2005 RS Chassis

7/21/2019 2005 RS Chassis

http://slidepdf.com/reader/full/2005-rs-chassis 1/86

TABLE OF CONTENTS

1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.1 SYSTEM COVERAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11.2 SIX-STEP TROUBLESHOOTING PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . .1

2.0 IDENTIFICATION OF SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

3.0 SYSTEM DESCRIPTION AND FUNCTIONAL OPERATION . . . . . . . . . . . . . . . . . . . . . .1

3.1 TEVES MARK 20e SYSTEM DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13.2 TRACTION CONTROL SYSTEM (TCS) DESCRIPTION (IF EQUIPPED) . . . . . . .13.3 SYSTEM COMPONENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

3.3.1 ABS AND BRAKE WARNING INDICATORS. . . . . . . . . . . . . . . . . . . . . .23.3.2 CONTROLLER ANTILOCK BRAKE (CAB) . . . . . . . . . . . . . . . . . . . . . . .23.3.3 HYDRAULIC CONTROL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23.3.4 ABS SWITCHES/SENSORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33.3.5 ABS INITIALIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33.3.6 ABS DIAGNOSTIC MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33.3.7 TRACTION CONTROL OPERATION (IF EQUIPPED) . . . . . . . . . . . . . .4

3.4 DIAGNOSTIC TROUBLE CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43.5 FREEZE FRAME. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43.6 DRBIII ERROR MESSAGES AND BLANK SCREEN . . . . . . . . . . . . . . . . . . . . . .4

3.6.1 DRBIII DOES NOT POWER UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43.6.2 DISPLAY IS NOT VISIBLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

4.0 DISCLAIMERS, SAFETY, WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

4.1 DISCLAIMERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44.2 SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

4.2.1 TECHNICIAN SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . .54.2.2 VEHICLE PREPARATION FOR TESTING. . . . . . . . . . . . . . . . . . . . . . . .5

4.2.3 SERVICING SUB-ASSEMBLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54.2.4 DRBIII SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

4.3 WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64.3.1 VEHICLE DAMAGE WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64.3.2 ROAD TESTING A COMPLAINT VEHICLE . . . . . . . . . . . . . . . . . . . . . . .6

4.4 DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

5.0 REQUIRED TOOLS AND EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

6.0 GLOSSARY OF TERMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

7.0 DIAGNOSTIC INFORMATION AND PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

ADJUSTABLE PEDALSINTERNAL CONTROLLER ERROR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10PEDAL SENSOR OPEN/SHORTED TO GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11PEDAL SENSOR SHORTED TO BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14PEDAL SW STUCK FORWARD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16PEDAL SW STUCK REARWARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18SYSTEM OVER VOLTAGE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20SYSTEM UNDER VOLTAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22*CAN’T ADJUST PEDALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24*CAN’T SET/RECALL MEMORY POSITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

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BRAKES (CAB)BUS SYSTEM COMMUNICATION FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31CAB INTERNAL FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33CLUSTER LAMP FAILURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35INCORRECT TONE WHEEL FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37LEFT FRONT SENSOR CIRCUIT FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38LEFT REAR SENSOR CIRCUIT FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

RIGHT FRONT SENSOR CIRCUIT FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38RIGHT REAR SENSOR CIRCUIT FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38LEFT FRONT WHEEL SPEED SIGNAL FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43LEFT REAR WHEEL SPEED SIGNAL FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43RIGHT FRONT WHEEL SPEED SIGNAL FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . .43RIGHT REAR WHEEL SPEED SIGNAL FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43PUMP CIRCUIT FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46SYSTEM OVER VOLTAGE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50SYSTEM UNDER VOLTAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53VALVE POWER FEED FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55*BRAKE LAMP SWITCH INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58*TRAC OFF INDICATOR NEVER/ALWAYS ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

*TRAC ON INDICATOR NEVER/ALWAYS ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

COMMUNICATION*NO RESPONSE FROM ADJUSTABLE PEDALS ASSEMBLY . . . . . . . . . . . . . . . . . . .63*NO RESPONSE FROM CONTROLLER ANTILOCK BRAKE . . . . . . . . . . . . . . . . . . . .65

VERIFICATION TESTSVERIFICATION TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

8.0 COMPONENT LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

8.1 CONTROLLER ANTILOCK BRAKE (CAB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

8.2 DATA LINK CONNECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .698.3 FUSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .698.4 TRACTION CONTROL SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

8.4.1 TRACTION CONTROL INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . .708.5 WHEEL SPEED SENSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

8.5.1 FRONT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .708.5.2 REAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

8.5A WHEEL SPEED SENSOR CONNECTORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .718.5A.1 FRONT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .718.5A.2 REAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

8.6 BRAKE LAMP SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

9.0 CONNECTOR PINOUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

ABS PUMP MOTOR (COMPONENT SIDE) - 2 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . .73BRAKE LAMP SWITCH - BLACK 6 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73CONTROLLER ANTILOCK BRAKE - BLACK 24 WAY . . . . . . . . . . . . . . . . . . . . . . . . . .74DATA LINK CONNECTOR - BLACK 16 WAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74FUSES (IPM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76LEFT FRONT WHEEL SPEED SENSOR - GRAY 2 WAY . . . . . . . . . . . . . . . . . . . . . . .76LEFT REAR WHEEL SPEED SENSOR - BLACK 2 WAY. . . . . . . . . . . . . . . . . . . . . . . .77RIGHT FRONT WHEEL SPEED SENSOR - GRAY 2 WAY . . . . . . . . . . . . . . . . . . . . . .77RIGHT REAR WHEEL SPEED SENSOR - BLACK 2 WAY . . . . . . . . . . . . . . . . . . . . . .77

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TABLE OF CONTENTS - Continued

10.0 SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

10.1 TEVES MARK 20E ANTILOCK BRAKE SYSTEM – ABS . . . . . . . . . . . . . . . . . . .79

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NOTES

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1.0 INTRODUCTION

The procedures contained in this manual include

a ll t h e sp ecif ica t io n s, in st r u ct ion s, a n d g r a p h ics

n ee de d t o d i a g nos e t h e 2005 C h r y s le r Tow n &

C ou n t r y, D od g e C a r a v a n , a n d C h r y s le r Voy a g er

M a r k 20e An t i lock B r a k in g S y s t em (AB S ) , a n d

Mark 20e Antilocke Bra king S ystem with Traction

Control. The diagnostics in this manual are basedon the failure condition or symptom being present

at t ime of diagnosis.

Please follow the recommendations below when

choosing your diagn ostic path.

1. F i r st m a k e su r e t h e D R B I I I is communicating

w i t h t h e C A B . I f t h e D R B I I I d is pl a y s a “ N o

Re spon se” con d it ion , y ou m u st d ia g n ose t h a t

first .

2. Read DTC’s (diagnostic trouble codes) with the

D R B I I I.

3 . I f n o D TC ’s a r e p r esen t , id en t i f y t h e cu st om e r

complaint.4. Once the DTC or customer complaint is identi-

f ie d , loca t e t h e m a t ch in g t e st in t h e Ta b le o f

Contents and begin to diagnose the symptom.

All component location views are in Section 8.0.

All connector pinouts are in Section 9.0. All sche-

ma tics a re in S ection 10.0.

An a sterisk (*) placed before t he sym ptom descrip-

tion indicat es a concern with no associat ed DTC.

When repairs are required, refer to the appropri-

a t e s er v ice m a n u a l f or t h e p rop er r em ov a l a n d

repair procedure.

Dia gnostic procedures cha nge every year. New

d ia g n o st ic sy st e m s m a y b e a d d e d ; ca r r y o ve r sy s-

t e ms m a y b e e n h a n ce d. R E AD TH I S M AN U AL

B E F O R E TR YI N G TO D I AG N O S E A VE H I C L E

C O D E . I t i s r e com m en d ed t h a t y ou r ev iew t h e

e n t ir e m a n u a l t o b e com e f a m ilia r w it h a l l n e w a n d

changed diagnostic procedures.

After using t his book, if you ha ve an y comments

or r ecommenda tions, please fill out the form a t the

back of the book and mail it back to us.

1. 1 SYSTEM COVERAGE

This dia gnostic procedure ma nua l covers th e a n-

tilock braking system (ABS), and the traction con-

trol system found on: C hrysler Town a nd Country,

Dodge Caravan, and Chrysler Voyager.

1. 2 SIX-STEP TROUBLESHOOTINGPROCEDURE

Diagnosis of the controller antilock brake module

is done in six ba sic steps:

• verification of complaint

• verificat ion of any related symptoms

• sy m p t om a n a ly sis

• problem isolation

• repair of isolated problem

• verifica tion of proper operat ion

2.0 IDENTIFICATION OFSYSTEM

Vehicles equipped with the Teves Mark 20e a n-

tilock brake system can be identified by the pres-

ence of th e contr oller a ntilock brake m odule locat ed

beneath the master cylinder.

The presence of the Traction Control syst em is

in d ica t e d b y t h e T RA C O F F sw it ch o n t o p o f t h e

steering column shroud.

3.0 SYSTEM DESCRIPTION ANDFUNCTIONAL OPERATION

3. 1 TEVES M ARK 20e SYSTEMDESCRIPTION

The controller antilock brake module is used to

m on it or w h e e l sp e ed s a n d t o m od u la t e (con t r o l)

h y d ra u l ic p re ss u r e i n e a ch b r a k e ch a n n el . Th e

m o d u la t e d h y d r a u lic p r e ssu r e is u se d t o p r e ve n t

wheel lock-up during braking.

The Teves Mar k 20e system uses a dia gonal s plit

h y dr a u li c b r a k e s ys t em . I n t h e s t a n da r d b ra k e

mode the master cylinder primary circuit supplies

p res s ur e t o t h e r i gh t f r on t a n d l ef t r ea r w h e el

brakes, and the secondary master cylinder circuit

su p p lie s p r e ssu r e t o t h e le f t f r o n t a n d r ig h t r e a r

wheel brakes.

All vehicles equipped with AB S use E lectronic

Va r ia b le B r a k e P r op or t ion in g (EV PB ) t o b a la n ce

f r o n t - t o - r e a r b r a k in g w h e n b r a k e s a r e a p p lie d in

t h e p a r t ia l b r a k in g r a n g e .

3. 2 TRACTION CONTROL SYSTEM (TCS)

DESCRIPTION (I F EQUIPPED)The main purpose of traction control is to reduce

w h eel s li p a n d m a i nt a i n t r a ct ion a t t h e d ri ven

wheels when road surfaces are slippery. The trac-

tion control system reduces wheel slip by braking

t h e w h e el t h a t i s l os in g t r a c t ion . Th e s y s t em i s

designed to operate at speeds below 56 km/h (35

mph).

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GENERAL INFORMATION

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3. 3 SYSTEM COMPONENTS

ABS

• controller antilock brake (CAB)

• vacuum booster

• master cylinder

• AB S i nt eg ra t e d el ect r on ic con t r ol m od u le/

hydra ulic control unit (HC U), valve block a ssem-b ly : 8 va lve solen oid s (4 in le t va lves, 4 ou t let

valves, 2 accumulators) 1 pump.

• 4 w heel speed sensor/tone w heel a ssemblies

• AB S w a r n in g in d ica t or

• f u se s a n d w ir in g h a r n e ss

• fluid reservoir

ABS With Traction Control

• CAB with Traction Control program ming

• HC U w it h t w o a d d it ion a l con t r o l va lve s

•

TRAC ON /OFF S w itch• TRAC /TRAC OF F in dica t ors

3. 3. 1 ABS AND BRAKE WARNING

INDICATORS

Th e a m b er A B S w a r n in g in d ica t o r is lo ca t e d in

t h e i n st r u m en t cl us t er. I t i s u s e d t o i n f or m t h e

d r ive r t h a t t h e a n t i lo ck f u n ct io n h a s b e e n t u r n e d

off. The AB S wa rning indicat or is controlled by the

CAB. The CAB controls the lamp with a command

over t h e P C I b u s.

The AB S Wa rning I ndicat or will remain lit du ring

every key cycle until a circuit or component fault isr e pa ir e d a n d t h e C AB n o lon g er d e t ect s t h e f a u lt .

After repair of a sensor signa l fault or a pum p motor

f a u lt , t h e C A B m u s t s e n se a l l f ou r w h ee ls a t 25

km/h (15 mph) before it wi ll extingu ish t he AB S a nd

TRAC OFF Indicators.

The Instrument Cluster will illuminate the ABS

Warn ing I ndicator if it loses communication w ith

t h e C A B .

The red B RAKE wa rning indicator is a lso locat ed

i n t h e i n st r u m en t cl us t er. I t ca n b e a ct i va t e d i n

severa l w ays. Application of the par king brake or a

low fluid signa l from the fluid level swit ch locat ed in

the ma ster cylinder reservoir w ill cause t he indica-tor to come on.

3. 3. 2 CONTROLLER ANTILOCK BRAKE

(CAB)

Th e C on t r ol ler An t il ock B r a k e (C AB ) i s a

microprocessor-based device tha t monitors wheel

sp ee d s a n d con t r o ls t h e a n t i lock f u n ct ion s. Th e

C AB con t a in s t w o m icr op r ocessor s t h a t r e ce ive

id en t ica l se n sor sig n a ls a n d t h e n in d ep en d e n t ly

process the informa tion. The results ar e th en com-

pared to make sure that they agree. Otherwise, the

CAB w ill turn off the ant ilock and t urn on the AB S

amber warning indicator.

The primary functions of the C AB are to:

• detect wheel locking tendencies

• control f luid pressure modulation to the brakes

during a ntilock stop

• monitor the system for proper operation

• m an age t ra ction control functions

• provide communication to the DRBIII while in

diagnostic mode

• store diagn ostic informa tion in non-volatile mem-

or y

The CAB cont inuously monitors t he speed of each

wheel. When a wheel locking tendency is detected,

t h e C AB w i l l c om m a n d t h e a p pr op ri a t e v a l ve t o

modulat e brake fluid pressure in its h ydra ulic unit .

B r a k e p e d a l p o sit io n is m a in t a in e d d u r in g a n a n -

t i lock st op b y b ein g a close d sy st e m . Th e C A Bcontinues to control pressure in individua l hydr au-

lic cir cu it s u n t i l a w h e el lockin g t e n d en cy is n o

longer present. The CAB turns on the pump motor

during an antilock stop.

Th e a n t i lock b r a k e sy st e m is con st a n t ly m on i-

tored by t he C AB for proper opera tion. If t he C AB

d et e ct s a s y s t em m a l fu n ct i on , i t ca n d is a b le t h e

a n t i lock s ys t em a n d t u rn on t h e AB S w a r n in g

in d ica t or . I f t h e a n t i lock f u n ct ion is d isa b le d , t h e

sy st e m w il l r e ve r t t o st a n d a r d b a se b r a k e sy st e m

operation.

The CAB inputs include the following:

• diagnostic communication

• four wheel speed sensors

• th ree pow er feeds: va lve, pump, and m icroproces-

sor

• b r a k e sw it ch

• t ra ction control sw itch

The CAB outputs include the following:

• AB S w a r n in g in d ica t or a ct u a t ion

• 12 volts power to wheel speed sensors

• eight valves

• ten valves with traction control

• diagnostic communication

• PCI bus communication

• t ra ction control lam p illumination

3. 3. 3 HYDRAULIC CONTROL UNIT

Th e h y d r a u lic con t r o l u n it (HC U ) con t a in s t h e

valve block assembly, an d pump/motor assembly.

Th e HC U is a t t a ch ed t o t h e C A B .

Valve Block Assembly: The valve block assem-

bly contains valves with four inlet valves and four

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outlet valves. The inlet valves are spring-loaded in

the open posit ion and the outlet valves are spring

lo a d e d in t h e clo se d p o sit io n . D u r in g a n a n t i lo ck

stop, th ese valves are cycled to ma inta in t he proper

slip rat io for ea ch wheel. I f a wheel detects slip, the

inlet valve is closed to prevent and further pressure

increase. Then the outlet valve is opened to release

the pressure to the a ccumulat ors until the w heel is

n o lon g e r sl ip pin g . O n ce t h e w h e el is n o lon g ersl ip pin g , t h e ou t let va lve is close d a n d t h e in le t

valve is opened to rea pply pressure. If th e wh eel is

d ecel er a t in g w i t hi n i t s p red et er m in ed l im it s

(proper slip ratio), the inlet valve will close to hold

t h e pr es su r e con s t a nt . O n v eh icl es w h ich a r e

equipped with a traction control system, there are

t w o a d d it ion a l va lves t h a t isola t e t h e m a st e r cy lin -

der and rear wheels. During a traction control event

the bra kes are applied t o reduce wh eel slippage.

Pump Motor Assembly: The pump motor as-

sembly provides the extra amount of f luid needed

during a nt ilock braking . The pump is supplied fluid

tha t is released to the accumulat ors when the outletvalve is opened during an an tilock stop. The pump

is also used to drain the accumulator circuits after

the a ntilock stop is complete. The pump is operat ed

b y a n in t e gr a l e le ct r ic m o t o r. Th is m ot o r is con -

trolled by the CAB. The CAB ma y tur n on the pump

motor when an antilock stop is detected. The pump

co n t in u e s t o r u n d u r in g t h e a n t i lo ck st o p a n d is

turned off after the stop is complete. Under some

co n d it io n s, t h e p u m p m o t o r w il l r u n t o d r a in t h e

accumulators during the next drive off . The CAB

monitors the pump motor operat ion internally.

3. 3. 4 ABS SWITCHES/SENSORSMaster Cylinder: The mast er cylinder is a sta n-

dard ta ndem compensating port design for AB S a nd

non AB S systems. Traction control vehicles use a

dual center port master cylinder. For proper trac-

tion control operation th e sta nda rd m ast er cylinder

must not be used.

A f lu id l ev el s w i t ch i s l oca t e d i n t h e m a s t e r

cylinder fluid reservoir . The switch closes when a

low fluid level is detected. The fluid level sw itch

turns on the brake warning indicator by grounding

the indicator circuit . This switch does not disable

t h e AB S sy st e m .Wheel Speed Sensors and Tone Wheels: On e

active wheel speed sensor (WSS) is located at each

w h e e l a n d se n d s a sm a ll D C sig n a l t o t h e co n t r o l

m od u le (C A B ). Th is sig na l is g en e r a t e d w h e n a

toothed sensor ring (tone wheel)passes by a station-

a r y w h e e l sp ee d se n sor. Th e C AB con ver t s t h e

signals for each w heel.

Because of internal circuitry, correct wheel speed

sensor function cannot be determined by a continu-

ity or resistance check t hrough th e sensor.

The front w heel speed sensor is at ta ched to a boss

i n t h e s t ee ri n g k n uck le . Th e t on e w h e el i s a n

integral pa rt of the front axle sha ft . The rear speed

sensor is mounted though the bearing cover and the

r ea r t on e w h e el i s a n i nt eg ra l pa r t of t h e r e a r

bearing hub. The w heel speed sensor a ir ga p is n ot

a d ju st a b le . Re f e r t o t h e se r vice m a n u a l f o r w h e e l

speed sensor a ir ga p a nd resistance specificat ions.

The four wheel speed sensors are serviced indi-vidually. The front tone wheels are serviced as an

a sse m b ly w it h t h e ou t e r con st a n t velocit y (C .V.)

joint housing. The rear tone wheels are serviced as

an assembly.

Correct antilock system operation is dependent

on tone wheel speed signals from the wheel speed

sensors. The vehicle’s w heels an d t ires should a ll be

the sam e size and t ype to generat e accura te signals.

I n a d d i t ion , t h e t i r es s h ou ld b e i n fl a t e d t o t h e

recommended pressure for optimum system opera-

tion. Varia t ion in w heel and t ire size or significan t

variations in inflation pressure can produce inaccu-

rate wheel speed signals; however, the system willcontinue to function when using the correct factory

mini-spare.

3. 3. 5 ABS INITIALIZATION

S y s t em i ni t ia l iz a t ion s t a r t s w h en t h e k ey i s

turned to “run”. At this point , the CAB performs a

complete self-check of all electrical components in

the antilock systems.

B etw een 8-17 km/h (5-10 mph), a d yn a mic t est i s

performed. This will momenta rily cycle t he inlet

a n d ou t let va lves, ch eck w h e el sp ee d se n sor cir -

cu it r y, a n d r u n t h e p u m p m o t or a t 25 k m /h (15mph). The CAB will try to test the pump motor. If

the bra ke pedal is a pplied the test w ill be run a t 40

km/h (24 mph) regard less of brake s wit ch sta te. I f,

during the dyna mic test , the bra ke pedal is a pplied,

t h e d r ive r m a y f e e l t h e t e st t h r o u g h b r a k e p e d a l

pulsations. This is a normal condition.

I f a n y com p on e n t e xh ib it s a t r o ub le con d it ion

during system init ialization or dynamic check, the

CAB will illuminat e the AB S w ar ning indicat or and

TRAC OFF lamp if equipped.

3.3. 6 ABS DIAGNOSTIC MODE

To enter dia gnostic mode, a vehicle speed must beb elow 10 k m /h (6 m p h ) a n d n o A B S con d it ion

p r ese n t . I f veh icle sp ee d is n ot b elow 10 k m /h

(6 m p h ), a “N o Re spon se” m e ssa g e cou ld b e d is-

p la y e d b y t h e D R B I I I. The following are charac-

teristics of diagnostic mode:

– T h e a m b e r A B S w a r n in g in d ica t o r w il l b l in k

rapidly. If a hard trouble code, such as Valve

Power Feed Failure code is present, the indi-

cator will be illuminat ed without blinking un-

til t he t rouble condition is cleared.

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– Antilock opera tion is disa bled.

– Th e HC U va lves ca n n ot b e a ct u a t e d w h e n t h e

vehicle speed is a bove 8 km/h (5 mph). If v a lve

a ctua tion is a tt empt ed ab ove 8 km/h (5 mph ), a

“No Response” message will be displayed on

t h e D R B I I I.

3. 3. 7 TRACTION CONTROL OPERATION

(IF EQUIPPED)

The Controller Antilock B ra ke (CAB) monitors

wheel speeds. If , during acceleration, the module

detects front (drive) wheel slip and the brakes are

n ot a p p lied , t h e C A B w il l e n t e r t r a ct ion con t r o l

mode. Tra ction contr ol works in the following order

when drive wheel slip is detected.

1. Close the (norma lly open) isolat ion valves.

2. St a rt pump/motor a nd supply volume/pressure

to front hydraulic circuits (pump runs continu-

ously during traction control).

3. Open a nd close build and d ecay valves to main-t a i n m i n i m u m w h e e l s l i p a n d m a x i m u m t r a c -

tion.

Th e cy cl in g of t h e b u il d a n d d eca y v a l ve s i s

similar t o the AB S except th at they w ork to control

wheel spin by applying brakes. ABS function is to

control w heel skid by releasing brakes.

Tw o pressure relief va lves a llow excess fluid vol-

ume to return to the reservoir when not used by the

build/decay cycles. These a re r equired because the

pump supplies more volume tha n the t raction con-

trol system requires.

If at an y t ime the brake pedal is a pplied during a

t r a ct ion con t r o l cy cle, t h e b r a k e la m p sw it ch w il ltr igger the C AB to swit ch off the t ra ction control.

T h e t r a ct io n co n t r o l sy st e m w il l b e e n a b le d a t

each ignition cycle. It may be turned off by depress-

ing t he Traction C ontrol S witch. The t raction con-

t r o l sy st e m f u n ct ion la m p w il l i llu m in a t e “TRAC

O F F ” im m ed ia t e ly u p on d e pr e ssin g t h e t r a ct ion

control sw itch butt on. Only t he “TRAC” portion of

the “TRAC OFF” indicat or will illuminate during a

traction control event.

I f t h e C A B ca l cu la t e s t h a t t h e b r a k e t e m pe ra -

t u r es a r e h i gh , t h e t r a c t ion con t r ol s y st e m w i l l

b ecom e in op er a t ive u n t i l a t im e -ou t p er iod h a s

elapsed. When in this thermal protection mode, the

tra ction control “TRAC OFF” lamp w ill illuminat e;

however, a fa ult w ill not be registered.

3. 4 DIAGNOSTIC TROUBLE CODES

The Controller Antilock Brake may report any of

several Dia gnostic Trouble Codes (DTC)s. For a list

of the DTCs diagnosed in this manual, refer to the

Ta ble of Cont ents.

3.5 FREEZE FRAME

Freeze Frame ta kes a “snapshot” of specific vehi-

cle informa tion the insta nt an ABS failure is recog-

n i ze d a n d s t or es t h i s i n for m a t i on i n t o t h e C AB

memory. This informa tion can be accessed using th e

D R B I I I t o h e lp d ia g n ose t h e f a u lt . F r e e z e F r a m e

w i l l c a pt u r e t h e f ir s t t i m e f a i lu r e o r o n ly a n ew

failur e tha t occurs during th e current ign ition cycle.

3.6 DRBI II ERROR MESSAGES ANDBLANK SCREEN

U n d e r n o r m a l o p e r a t io n , t h e D RB I I I w il l d is-

play one of only t wo error messages:

– U s er -R eq ues t ed WAR M B oot or U s er -

Requested COLD Boot.

I f t h e D R B I I I sh ou ld d ispla y a n y ot h e r e r r or

m es s a g e, r ecor d t h e en t i r e d i s pl a y a n d ca l l t h e

S TAR C e n t e r. Th is is a sa m p le o f su ch a n e r r or

message display:ver: 2.14da te: 26 J ul93file: key_itf.ccdate: J ul 26 1993line: 548err. 0x1User-Requested COLD boot P ress MORE t oswitch between this display

and the application screen.P ress F4 w hen done noting informa tion.

3.6.1 DRBI II DOES NOT POWER UP

If the LED’s do not light or no sound is emitted atstart up, check for loose cable connections or a bad

cable. Check the vehicle battery voltage (data link

con n e ct o r ca vit y 16). A m in im u m of 11 volt s is

r e q u ir e d t o a d e q u a t e ly p ow e r t h e D RB I I I.

I f a l l con n ect i on s a r e p rop er a n d t h e v eh i cl e

b a t t e ry i s f ul ly ch a r g ed , a n i n op er a t i v e D R B I I I

ma y be t he result of faulty cable or vehicle wiring.

3.6. 2 DISPLAY IS NOT VISIBLE

Low temperatures will affect the visibility of the

display. Adjust t he contra st to compensate for this

condition.

4.0 DISCLAIMERS, SAFETY,WARNINGS

4.1 DISCLAIMERS

All information, illustrations, and specifications

con t a i n ed i n t h i s m a n u a l a r e b a s e d o n t h e l a t e s t

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in for m a t ion a va ila b le a t t h e t im e o f p u b lica t ion .

The right is reserved to make changes at any t ime

without notice.

4.2 SAFETY

4. 2. 1 TECHNICIAN SAFETY INFORM ATION

WARNING: ENGINES PRODUCE CARBONMONOXIDE THAT IS ODORLESS, CAUSESSLOWER REACTION TIME, AND CAN LEADTO SERIOUS INJURY. WHEN THE ENGINE ISOPERATING, KEEP SERVICE AREAS WELLVENTILATED OR ATTACH THE VEHICLEEXHAUST SYSTEM TO THE SHOP EXHAUSTREMOVAL SYSTEM.

Set t he parking bra ke and block the wh eels beforet e st in g o r r e pa ir in g t h e veh icle. I t is e spe cia l ly

importa nt to block t he w heels on front-wh eel drive

vehicles; the parking brake does not hold the drive

wheels.

When servicing a vehicle, always wear eye pro-

t e ct i on , a n d r em ov e a n y m et a l je w el r y s u c h a s

r in g s, w a t ch ba n d s o r b r a celet s t h a t m ig h t m a k e a n

inadvertent electrical conta ct .

When dia gnosing a chassis problem, it is impor-

ta nt to follow approved procedures where applica-

ble. These procedures can be found in the service

ma nua l. Following these procedures is very impor-

t a n t t o t h e sa f e t y o f in d ivid u a ls p e r f o r m in g d ia g -

nostic tests.

4. 2. 2 VEHICLE PREPARATION FOR

TESTING

M a k e su r e t h e ve h icle b e in g t e st e d h a s a f u l ly

char ged bat tery. If is does not, fa lse diagn ostic codes

or error messages may occur.

4. 2. 3 SERVICING SUB-ASSEM BLIES

S o m e com p on e n t s of t h e ch a ssis sy st e m a r e in -

tended to be serviced as an assembly only. Attempt-

in g t o r em ov e or r epa i r cer t a in s ys t em s ub -

components ma y result in personal injury and /or

improper sys tem operat ion. Only th ose component s

with approved repair an d insta llat ion procedures in

the s ervice ma nual should be serviced.

4.2.4 DRBI II SAFETY INFORMATION

WARNING: EXCEEDING THE LIMITS OF THEDRBIII MULTIMETER IS DANGEROUS. ITCAN EXPOSE YOU TO SERIOUS ORPOSSIBLY FATAL INJURY. CAREFULLYREAD AND UNDERSTAND THE CAUTIONSAND THE SPECIFICATION LIMITS.

• Follow the vehicle ma nufacturer’s service speci-

fications at all t imes.

• D o n ot u se t h e D RB I I I

i f i t h a s b ee n d a m a g e d.• D o n ot u s e t h e t e st l ea d s i f t h e i n su la t i on i s

dam aged or if meta l is exposed.

• To a void electrical shock, do not touch the test

leads, t ips, or t he circuit being t ested.

• C h o o se t h e p r o p e r r a n g e a n d f u n ct io n s f o r t h e

measurement. Do not try voltage or current m ea-

surements that may exceed the rated capacity.

• Do not exceed the limits show n in the ta ble below:

FUNCTION INPUT LIMIT

Volt s 0 - 500 pea k volt s AC

0 - 500 volts DC

O h m s (r es is t a n ce )* 0 -1. 12 m eg oh m s

Frequency Measured

Frequency Generated

0 - 10 kH z

Tem pera ture -58 - 1100° F

-50 - 600° C

* Ohms cannot be mea sured if volta ge is present.

Ohms can be measured only in a non-powered

circuit.

• Volt a g e b e t w e en a n y t e r m in a l a n d g r ou n d m u st

not exceed 500v D C or 500v pea k AC.

• Use caution when measuring voltage above 25v

DC or 25v AC.

• Use th e low current shunt to measure circuits up

t o 10A. U se t h e h ig h cu r r en t cla m p t o m e a su r e

circuits exceeding 10A.

• When t esting for t he presence of voltage or cur-

r e n t , m a k e su r e t h e m e t er is f u n ct ion in g cor -

r ect l y. Ta k e a r ea d i n g of a k n ow n v ol t a g e o r

current before a ccepting a zero reading.

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• When measuring current, connect the meter in

series with the load.

• Disconnect the live test lead before disconnecting

the common test lead.

• Wh en u sin g t h e m et er f un ct ion , keep t h e

D R B I I I a w a y f r o m sp a r k p lu g o r co il w ir e s t o

avoid measuring error from outside interference.

4.3 WARNINGS

4. 3. 1 VEHICLE DAMAGE WARNINGS

Before disconnecting any control module, make

su r e t h e ig n it ion is ‘‘of f ’’. F a i lu r e t o d o so cou ld

damage the module.

When testing voltage or continuity at any control

module, use the terminal side (not th e w ire end) of

t h e con n e ct o r. D o n o t p r ob e a w ir e t h r o ug h t h e

insulation, this will dama ge it a nd eventua lly cause

it to fail because of corrosion.

B e careful when performing electrical t ests so a st o p r even t a ccid en t a l sh or t in g of t e r m in a ls . S u ch

mista kes can dam age fuses or components. Also, a

second code could be set , making diagnosis of the

original problem more difficult.

4. 3. 2 ROAD TESTING A COMPLAINT

VEHICLE

Some complaints w ill require a t est drive as par t

of the repair verifica tion procedure. The purpose of

t h e t e st d r ive is t o t r y t o d u p lica t e t h e d ia g n o st ic

code or sympt om condition.

WARNING: BEFORE ROAD TESTING AVEHICLE, BE SURE THAT ALLCOMPONENTS ARE REASSEMBLED.DURING THE TEST DRIVE, DO NOT TRY TOREAD THE DRB SCREEN WHILE IN MOTION.DO NOT HANG THE DRBIII FROM THEREAR VIEW MIRROR OR OPERATE ITYOURSELF. HAVE AN ASSISTANTAVAILABLE TO OPERATE THE DRBIII.

4.4 DIAGNOSIS

1. Your diagnostic test procedure must begin with a

th orough visua l inspection of the syst em in ques-

tion for da ma ged components or disconnected

co n n e ct o r s. F o r A B S t h e b r a k e la m p s m u st b e

operational prior to continuing.

2. C o n n ect t h e D RB I I I to t he da ta link connector,

which is located under th e dash to the left of the

st e er in g colu m n . I f t h e D RB I I I does n ot power

up, check the power a nd ground supplies t o the

connector.

3. Turn t he ignit ion on. Select the syst em in q ues-

t ion . I f t h e D R B I I I d ispla y s “N o Re spon se”

condition you must diagnose that f irst .

4. Rea d an d record a ll diagnostic trouble codes. For

ABS if the “Valve Power Feed Circuit” diagnostic

trouble code is present, it must be repaired prior

to addressing a ny other DTC’s. If a ny a ddit iona l

DTC’s are present, proceed to the appropriate

test by locating t he ma tching test in the Ta ble ofContents and begin to diagnose the symptom.

5. For AB S if there are n o diagnostic trouble codes

present, identify the customer complaint. Select

“Inputs/Outputs” a nd rea d t he brake sw itch in-

put as you press and release the brake pedal. I f

the display does not ma tch the sta te of the pedal,

perform the proper test by locating the matching

test in the Table of Contents a nd begin to diag-

nose the symptom. If a problem exists with the

y el low “ AB S ” w a r n in g i nd ica t or or t h e r ed

“Brake” indicator exists, refer to the proper tests

b y l oca t i n g t h e m a t c h in g t e st i n t h e Ta b l e o fC o n t e n t s a n d b e g in t o d ia g n o se t h e sy m p t o m .

Re a d t h e t r a ct io n co n t r o l sw it ch in p u t a s y o u

press and release the switch. If the display does

not ma tch the st at e of the indicator perform t he

proper test by locating the matching test in the

Ta b l e o f C on t en t s a n d b eg in t o d ia g n os e t h e

symptom.

6. If no other problems a re found, it will be neces-

sa r y t o r o a d t e st t h e ve h icle. P e r for m se ve r a l

a nt ilock st ops from a bove 50 Km /h (30 mph) a nd

t h en r ep ea t s t ep 4. I f a n y d i a g nos t ic t r ou b le

cod e s a r e p r ese n t , p r ocee d t o t h e a p p r op r ia t e

t e st .

7. The following conditions should be considered

“NORMAL” operation, a nd no repairs should be

at tempted to correct them.

– B r a k e ped a l f eed ba c k d ur in g a n AB S s t op

(clicking, vibra ting).

– Clicking, groaning or buzzing a t 25 Km/h (15

mph) or 40 K m/h (24 mph ) (driv e off self tes t).

– G r o a n in g n o ise d u r in g a n A B S st op .

– S l ig h t b r a k e p e d a l d r o p a n d p op n o ise w h e n

ignit ion is init ially t urned on.

– B r a k e p ed a l r a t ch et in g d ow n a t t h e e n d of a nABS stop.

8. If th e complaint is AB S “cycling” at the end of a

s t op a t low s peed s, it m a y b e c a us ed b y a

ma rginal wheel speed sensor signal. The sensor

a ir g a p , t o n e w h e el con d it ion , a n d /or b r a k e s

hanging up are possible causes of this condition.

9. Af t er a r oa d t e st i n w h i ch n o p r ob le ms w e r e

found, refer to any Technical Service B ulletins

t h a t m a y a p ply.

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5.0 REQUIRED TOOLS ANDEQUIPMENT

D R B I I I (dia gnostic r ead-out box)

jumper wires

ohmmeter

voltmeter

test light

6.0 GLOSSARY OF TERMS

ABS an tilock brake system

CAB cont roller an tilock bra ke

DC direct current

DLC dat a link connector

DRB dia gnostic rea d-out box

DTC diagnostic test code

EVBP electr onic va ria ble bra ke proportion-

in g

HCU hydra ulic control unit

IC U integrat ed control unit

IPM integrat ed power module

J BL K junction block

PCI program ma ble communication inter-

face

P/M pump motor

WSS wh eel speed sensor

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NOTES

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7.0

DIAGNOSTIC INFORMATION AND

PROCEDURES

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Symptom:INTERNAL CONTROLLER ERROR

When Monitored and Set Condition:

INTERNAL CONTROLLER ERROR

When Monitored: Any t ime that the module is aw ake.

Set Condit ion: When the AP M detects a n internal fault , the DTC is set .

POSSIBLE CAUSES

IN TE RMI TTE NT D TC

AP M - INTER NAL FAU LT

TEST ACTION APPLICABILITY

1 Set t h e memor y posit ion s a ccor din g t o t h e ow n er ’s p r efer en ces .

Recall the memory positions.

W it h t h e DR B I I I, era se D TC’s.

W it h t h e DR B I I I, read DTC’s.

D o es t h e D R B I I I display INTERNAL CONTROLLER ERROR DTC active?

All

Yes → Replace an d progra m the Adjustable Peda ls Module in accorda nce

w it h t h e S er v ice I n for ma t ion .

P erform ADJ US TAB LE P ED ALS VERIFI CATION TES T - VER

1.

No → G o To 2

2 Tu r n t h e i gn it i on of f.

Visually in spect t he relat ed wir ing ha rness. Look for an y cha fed, pierced, pinched, or

p a r t ia lly br oken w ir es.

Visually inspect the related wire harness connectors. Look for broken, bent, pushed

out, or corroded terminals.

Refer to any Hotline letters or Technical S ervice Bu lletins tha t m ay apply.

Were a ny problems found?

All

Yes → Repair as necessary.


1.

No → Test Complet e.

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Symptom:PEDAL SENSOR OPEN/SHORTED TO GROUND


PEDAL SENSOR OPEN/SHORTED TO GROUND

When Monitored: Continuously.

Set Condit ion: When the Adjusta ble Pedals Module detects a ground condit ion on t he

Adjusta ble P edal Sensor Signa l c ircuit .

POSSIBLE CAUSES


AD J U S TAB L E P ED A L S S E N S O R F EE D C I RC U I T O PE N

AD J U S TAB L E P ED A L S S EN S O R RETU RN C I RC U I T O PE N

AD J U S TAB L E P ED A L S S E N S O R S I G N A L C I RC U I T O PE N

ADJ US TAB LE P ED ALS SE NSOR FAULT



1 Wit h t he D RB I II, era se D TC’s.


D o es t h e D R B I I I dis pla y P E DA L SE NS OR OP E N/SH OR TE D TO G R OU ND DTC

active?

All

Yes → G o To 2

No → G o To 8


E n s u r e t h e Adju s t a ble P eda ls S en s or is fu lly s ea t ed a n d locked.

Turn the ignition on.

W it h t h e DR B I I I, read the active DTC’s.

D o es t h e D R B I I I dis pla y P E DA L SE NS OR OP E N/SH OR TE D TO G R OU ND DTC

active?

All

Yes → G o To 3

No → G o To 8


Disconnect the Adjustable Pedals Sensor harness connector.


M ea s u r e t h e v olt a ge bet w een t h e A dju s t a ble P eda ls Sen s or Feed cir cu it a n d t h e

Adjustable Pedals Sensor Return circuit .

I s t h e v olt a ge bet w een 4 a n d 5. 2 v olt s ?

All

Yes → G o To 4

No → G o To 6

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Disconnect the Adjustable Pedals Module harness connector.

M ea s u r e t h e r es is t a n ce of t h e A dju s t a ble P eda ls S en s or Sign a l cir cu it bet w een t h eAdjustable Pedals Sensor connector and the Adjustable Pedals Module connector.

Is the resistance below 1.0 ohm?

All

Yes → G o To 5

No → Repair the Adjustable Peda ls Sensor Signal circuit for an open.


1.



Measure the resistance between the Adjustable Pedals Sensor Signal circuit and the

A dju s t a ble P eda ls Sen s or R et u r n cir cu it a t t h e A dju s t a ble P eda ls Sen s or h a r n es s

connector.

Is the resistance below 100.0 ohms?

All


w it h t h e S er v ice I n for ma t ion . .


1.

No → R e pl a ce t h e A dju s t a b l e P e d a l s S e n so r i n a c cor d a n c e w i t h t h e

Service Information.


1.




M ea s u r e t h e r es is t a n ce of t h e A dju s t a ble P eda ls Sen s or Feed cir cu it bet w een t h eAdjustable Pedals Sensor connector and the Adjustable Pedals Module connector.


All

Yes → G o To 7

No → Repair the Adjustable P edals S ensor Feed circuit for an open.


1.




M ea s u r e t h e r es is t a n ce of t h e A dju s t a ble P eda ls S en s or R et u r n cir cu it bet w een t h e

Adjustable Pedals Sensor connector and the Adjustable Pedals Module connector.


All




1.

No → Repair the Adjustable P edals S ensor Return circuit for a n open.


1.

12

ADJUSTABLE PEDALS

PEDAL SENSOR OPEN/SHORTED TO GROUND — Continued

7/21/2019 2005 RS Chassis






Visually inspect the related wire harness connectors. Look for broken, bent, pushedout, or corroded terminals.

Refer to any Hotline letters or Technical S ervice Bulletins t ha t m ay apply.


All



1.


13

ADJUSTABLE PEDALS

PEDAL SENSOR OPEN/SHORTED TO GROUND — Continued

7/21/2019 2005 RS Chassis


Symptom:PEDAL SENSOR SHORTED TO BATTERY


PEDAL SENSOR SHORTED TO BATTERY


Set C ondition: When the Adjustable P edals Module detects th e volta ge on the Adjusta ble

P edal S ensor S ignal c ircuit is too high.

POSSIBLE CAUSES


ADJ US TAB LE P ED ALS SE NSOR FAULT

ADJ US TAB LE P ED ALS SE NSOR SI G NAL C IRC UI T SH ORTED TO B ATTERY

AD J U S TAB L E P ED A L S S EN S O R RETU RN C I RC U I T O PE N





D o es t h e D R B I I I display PEDAL SENSOR SHORTED TO BATTERY DTC active?

All

Yes → G o To 2

No → G o To 6





D o es t h e D R B I I I display PEDAL SENSOR SHORTED TO BATTERY DTC active?

All

Yes → G o To 3

No → G o To 6

3 Dis con n ect t h e Adju s t a ble P eda ls Sen s or h a r n es s con n ect or.



D o es t h e D R B I I I

display PEDAL SENSOR SHORTED TO BATTERY active?

All

Yes → G o To 4

No → R e pl a ce t h e A dju s t a b l e P e d a l s S e n sor i n a c cor d a n c e w i t h t h e



1.

14

ADJUSTABLE PEDALS

7/21/2019 2005 RS Chassis






Note: Check connector - Clean/repair as necessary.Turn the ignition on.

M ea s u r e t h e v olt a ge of t h e Adjus t a ble P eda ls S en s or Sign a l cir cu it .

I s t h er e a n y v olt a ge p r es en t ?

All

Yes → R epa ir t h e Adju s t a ble P eda ls Sen s or Sign a l cir cu it for a s h or t t o

voltage.


1.

No → G o To 5




Note: Check connector - Clean/repair as necessary.M ea s u r e t h e r es is t a n ce of t h e A dju s t a ble P eda ls S en s or R et u r n cir cu it bet w een t h e

Adjustable Pedals Sensor connector and the APM connector.

Is the resistance below 1 ohm?

All




1.

No → Repair the Adjustable P edals Sensor Return circuit for an open.


1.


Visually inspect th e relat ed w iring ha rness. Look for an y cha fed, pierced, pinched, orp a r t ia lly br oken w ir es.



M ov e t h e p e da l s a l l t h e w a y f o r w a r d a n d r e a r w a r d t o s ee i f t h e D TC i s r e la t e d t o

position.



All



1.


15

ADJUSTABLE PEDALS

PEDAL SENSOR SHORTED TO BATTERY — Continued

7/21/2019 2005 RS Chassis


Symptom:PEDAL SW STUCK FORWARD


PEDAL SW STUCK FORWARD


S e t C o n di t ion : Wh e n t h e Ad ju s t a b l e P e da l s M od u le d e t e ct s b a t t e r y v ol t a g e o n t h e

Adjusta ble Pedals Sw itch Forwa rd circuit for more t han 20 seconds.

POSSIBLE CAUSES


ADJ US TAB LE P ED ALS SWITCH FAU LT

ADJ US TAB LE P ED ALS SWITCH FORWARD CI RC U IT SHOR TED TO B ATTERY





Wait 30 seconds.


D o es t h e D R B I I I display P ED AL S W STUC K F ORWARD DTC active?

All

Yes → G o To 2

No → G o To 4


Disconnect the Adjustable Pedals Switch connector.



D o es t h e D R B I I I display P ED AL S W STUC K F ORWARD DTC active?

All

Yes → G o To 3

No → R e pl a ce t h e Ad ju s t a b le P e d a l s S w i t c h i n a c cor d a n c e w i t h t h e



1.

16

ADJUSTABLE PEDALS

7/21/2019 2005 RS Chassis






Turn the ignition ON.M ea s u r e t h e v olt a ge of t h e Adjus t a ble P eda ls Sw it ch For w a r d cir cu it .


All

Yes → Repair the Adjustable Peda ls Switch Forwa rd circuit for a short to

voltage.


1.

No → Replace an d progra m the Adjustable Peda ls Module in accorda nce



1.


Visually in spect t he relat ed w iring ha rness. Look for an y cha fed, pierced, pinched, orp a r t ia lly br oken w ir es.





All



1.


17

ADJUSTABLE PEDALS

PEDAL SW STUCK FORWARD — Continued

7/21/2019 2005 RS Chassis


Symptom:PEDAL SW STUCK REARWARD


PEDAL SW STUCK REARWARD


S e t C o n di t ion : Wh e n t h e Ad ju s t a b l e P e da l s M od u le d e t e ct s b a t t e r y v ol t a g e o n t h e

Adjusta ble Pedals Sw itch R earw ar d circuit for more tha n 20 seconds.

POSSIBLE CAUSES



ADJ US TAB LE P ED ALS SWITCH RE ARWARD CI RC U IT SHOR TED TO B ATTERY





Wait 30 seconds.


D o es t h e D R B I I I display P ED AL S W STUC K R EARWARD DTC a ctive?

All

Yes → G o To 2

No → G o To 4





D o es t h e D R B I I I display P ED AL S W STUC K R EARWARD DTC a ctive?

All

Yes → G o To 3

No → R e pl a ce t h e Ad ju s t a b le P e d a l s S w i t c h i n a c cor d a n c e w i t h t h e



1.

18

ADJUSTABLE PEDALS

7/21/2019 2005 RS Chassis






Turn the ignition ON.M ea s u r e t h e v olt a ge of t h e Adjus t a ble P eda ls Sw it ch R ea r w a r d cir cu it .


All

Yes → R epa ir t h e Adju s t a ble P eda ls S w it ch R ea r w a r d cir cu it for a s h or t

to voltage.


1.




1.







All



1.


19

ADJUSTABLE PEDALS

PEDAL SW STUCK REARWARD — Continued

7/21/2019 2005 RS Chassis


Symptom:SYSTEM OVER VOLTAGE


SYSTEM OVER VOLTAGE


Set Condit ion: When the Adjusta ble P edals Module detects 3 consecutive J 1850 Bus

messages indicating vehicle voltage over 15.9 VDC.

POSSIBLE CAUSES


VEH I C L E C H ARG I N G S YS TEM F AU L T



1 Wit h t he D RB I II, r ea d t h e v eh icle v olt a ge s t a t u s .

D o es t h e D R B I I I display a high voltage concern?

All

Yes → Refer to Cha rging informat ion for the relat ed symptom(s).


1.

No → G o To 2

2 Tu r n t h e i gn it i on of f.Turn the ignition on.


Turn the ignition off.


Wait 10 seconds.


D o es t h e D R B I I I display S YSTEM OVER VOLTAGE DTC active?

All




1.

No → G o To 3

20

ADJUSTABLE PEDALS

7/21/2019 2005 RS Chassis




NOTE: Ensure the battery is fully charged.Visually in spect t he relat ed wir ing ha rness. Look for an y cha fed, pierced, pinched, or

p a r t ia lly br oken w ir es.Visually inspect the related wire harness connectors. Look for broken, bent, pushed



I n s pe ct t h e v eh i cl e f o r a f t e r m a r k et a c ce ss or i es t h a t m a y e xce ed t h e G e n e r a t or

Sys t em ou t p u t .


All



1.


21

ADJUSTABLE PEDALS

SYSTEM OVER VOLTAGE — Continued

7/21/2019 2005 RS Chassis


Symptom:SYSTEM UNDER VOLTAGE


SYSTEM UNDER VOLTAGE


Set Condition: When t he Adjustable P edals Module detects 3 consecutive J 1850 Vehicle

Battery V oltage messages indicat ing a bat tery voltage less than 9 V DC.

POSSIBLE CAUSES


VEH I C L E C H ARG I N G S YS TEM F AU L T

AD J U S TAB L E P E D AL S M O D U L E H I G H R E S I S TAN C E F U S E B + C I R C U I T



1 Wit h t he D RB I II, r ea d t h e v eh icle v olt a ge s t a t u s .

D o es t h e D R B I I I display a low voltage concern?

All

Yes → Refer to Cha rging informat ion for the relat ed symptom(s).


1.

No → G o To 2






Wait 10 seconds.


D o es t h e D R B I I I display SYS TEM U NDE R VOLTAGE DTC a ctive?

All

Yes → G o To 3

No → G o To 4

22

ADJUSTABLE PEDALS

7/21/2019 2005 RS Chassis





M ea s u r e t h e v ol t a g e o f t h e A dju s t a b le P e d a l s M od u le F u s ed B + ci r cu i t i n t h e

Adjustable P edals Module connector.I s t h er e ba t t er y v olt a ge p r es en t ?

All




1.

No → R epa ir t h e Adjus t a ble P eda ls M odu le Fu s ed B + cir cu it for h igh

resistance.


1.


NOTE: Ensure the battery is fully charged.








All



1.


23

ADJUSTABLE PEDALS

SYSTEM UNDER VOLTAGE — Continued

7/21/2019 2005 RS Chassis


Symptom:*CAN’T ADJ UST PEDALS

POSSIBLE CAUSES

VEHICLE IN REVERSE OR CRUISE CONTROL ACTIVATED

B ODY S TYLE FAULT

IN-P LANT MODE ENABLE D

ACTIVE DTC’S

ADJ USTAB LE P ED ALS SE NSOR CONNE CTOR NOT FU LLY SEATED

ADJ USTAB LE P ED ALS MOTOR FAULT

ADJ US TAB LE P ED ALS MOTOR CIR CU ITS OP EN

B US COMMUNI CATION FAULT

AD J U S TAB L E P E D AL S M O D U L E F U S E D B + C I R C U I T OP E N

AD J U S TAB L E P ED A L S M O D U L E G R O U N D C I RC U I T O PE N

I O D F U S E O P E N

AD J U S TAB L E P ED A L S S WI TC H F U S ED B + C I RC U I T O PE N

AD J U S TAB L E P ED A L S S WI TC H G RO U N D C I RC U I T O PE N


ADJ USTAB LE P ED ALS SWITCH REARWARD CIR CU IT OP EN

ADJ USTAB LE P ED ALS SWITCH FORWARD CIR CU IT OP EN



1 NOTE : Adjustable Pedals are disabled when the vehicle is in R everse orwhen the Speed Control is activated.C h e ck w h e t h er v eh i cl e i s(w a s ) i n R e ve r se a n d w h e t h er S p ee d C o n t r ol i s(w a s )

a ct iv a t ed.

Is(was) the vehicle in Reverse or is(was) Speed Control activated?

All

Yes → Correct as necessary.


1.

No → G o To 2

2 Tu rn t h e ig ni ti on on .

W it h t h e DR B I I I, t r y t o r ea d Adjus t a ble P eda ls M odu le in for ma t ion .

C a n t h e Adjus t a ble P eda ls M odu le be det ect ed by t h e D R B I I I?

All

Yes → G o To 3

No → G o To 1 9

24

ADJUSTABLE PEDALS

7/21/2019 2005 RS Chassis




W it h t h e DR B I I I, go to Module Display.

D o es t h e D R B I I I disp la y R S B OD Y STYL E ?

All

Yes → G o To 4

No → R epla ce t h e Adju s t a ble P eda ls M odu le in a ccor da n ce w it h t h e



1.

4 Wit h t he D RB I II, r ea d t h e s t a t u s of t h e I n -P la n t M ode.

I s t h e I n -P la n t M ode E n a bled?

All

Yes → Dis a ble t h e I n -P la n t mode.


1.

No → G o To 5

5 Tu rn t h e i gn it ion on .



D o es t h e D R B I I I display any DTC’s active?

All

Yes → Refer to symptom list for problems relat ed to the active DTC’s.


1.

No → G o To 6


W it h t h e DR B I I I in I n p u t s /Ou t p u t s , r ea d t h e for w a r d a n d r ea r w a r d s w it ch es .

A ct u a t e t h e A dju s t a ble P eda ls Sw it ch in t h e for w a r d a n d r ea r w a r d p os it ion s .

D o e s t h e D R B I I I

display FORWARD/REARWARD SW C LOSE D wh en switch isa ct iv a t ed?

All

Yes → G o To 7

No → G o To 11


W it h t h e DR B I I I, a c t u a t e t h e p e d a l f or w a r d a n d p ed a l r e a r w a r d .

Do the Adjustable Pedals move?

All




1.

No → G o To 8



I n s pe ct Ad ju s t a b le P e d a l s M od u l e con n e ct o r a n d t h e Ad ju s t a b le P e d a l s M ot o r

connector.

Are the connectors FULLY seated and properly plugged in?

All

Yes → G o To 9

No → Repair as necessary.


1.

25

ADJUSTABLE PEDALS

*CAN’T ADJ UST PEDALS — Continued

7/21/2019 2005 RS Chassis




Disconnect the Adjustable Pedals Motor harness connector.

Using a 12-volt test light, connect it between the Adjustable Pedals Motor Forward

a n d Ad ju s t a b le P e d a l s M ot o r R e a r w a r d c ir cu i t s a t t h e A d ju s t a b le P e d a l s M ot o rha rness connector.

W it h t h e DR B I I I, a c t u a t e t h e p e d a l f or w a r d a n d p ed a l r e a r w a r d .

Does the test light illuminate brightly for both directions?

All

Yes → R epla ce t h e Adjus t a ble P eda ls As s embly in a ccor da n ce w it h t h e



1.

No → G o To 1 0

10 Tu r n t h e i gn it i on on .

Using a 12-volt t est light, ba ck-probe betw een the Adjustable P edals Motor Forw ar d

a n d A dju s t a ble P eda ls M ot or R ea r w a r d cir cu it s a t t h e A dju s t a ble P eda ls M odu le

ha rness connector.W it h t h e DR B I I I, a c t u a t e t h e p e d a l f or w a r d a n d p ed a l r e a r w a r d .

Does the test light illuminate brightly for both directions?

All

Yes → Repair the Adjustable P edals Motor Forw ar d/Rearw ar d circuit(s)

for an open.


1.




1.

11 Tu r n t h e i g ni t i on o ff .

I n s p ect for a n op en I OD fu s e in t h e I P M .I s t h e I OD fu s e op en ?

All

Yes → Replace the fuse. If th e fuse is open ma ke sure to check for a short

t o gr ou n d.


1.

No → G o To 1 2

1 2 Tu r n t h e i g n it i on of f.

Disconnect the Adjustable Pedals Switch harness connector.

M ea s u r e t h e v olt a ge bet w een t h e Adjus t a ble P eda ls Sw it ch Fu s ed B + a n d G r ou n d

circuits (cavities 1 & 2).

I s t h er e ba t t er y v olt a ge p r es en t ?

All

Yes → G o To 1 3

No → G o To 1 7

26

ADJUSTABLE PEDALS


7/21/2019 2005 RS Chassis



1 3 Tu r n t h e i g ni t i on o ff .



W it h t h e DR B I I I

in I nputs/Outputs, monitor t he F ORWARD SW sta te.C on n ect a jump er w ir e bet w een t h e Adjus t a ble P eda ls Sw it ch Fu s ed B + cir cu it a n d

t h e Adjus t a ble P eda ls Sw it ch For w a r d cir cu it .

D o es t h e D R B I I I display FORWARD SW CLOS ED ?

All

Yes → G o To 1 4

No → G o To 1 6




W it h t h e DR B I I I in Inputs/Outputs, monitor t he R EARWARD SW sta te.

C on n ect a ju mp er w ir e bet w een t h e Adjus t a ble P eda ls Sw it ch Fu s ed B + cir cu it a n d

t h e Adjus t a ble P eda ls Sw it ch R ea r w a r d cir cu it .

D o es t h e D R B I I I

display REARWARD SW CLOS ED ?

All

Yes → R e p l a c e t h e A d j u s t a b l e P e d a l s S w i t c h i n a c c o r d a n c e w i t h t h e



1.

No → G o To 1 5




M ea s u r e t h e r es is t a n ce of t h e A dju s t a ble P eda ls Sw it ch R ea r w a r d cir cu it bet w een

the Adjustable P edals S wit ch connector an d t he Adjustable P edals Module connector.


All




1.

No → R e pa i r t h e Ad ju s t a b le P e d a l s S w i t ch R e a r w a r d ci r cu i t f o r a n

open.


1.




Measure the resistance of the Adjustable Pedals Switch Forward circuit between the

Adjustable Pedals Switch connector and the Adjustable Pedals Module connector.Is the resistance below 1.0 ohm?

All




1.

No → Repair the Adjustable Peda ls Swit ch Forw ar d circuit for an open.


1.

27

ADJUSTABLE PEDALS


7/21/2019 2005 RS Chassis





Measure the voltage between Adjustable Pedals Switch Fused B+ circuit and vehicle

body ground.I s t h er e ba t t er y v olt a ge p r es en t ?

All

Yes → G o To 1 8

No → Repair the Adjustable Peda ls Switch Fused B+ circuit for an open.


1.



M ea s u r e t h e r es is t a n ce bet w een t h e A dju s t a ble P eda ls Sw it ch G r ou n d cir cu it a n d

vehicle body g round.


All

Yes → R e p l a c e t h e A d j u s t a b l e P e d a l s S w i t c h i n a c c o r d a n c e w i t h t h e



1.

No → R epa ir t h e Adju s t a ble P eda ls Sw it ch G r ou n d cir cu it for a n open .


1.

1 9 Tu r n t h e i g n it i on o ff .


Measure the volta ge between the Adjustable Peda ls Module Fused B+ circuit an d the

Ground circuit at the Adjustable Pedals Module harness connector.


All

Yes → R efer t o s ymp t om * NO R E SP ONSE FR OM ADJ U S TAB L E P E D-

ALS ASSEMBLY in the BODY COMMUNICATION category.


1.

No → G o To 2 0



M ea s u r e t h e v olt a ge bet w een t h e Adjus t a ble P eda ls M odu le Fu s ed B + cir cu it a n d

vehicle body g round.


All

Yes → Repair th e Adjustable P edals Module Ground circuit for an open.


1.No → R e pa i r t h e Ad ju s t a b le P e d a ls M od u le F u s e d B + c ir cu i t f o r a n

open.


1.

28

ADJUSTABLE PEDALS


7/21/2019 2005 RS Chassis


Symptom:*CAN’T SET/RECALL MEMORY POSITIONS

POSSIBLE CAUSES

DTC OR IN-P LANT MODE ACTIVE

PEDALS OPERATION

B CM OP ERATION FAULT

ADJ US TAB LE P ED ALS S ENS OR

ADJ US TAB LE P ED ALS SE NS OR VOLTAG E FAULT

B CM COMMU NICATION FAULT





W it h t h e DR B I I I, r ea d t h e I n -P la n t s t a t e.

Any active DTC’s or is the In-Plant mode activated?

All

Yes → Disa ble the In-P lant mode or refer to symptom list for problems

r ela t ed t o t h e a ct ive DTC .


1.

No → G o To 2

2 At t e m pt t o a d j us t t h e p ed a l s u s in g t h e Ad ju s t a b l e P e d a l s S w i t c h .

Do t h e p eda ls a dju s t ?

All

Yes → G o To 3

No → R efer t o * C A N’T ADJ U S T P E D AL S in for ma t ion for t h e r ela t ed

symptom(s).


1.

3 At t e m pt t o s et a n d r e ca l l ot h e r m e m or y f un ct i on s in t h e v eh i cl e.

Can other vehicle memory functions be set and recalled OK?

All

Yes → G o To 4

No → C h eck DTC ’s in t h e B C M a n d r efer t o B ODY in for ma t ion for t h e

relat ed sy mptom(s).

P erform ADJ US TAB LE P ED ALS VERIFI CATION TES T - VER1.

29

ADJUSTABLE PEDALS

7/21/2019 2005 RS Chassis





W it h t h e DR B I I I in Sensors, read the pedal position voltage.

M on it or t h e p eda l p osit ion v olt a ge w h ile a dju st in g p eda ls for w a r d a n d r ea r w a r d.I s t h er e a n y ch a n ge of v olt a ge?

All

Yes → G o To 5

No → Check for proper Adjustable Peda ls Sensor installa tion and align-

ment. Check wiring and connectors. Repair as necessary.


1.

5 D o es t h e p ed a l pos i t ion v ol t a g e i n cr e a s e w h e n m ov in g f or w a r d a n d d e cr e a s e w h e n

mov in g r ea r w a r d?

All

Yes → G o To 6

No → C h e ck A d ju s t a b l e P e d a ls S e n s or a n d AP M p in ou t s . R e pa i r a s

necessary.P erform ADJ US TAB LE P ED ALS VERIFI CATION TES T - VER

1.

6 C a n t h e D RB II I com m un ica t e w it h t h e B C M? All

Yes → R epla ce t h e Adju s t a ble P eda ls M odu le in a ccor da n ce w it h t h e



1.

No → Refer to B ODY informat ion for the relat ed symptom(s).


1.

30

ADJUSTABLE PEDALS

*CAN’T SET/RECALL MEMORY POSITIONS — Continued

7/21/2019 2005 RS Chassis


Symptom:BUS SYSTEM COMMUNICATION FAILURE


BUS SYSTEM COMMUNICATION FAILURE

When Monitored: Ignit ion ON, continuously.

Set Condition: When the CAB does not receive a messa ge from the inst rument cluster for

10 seconds.

POSSIBLE CAUSES

INTERMITTENT CONDITION

ELECTRO-MECHANICAL INSTRUMENT CLUSTER DTC PRESENT

B U S C I R C U I T O P E N

CAB - INTERNAL FAILURE



W it h t h e DR B I I I, r ea d DTC s .

W it h t h e DR B I I I, r ea d Fr eeze Fr a me in for ma t ion .

W it h t h e DR B I I I, erase DTCs.




D o es t h e D R B I I I dis pla y B U S SYSTE M C OM M U NI C ATI ON FAI L U R E ?

All

Yes → G o To 2

No → G o To 4


W it h t h e DR B I I I, r ea d E M I C DTC s .

D o es t h e D R B I I I dis p la y NO A B S M E SSA G E R E C E I V E D?

All

Yes → R efer t o s ympt om NO AB S M E SS AG E R E C E I V E D in t h e B ODY/

INSTRUMENT CLUSTER category.

P erform AB S VERIFI CATION TES T - VER 1.

No → G o To 3

31

BRAKES (CAB)

7/21/2019 2005 RS Chassis




Disconnect the negative (-) battery cable.

Disconnect the CAB harness connector.

NOTE : check connector - Clean/repair as necessary.M ea s u r e t h e r es ist a n ce of t h e B u s cir cu it bet w een t h e C A B con n ect or a n d t h e D a t a

Link C onnector (DLC ).

Is the resistance below 5.0 ohms?

All

Yes → R epla ce t h e C on t r oller A n t ilock B r a k e in a ccor da n ce w it h t h e



No → Repair the B us circuit for an open.



Visually in spect t he relat ed w iring ha rness. Look for an y cha fed, pierced, pinched, or




All




32

BRAKES (CAB)

BUS SYSTEM COMMUNICATION FAIL URE — Continued

7/21/2019 2005 RS Chassis


Symptom:CAB INTERNAL FAILURE


CAB INTERNAL FAILURE

When Monitored: Ignit ion on. The CAB m onitors its interna l microprocessors for correct

operation.

S e t C o n di t i on : I f t h e C AB d et e ct s a n i n t e r na l f a u l t , t h e D TC i s s e t .

POSSIBLE CAUSES


DAMAG ED CAB/CAB HARNESS CONNEC TOR

C AB - G R O U N D C I R C U I T OP E N

ABS VALVE FUSED B(+ ) CIRCUIT OPEN

AB S P U M P F U S E D B ( + ) C I R C U I T O P E N

CAB - INTER NAL FAU LT








D o es t h e D R B I I I display CAB INTERNAL FAILURE?

All

Yes → G o To 2

No → G o To 6



Inspect the CAB/CAB h ar ness connector for da ma ge.

Is there any broken, bent, pushed out, corroded or spread terminals?

All



No → G o To 3



Using a 12-volt test light connected to 12-volts, probe the CAB harness connector

ground circuits.

Did t h e t es t l igh t i l lu min a t e?

All

Yes → G o To 4

No → Repair the CAB G round circuit for an open.


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Us ing a 12-volt test ligh t connected to ground, probe the AB S Va lve Fused B (+ ) circuit

at the CAB harness connector.Did t h e t es t l igh t i l lu min a t e?

All

Yes → G o To 5

No → Repair t he AB S Valve Fused B (+ ) circuit for an open.




U s in g a 12-v olt t es t l igh t con n ect ed t o gr ou n d, p r obe t h e A B S P u mp Fu s ed B (+ )

circuit at the CAB harness connector.


All




No → Repair th e AB S P ump Fused B (+ ) circuit for an open.



Visually inspect th e relat ed w iring ha rness. Look for an y cha fed, pierced, pinched, or






All




34

BRAKES (CAB)

CAB INTERNAL FAILURE — Continued

7/21/2019 2005 RS Chassis


Symptom:CLUSTER LAMP FAILURE


CLUSTER LAMP FAILURE

When Monitored: Key ON. After K ey-ON bulb check.

S e t C on d i t ion : Wh e n t h e i n s t r u m en t cl u st e r i n f or m s t h e C AB t h a t t h e c lu s t er ca n n o t

t u r n o n t h e AB S L a m p .

POSSIBLE CAUSES

I N S TRU M EN T C L U S TER O R AB S D TC P RES EN T

INSTRUMENT CLUSTER

CAB - NO D TC SIG NAL TO THE INSTRU MENT CLUS TER

C A B - N O K EY-O N B U L B C H EC K S I G N AL

CAB - PE RMANENT FAULT SIG NAL




Ar e t h er e a n y I n s t r u men t C lu s t er or AB S DTC s p r es en t ?

All

Yes → Refer to the a ppropriat e cat egory for the relat ed symptom(s).


No → G o To 2


Perform the Key-on Bulb Check.

Does t h e A B S Wa r n in g I n dica t or l igh t a n d t h en go ou t a f t er a few s econ ds?

All

Yes → G o To 3

No. Light remains after bulb check.

R epla ce t h e C on t r oller A n t ilock B r a k e in a ccor da n ce w it h t h e


P erform ABS VERIFI CATION TES T - VER 1.

No. Indicator never comes on.

G o To 4

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3 NOTE: The DRBIII communication with the CAB must be operational forthe result of this test to be valid.Turn the ignition off.

Remove AB S Valve fuse.Perform the Key-on Bulb Check.

Does t h e AB S I n dica t or r ema in on a f t er t h e bu lb ch eck ?

All

Yes → Test Complete.

No → R epla ce t h e C on t r oller A n t ilock B r a k e in a ccor da n ce w it h t h e



4 NOTE: The following steps will initiate the Instrument Cluster self test.Turn the ignition off.

P r es s a n d h old t h e odomet er r es et bu t t on .

Turn t he ignition to RU N.

Obs er v e t h e I n s t r u men t C lu s t er in dica t or s.

Release the odometer reset button.Did t h e AB S I n dica t or i llu min a t e du r in g t h e I n s t r u men t C lu s t er s elf t es t ?

All




No → R epla ce t h e I n s t r u men t C lu s t er in a ccor da n ce w it h t h e S er v ice

I n for ma t ion .


36

BRAKES (CAB)

CLUSTER LAMP FAILURE — Continued

7/21/2019 2005 RS Chassis


Symptom:INCORRECT TONE WHEEL FAILURE


INCORRECT TONE WHEEL FAILURE

When Monit ored: Ign ition ON. Vehicle speed above 40 km/h (25 mph) for 2 minut es.

Set C ondition: When the CAB detects a n unexpected w heel speed condition ca used by a

tire size that does not meet vehicle specification.

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Symptom List:LEFT FRONT SENSOR CIRCUIT FAILURELEFT REAR SENSOR CIRCUIT FAILURERIGHT FRONT SENSOR CIRCUIT FAILURERIGHT REAR SENSOR CIRCUIT FAILURE

Test Note: All symptoms listed above are diagnosed using thesame tests.Thetitle for the tests will be LEFT FRONT SENSOR CIRCUI TFAILURE.


LEFT FRONT SENSOR CIRCUIT FAILURE

When Monitored: Ignit ion on. The CAB m onitors t he w heel speed circuit continuously.

S e t C on d i t ion : I f t h e C AB d et e ct s a n op en or s h or t e d w h e el s p ee d s e n sor ci r cu i t , t h e

Dia gnost ic Trouble Code (DTC) w ill set.

LEFT REAR SENSOR CIRCUIT FAILURE




RIGHT FRONT SENSOR CIRCUIT FAILURE




RIGHT REAR SENSOR CIRCUIT FAILURE




POSSIBLE CAUSESINTERMITTENT CONDITION

W HEEL S PEED S EN S O R O R C O N N EC T O R D A M A G E

WH E E L S P E E D S E N S O R S I G N AL C I R C U I T FAU L T

WHE EL S P EE D S E N S O R 12 VO LT S U P P LY C I RC U I T S HO RT TO G RO U N D

WH E E L S P E E D S E N S O R 1 2 VO LT S U P P L Y C I R C U I T OP E N

WH E E L S P E E D S E N S O R S I G N AL C I R C U I T S H O R T TO G R O U N D

WH E E L S P E E D S E N S O R S I G N AL C I R C U I T O P E N

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POSSIBLE CAUSES

CAB - 12 VOLT SU P P LY C IRC UI T FAULT

CAB - SIGNAL CIRCUIT FAULT

WHE EL S P EE D S E N S O R 12 VO LT S U P P LY S H O RT TO G RO U N D

WHE EL S P EE D S EN S O R S I G N AL C I RC U I T I N O PE RATI V E




W it h t h e DR B I I I, r ea d t h e Fr eez e Fr a me in for ma t ion .





NOTE: The CAB must sense all four wheels at 25km/h (15 mph) before it will

extinguish the ABS indicators.D o es t h e D R B I I I dis p la y SE NSOR C I R C U I T FA I L U R E ?

All

Yes → G o To 2

No → G o To 1 3


Inspect th e CAB connector, a ffected Wheel Speed S ensor, a nd affected Wheel S peed

Sensor connector.

Is the affected Wheel Speed Sensor or any of the connectors damaged?

All



No → G o To 3


Disconnect the affected Wheel S peed Sensor connector.

Note: Check connector - Clean/repair as necessary.Turn the ignition on.

Measure t he voltage between a ffected Wheel Speed S ensor 12 Volt Supply circuit a nd

ground.

Is the voltage above 10 volts?

All

Yes → G o To 6

No → G o To 4



Disconnect the affected Wheel S peed Sensor connector.Using a 12-volt test light connected t o 12-volts, probe the a ffected Wheel Speed

Sensor 12 Volt Supply circuit.

Does t h e t es t l igh t i l lu min a t e?

All

Yes → Repa ir the a ffected Wheel Speed Sensor 12 Volt Supply circuit for

a s h or t t o gr ou n d.


No → G o To 5

39

BRAKES (CAB)

LEFT FRONT SENSOR CIRCUIT FAILURE — Continued

7/21/2019 2005 RS Chassis






Connect a jumper w ire betw een a ffected Wheel Speed S ensor 12 Volt Supply circuita n d gr ou n d.

Using a 12-volt test light connected t o 12-volts, probe the a ffected Wheel Speed

Sensor 12 Volt Supply circuit.


All

Yes → G o To 6

No → Repa ir the a ffected Wheel Speed Sens or 12 Volt Supply circuit for

an open.




NOTE : Check connector - Clean/repair as necessary.

Turn the ignition on.Measure th e volta ge between a ffected Wheel Speed Sensor Signa l circuit an d ground.

I s t h e v olt a ge a bov e 1 v olt ?

All

Yes → Repair the a ffected Wheel Speed Sensor Signa l circuit for a short

to voltage.


No → G o To 7





Sensor Signal circuit .


All

Yes → Repair the a ffected Wheel Speed Sensor Signa l circuit for a short

t o gr ou n d.


No → G o To 8




C on n ect a ju mp er w ir e bet w een a f fect ed Wh eel S p eed S en s or Sign a l cir cu it a n d

ground.


Sensor Signal circuit .


All

Yes → G o To 9

No → Repair th e affected Wheel Speed Sensor Signa l circuit for an open.


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R emov e t h e C AB h a r n es s s t r a in r elief t o a cces s w ir es .

Reconnect t he C AB ha rness connector.

Turn the ignition on.Measure t he voltage between a ffected Wheel Speed S ensor 12 Volt Supply circuit a nd

ground.

I s t h e v olt a ge a bov e 10 v olt s ?

All

Yes → G o To 1 0





R emov e t h e C AB h a r n es s s t r a in r elief t o a cces s w ir es .



Measure t he voltage between a ffected Wheel Speed S ensor 12 Volt Supply circuit a ndaffected Wheel Speed Sensor Signal circuit .

Is the voltage above 10 volts?

All

Yes → G o To 11




11 Tu r n t h e i g ni t i on o ff .

Reconnect ALL affected Wheel Speed Sensor circuit connectors.



Measure t he voltage of th e affected Wheel Speed Sensor 12 Volt Supply circuit in t he

affected Wheel S peed Sensor connector while reconnecting the sensor connector.Did t h e a f fect ed W h eel Sp eed Sen s or 12 V olt Su p p ly cir cu it dr op v olt a ge t o 0 DC

volts?

All

Yes → Replace the affected Wheel Speed Sensor in accorda nce with th e



No → G o To 1 2


Reconnect ALL affected Wheel Speed Sensor circuit connectors.


M ea s u r e t h e DC v olt a ge of t h e W h eel Sp eed Sen s or Sign a l cir cu it in t h e a f fect ed

Wheel Speed Sensor connector.

Slow ly r ot a t e t h e w h eel.Does the DC voltage toggle between 1.6 volts to .8 volts?

All

Yes → G o To 1 3

No → Replace the affected Wheel Speed Sensor in accorda nce with t he



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All




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Symptom List:LEFT FRONT WHEEL SPEED SIGNAL FAILURELEFT REAR WHEEL SPEED SIGNAL FAILURERIGHT FRONT WHEEL SPEED SIGNAL FAILURERIGHT REAR WHEEL SPEED SIGNAL FAILURE

Test Note: All symptoms listed above are diagnosed using thesame tests.The title for the tests will be LEFT FRONT WHEEL SPEEDSIGNAL FAILURE.


LEFT FRONT WHEEL SPEED SIGNAL FAILURE

When Monitored: Wheel speed are checked and verified a t drive off a nd continuously

thereafter.

Set Condit ion: I f , during an AB S stop, the CAB comma nds any valve solenoid on for a n

e xt e n de d l en g t h of t i m e, a n d d oe s n ot s ee a cor r e sp on d in g w h e e l s p ee d ch a n g e , t h e

Diagnostic Trouble Code (DTC) is set . The DTC can also set i f t he signal is m issing or

errat ic .

LEFT REAR WHEEL SPEED SIGNAL FAILURE


thereafter.


e xt e n de d l en g t h of t i m e, a n d d oe s n ot s ee a cor r e sp on d in g w h e e l s p ee d ch a n g e , t h eDiagnostic Trouble Code (DTC) is set . The DTC can also set i f t he signal is m issing or

errat ic .

RIGHT FRONT WHEEL SPEED SIGNAL FAILURE


thereafter.




errat ic .

RIGHT REAR WHEEL SPEED SIGNAL FAILURE


thereafter.




errat ic .

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POSSIBLE CAUSES

WH E E L S P E E D S I G N AL F AI L U R E D TC P R E S E N T

AF F E C TED WHE EL S P EE D S EN S O R S I G N AL I N O P ERATI V E

AF F E C TED WHE EL S P EE D S EN S O R C O N N EC TO R D AM AG E D

AF F E C TED WHE EL S P EE D S EN S O R TO N E WHE EL D AM AG ED

AF F E C TED WHE EL S P EE D S EN S O R AI R G AP F AU L T

WHE EL B E ARI N G F AU L T

B R AK E L I N I N G F AU L T

AF F E C TED WHE EL S P EE D S EN S O R C I RC U I T EL EC TRI C A L FAU L T




W it h t h e DR B I I I, r ea d Fr eeze Fr a me in for ma t ion .

NOTE: The CAB must sense ALL 4 wheels at 25 km/h (15 mph) before it willextinguish the ABS indicators.D oe s t h e D R B I I I di sp la y WH E E L S P E E D S I G N AL F AI L U R E a n d S E N S O R

C I R C U I T FAI L U R E ?

All

Yes → Refer to the a ffected Wheel Speed SE NSOR C IRCU IT FAILU RE

for the related symptom(s).


No → G o To 2


Wit h t h e D R B I I I in Sensors, monitor ALL t he Wheel Speed Sensor Signa ls wh ile an

a s s is t a n t dr iv es t h e v eh icle.

Slowly accelera te a s str aigh t a s possible from a stop to 24 km/h (15 mph).

Is t he a ffected Wheel Speed S ignal showing 0 km/h (0 mph)?

All

Yes → G o To 3

No → Th e c on d i t ion i s n o t p r es en t a t t h i s t i m e . M o ni t or D R B I I I

p a r a met er s w h ile w igglin g t h e r ela t ed w ir in g h a r n es s . R efer t o

a n y Tech n ica l Ser v ice B u llet in s (TSB ) t h a t ma y a p p ly. Vis u a lly

in s pect t h e r ela t ed w ir in g h a r n es s a n d con n ect or t er min a ls .


3 Tu r n t h e i gn it i on of f.Inspect th e CAB connector, a ffected Wheel Speed S ensor, a nd affected Wheel Speed

Sensor connector.

Is the Wheel Speed Sensor or any connector damaged?

All



No → G o To 4

44

BRAKES (CAB)

LEFT FRONT WHEEL SPEED SIGNAL FAILURE — Continued

7/21/2019 2005 RS Chassis



4 Tu r n i gn it i on of f.

Inspect th e a ffected Tone Wheel for da ma ged, missing teeth, cracks, or looseness.

NOTE :The Tone Wheel teeth should beperfectly square,not bent,or nicked.

Is the affected Tone Wheel OK?

All

Yes → G o To 5

No → Replace the Tone Wheel in accorda nce with t he Service Informa-

tion.



U s in g a Feeler G a u ge, mea s u r e t h e a f fect ed W h eel Sp eed S en s or A ir G a p .

NOTE : Refer to the appropriate service information, if necessary, forprocedures or specifications.I s t h e A ir G a p OK?

All

Yes → G o To 6

No → Repair as necessary.P erform AB S VERIFI CATION TES T - VER 1.


Inspect the wheel bearings for excessive runout or clearance.

NOTE : Refer to the appropriate service information, if necessary, forprocedures or specifications.I s t h e bea r in g clea r a n ce OK ?

All

Yes → G o To 7

No → Repair as necessary.



Visually inspect brakes for locking up due to lining contamination or overheating.Inspect all components for defects which may cause a Signal DTC to set.

I s a n y compon en t da ma ged?

All



No → R ef er t o s y mp tom S E N S O R C I R C U I T FAI L U R E f or f ur t h er

diagnostics.


45

BRAKES (CAB)

LEFT FRONT WHEEL SPEED SIGNAL FAILURE — Continued

7/21/2019 2005 RS Chassis


Symptom:PUMP CIRCUIT FAILURE


PUMP CIRCUIT FAILURE

When Monitored: Ignit ion on. The CAB comma nds t he pump on at 20 km/h (12 mph) to

check its operation, if the brake switch is not applied. If the brake is applied, the test will

ru n a t 40 km/h (25 mph).

Set Condition: The DTC is stored w hen the CAB d etects: 1) Improper volta ge decay a fter

the pump w a s tur ned off. 2) P ump not energized by the CAB, but volta ge is present for 3.5

seconds. 3) Pump is turned on by t he CAB, but without sufficient voltage to operate it .

POSSIBLE CAUSES

CAB - PUMP MOTOR RUNNING CONTINUOUSLY

AB S P U M P F U S E

ABS PUMP MOTOR INTERMITTENT DTC


AB S P UMP FU SE D B (+ ) CIRCU IT INTERMI TTENT SHORT TO G ROUND

AB S P U M P F U S ED B ( + ) C I RC U I T S HO RT TO G RO U N D


AB S P UMP MOTOR INOP ERATIVE

A B S PU M P M O T O R O PEN

AB S P U M P M O TO R B (+ ) C I RC U I T O PE N

AB S P U M P M OTO R G R O U N D C I R C U I T OP E N





Monitor the ABS Pump Motor for continuous operation.

NOTE: The CAB must sense ALL wheels at 25 km/h (15 mph) before it will

extinguish the ABS indicators.I s t h e AB S P u m p M ot or r u n n in g con t in u ou s ly?

All




No → G o To 2

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, erase DTCs.Turn the ignition off.


W it h t h e DR B I I I, a ct u a t e t h e AB S P u m p M ot or.

Did t h e AB S P u mp M ot or oper a t e?

All

Yes → G o To 3

No → G o To 4




Make sure the Pump Motor connecter is secure.


out, or corroded terminals.Refer to any Hotline letters or Technical S ervice Bulletins t ha t m ay apply.


All





R emov e a n d in s pect t h e AB S P u mp fu s e.

I s t h e A B S P u m p fu s e op en ?

All

Yes → G o To 5

No → G o To 8


Visually inspect the ABS Pump Fused B(+ ) circuit in the wiring harness.

L ook for a n y s ign of a n in t er mit t en t s h or t t o gr ou n d.

I s t h e w ir in g h a r n es s OK?

All

Yes → G o To 6

No → Repair th e AB S P ump Fused B (+ ) circuit for a short to ground.




Ch eck connectors - Clea n/repa ir a s necessa ry.

U s in g a 12-v olt t es t l igh t con n ect ed t o 12-v olt s , p r obe t h e A B S P u m p F u s ed B (+ )

circuit fuse terminal.Does t h e t es t l igh t i l lu min a t e?

All

Yes → R epa ir t h e AB S P u m p Fu s ed B (+ ) cir cu it for a s h or t t o gr ou n d.


No → G o To 7

47

BRAKES (CAB)

PUMP CIRCUIT FAILURE — Continued

7/21/2019 2005 RS Chassis





U s in g a 12-v olt t es t l igh t con n ect ed t o 12-v olt s , p r obe t h e A B S P u m p F u s ed B (+ )

circuit fuse terminal.Does t h e t es t l igh t i l lu min a t e?

All




No → Replace the AB S P ump fuse. If the fuse is open ma ke sure to check

for a short to ground.




I n s p ect t h e C AB a n d C AB h a r n es s con n ect or for da ma ge.

Is there any broken, bent, pushed out, corroded, or spread terminals?

All



No → G o To 9


R ein s t a ll t h e AB S P u mp fu s e.

Disconnect t he ABS P ump Motor connector.


C on n ect a 10 ga u ge 40 a mp fu s ed ju mper w ir e bet w een t h e AB S P u m p Fu s ed B (+ )

termina l in the CAB ha rness connector to the AB S P ump Motor connector RED w ired

t er min a l.

C on n ect a 10 ga u ge ju mp er w ir e bet w een t h e G r ou n d cir cu it t er min a l in t h e C A B

h a r n es s con n ect or t o t h e A B S P u mp M ot or con n ect or B L AC K w ir ed t er min a l.


All




No → G o To 1 0




C o nn e ct a 1 0 g a u g e 4 0 a m p f u se d j u m pe r w i r e b e t w ee n t h e AB S P u m p M ot or

con n ect or R E D w ir ed t er min a l a n d a n a lt er n a t e 40 a mp ca p a ble B (+ ) s ou r ce.

C on n ect a 10 ga u ge ju mper w ir e bet w een t h e A B S P u mp M ot or con n ect or B L AC K

w ir ed t er min a l a n d gr ou n d


All

Yes → G o To 11

No → R ep la c e t h e H y d r a u li c C o n t rol U n i t i n a c cor d a n ce w i t h t h e



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11 Tu r n t h e i g ni t i on of f .



C on n ect a 10 ga u ge 40 a mp fu s ed ju mper w ir e bet w een t h e AB S P u m p Fu s ed B (+ )termina l in the CAB ha rness connector to the AB S P ump Motor connector RED w ired

t er min a l.

C on n ect a 10 ga u ge ju mper w ir e bet w een t h e A B S P u mp M ot or con n ect or B L AC K

w ir ed t er min a l a n d gr ou n d.


All

Yes → Repair th e ABS P ump Motor Fused B(+ ) circuit for an open.


No → Repair the AB S P ump Motor Ground circuit for an open.


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Symptom:SYSTEM OVER VOLTAGE


SYSTEM OVER VOLTAGE

When Monitored: Ignit ion on. The CAB monitors th e Fused B (+ ) circuit at all t imes for

proper system voltage.

Set Condit ion: I f t he volta ge is a bove 16.5 volts for great er tha n 420 milliseconds (ms),

the Dia gnostic Trouble Code (DTC) is set.

POSSIBLE CAUSES


B ATTERY CH ARG ER CONNEC TED

F U S ED I G N I TI O N S WI TC H O U TP U T (RU N ) C I RC U I T HI G H








, era se D TC’s.Turn the ignition off.


S t a r t t h e e n g in e .


D o es t h e D R B I I I display SYS TEM OVER VOLTAGE ?

All

Yes → G o To 2

No → G o To 7

2 I s a ba t t er y ch a r ger con n ect ed t o t h e veh icle? All

Yes → E n s u r e t h e ba t t er y is fu lly ch a r ged.


No → G o To 3

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Disconnect the CAB connector.

Note: Check connector - Clean/repair as necessary.

S t a r t t h e e n g in e .Raise engine speed a bove 1,800 RP M’s

M ea s u r e t h e v ol t a g e b et w e e n F u s ed I g n i t ion S w i t c h O u t pu t (R U N ) c i r cu i t a n d

ground.

Is the voltage above 16.5 volts ?

All

Yes → R efer t o a p p r opr ia t e s er v ice in for ma t ion for C h a r gin g Sys t em

t es t in g a n d r epa ir .


No → G o To 4



Note: Check connector - Clean/repair as necessary.

I n s p ect t h e C AB a n d C AB h a r n es s con n ect or for da ma ge.Is there any broken, bent, pushed out, corroded, or spread terminals?

All



No → G o To 5



Note: Check connector - Clean/repair as necessary.Using a 12-volt test light connected t o 12-volts, probe th e G round circuits.


All

Yes → G o To 6

No → Repair the G round circuit for an open.P erform AB S VERIFI CATION TES T - VER 1.




W it h t h e DR B I I I in S en s or s , r ea d t h e ign it ion v olt a ge.

D o es t h e D R B I I I display ignition voltage above 16 volts?

All




No → G o To 7

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E n s u r e t h e ba t t er y is fu lly ch a r ged.



U s in g t h e w ir in g dia gr a m/s ch ema t ic a s a gu ide, in s p ect t h e w ir in g a n d con n ect or s .


All




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Symptom:SYSTEM UNDER VOLTAGE


SYSTEM UNDER VOLTAGE

Wh e n M o n it o r ed : I g n i t ion on . Th e C AB m on i t or s t h e F u s ed I g n i t ion S w i t ch O u t pu t

circuit volta ge a bove 10 km/h (6 mph) for pr oper s yst em volta ge.

Set C ondition: If th e volta ge is below 9.5 volts, th e Diag nostic Trouble Code (DTC) is set.

POSSIBLE CAUSES



RU NNIN G B ATTERY VOLTAG E LOW


F U S ED I G N I TI O N S WI TC H O U TP U T (RU N ) C I RC U I T O PEN








S t a r t t h e e n g in e .

Drive the vehicle a bove 16 km/h (10 mph) for a t least 20 seconds.

Stop the vehicle


D o es t h e D R B I I I display SYS TEM U NDE R VOLTAGE ?

All

Yes → G o To 2

No → G o To 6

2 E ngin e R un nin g.

M ea s u r e t h e ba t t er y v olt a ge.

I s t h e ba t t er y v olt a ge below 10 v olt s ?

All

Yes → R efer t o a p pr opr ia t e s er v ice in for ma t ion for ch a r gin g s ys t emt es t in g a n d r epa ir .


No → G o To 3

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Is there any broken, bent, pushed out, corroded, or spread terminals?

All



No → G o To 4



Using a 12-volt test light connected t o 12-volts, probe th e G round circuits.


All

Yes → G o To 5

No → Repair the G round circuit for an open.



U s in g a 12-v olt t es t l igh t con n ect ed t o gr ou n d, p r obe t h e Fu s ed I gn it ion S w it ch

Output (RUN) circuit .


All




No → R ep a ir t h e Fu s ed I gn it ion Sw it ch Ou t p u t (R U N) cir cu it for a n

open.



Visually inspect th e relat ed w iring ha rness. Look for an y cha fed, pierced, pinched, orp a r t ia lly br oken w ir es.




E n s u r e t h e ba t t er y is fu lly ch a r ged.



U s in g t h e w ir in g dia gr a m/s ch ema t ic a s a gu ide, in s p ect t h e w ir in g a n d con n ect or s .


All




54

BRAKES (CAB)

SYSTEM UNDER VOLTAGE — Continued

7/21/2019 2005 RS Chassis


Symptom:VALVE POWER FEED FAILURE


VALVE POWER FEED FAILURE

When Monitored: Ignit ion ON. AB S P ower Relay closed. Va lve comma nd for a pa rt icular

solenoid not present.

Set C ondit ion: Low feedback voltage from the low side of a ll the solenoids.

POSSIBLE CAUSES


ABS VALVE FUSE

AB S VALVE F U S ED B ( + ) S U P P LY C I RC U I T OP EN

ABS VALVE FUSED B(+ ) CIRCUIT OPEN

AB S VALVE FU SE D B (+ ) CIRCU IT INTERMI TTENT SH ORT TO G ROUND

AB S VALVE FU SE D B (+ ) CIRC UI T SH ORT TO G ROUND




TEST ACTION APPLICABILITY 1 Tu rn t h e ig ni ti on on .






D o es t h e D R B I I I display VALVE POWER FEED FAILURE?

All

Yes → G o To 2

No → G o To 1 0


Remove and Inspect the ABS Valve fuse.

Is the ABS Valve fuse open?

All

Yes → G o To 3

No → G o To 6

55

BRAKES (CAB)

7/21/2019 2005 RS Chassis




Visually in spect t he AB S Valve Fused B (+ ) circuit in t he w iring ha rness. Look for an y

s ign of a n in t er mit t en t s h or t t o gr ou n d.

I s t h e w ir in g h a r n es s OK?

All

Yes → G o To 4

No → Repair t he AB S Valve Fused B (+ ) circuit for a short to ground.




Note: Check connector - Clean/repair as necessary.Using a test light connected to 12 volts, probe th e AB S Valve F used B (+ ) circuit fuse

t er min a l.


All

Yes → Repair t he ABS Valve Fused B (+ ) circuit for a short t o ground.


No → G o To 5



NOTE: The CAB harness connector must be reconnected for the results of this test to be valid.Using a test light connected to 12 volts, probe th e AB S Valve F used B (+ ) circuit fuse

t er min a l.


All




No → Replace the AB S Valve Fused B (+ ) fuse. If the fuse is open ma kesure to check for a short to ground.





Is there any broken, bent, pushed out, corroded or spread terminals?

All



No → G o To 7


Using a 12-volt test light connected to ground, probe the B(+ ) supply at the ABS Valvefu s e t er min a l.

Did t h e t es t l igh t i l lumin a t e?

All

Yes → G o To 8

No → Repair t he AB S Valve Fused B (+ ) supply circuit for a n open.


56

BRAKES (CAB)

VALVE POWER FEED FAILURE — Continued

7/21/2019 2005 RS Chassis



8 R ei n st a l l t h e AB S Va l ve f us e.


Us ing a 12-volt test ligh t connected to ground, probe the AB S Va lve Fused B (+ ) circuit

at the CAB harness connector.Did t h e t es t l igh t i l lu min a t e?

All

Yes → G o To 9

No → Repair t he AB S Valve Fused B (+ ) circuit for an open.



Using a 12-volt test light connected to 12-volts, probe the ground circuits at the CAB

ha rness connector.


All




No → Repair the CAB G round circuit for an open.



Visually inspect th e relat ed w iring ha rness. Look for an y cha fed, pierced, pinched, or






All




57

BRAKES (CAB)

VALVE POWER FEED FAILURE — Continued

7/21/2019 2005 RS Chassis


Symptom:*BRAKE LAMP SWITCH INOPERATIVE

POSSIBLE CAUSES

C H EC K B RA K E L A MP S WI TC H O U TP U T

B RA K E L A M P S W I T C H B + O PEN

BRAKE LAMP SWITCH OPEN

B R AK E L AM P S WI TC H O U TP U T C I RC U I T S HO RT O R O P EN

CAB -- INTERNAL OPEN


1 Wit h t he D RB I II in I n p u t s /Ou t p u t s , r ea d t h e B r a k e L a mp Sw it ch s t a t e.

P r es s a n d r elea s e t h e br a k e p eda l.

D o es t h e D R B I I I d is pl a y P R E S S E D a n d R E L E A S E D ?

All

Yes → Th e B r a k e L a mp Sw it ch is OK.


No → G o To 2

2 D i s con n e ct t h e B r a k e L a m p S w i t c h h a r n e s s con n e ct o r.

Using a 12-volt test light connected to ground, check the Brake Lamp Switch Fused

B + cir cu it .

Does t h e t es t l igh t i l lu min a t e br igh t ly ?

All

Yes → G o To 3

No → R epa ir t h e B r a k e L a mp Sw it ch Fu s ed B + cir cu it for a n open .


3 D i s con n e ct t h e B r a k e L a m p S w i t c h h a r n e s s con n e ct o r.

C on n ect a ju mper w ir e bet w een t h e B r a k e L a mp Sw it ch B + a n d B r a k e L a mp Sw it ch

Output circuits.

W it h t h e DR B I I I in I n p u t s /Ou t p u t s , r ea d t h e B r a k e L a mp Sw it ch s t a t e.

D o es t h e D R B I I I d is pl a y P R E S S E D ?

All

Yes → R epla ce t h e B r a k e L a mp Sw it ch in a ccor da n ce w it h t h e Ser v ice

I n for ma t ion .


No → G o To 4

4 D i s con n e ct t h e C AB h a r n e s s c on n e ct o r.

Dis con n ect t h e B r a k e L a mp S w it ch h a r n es s con n ect or .

C h eck t h e B r a k e L a mp Sw it ch Ou t p u t cir cu it for a s h or t t o v olt a ge a n d for a n open .

I s t h e B r a k e L a mp S w it ch Ou t p u t cir cu it s h or t ed or open ?

All

Yes → R e pa i r t h e B r a k e L a m p S w i t ch O u t p u t c ir cu i t f or a s h or t t o

voltage or an open.





58

BRAKES (CAB)

7/21/2019 2005 RS Chassis


Symptom:*TRAC OFF INDICATOR NEVER/ALWAYS ON

POSSIBLE CAUSES

TRAC O F F S W G RO U N D O PE N

TRAC OFF SWITCH OPE N

TRAC O F F S WI TC H S E N S E C I RC U I T S HO RT TO B + O R O PE N

B CM -- NO TRAC OFF MES SAGE

CL U S TE R I NTE RNAL FAULT-- TRAC OF F I ND IC ATOR I NOP E RATIVE

CLUSTER-PERMANENT TRAC OFF INDICATOR

TRAC OFF SWITCH INTERNAL SHORT

TRAC OFF SWITCH SENSE CIRCUIT SHORT TO GROUND

B CM -- P ERMANENT TRAC OFF MES SAGE


1 Note: If any DTC’s are present, they must be repaired prior to performingthis test.Turn the ignition off.


Observe the TRAC OFF indicator.

Did the TRAC OFF indicator come on for several seconds then go out?

All

Yes → G o To 2

No. TRAC OFF Indicat or does not come on.

G o To 5

No. TRAC OFF Indicator does not go out.

G o To 6

2 D i s con n e ct t h e TR AC OF F S w i t ch h a r n es s con n e ct or .

Using a 12-volt test light connected to 12-volts, check the TRAC OFF Switch Ground

circuit.


All

Yes → G o To 3

No → Repair the TRAC OFF Sw itch Ground circuit for an open.



Disconnect the TRAC OFF Switch harness connector.


C on n e ct a n d d i sc on n e ct a ju m p er w i r e b e t w e en TR AC O F F S w i t c h G r ou n d a n d

TRAC OFF Switch Sense circuits.

Does t h e TR AC OFF I n dica t or l igh t a n d t h en go ou t ?

All

Yes → Replace the TRAC OFF sw itch.


No → G o To 4

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BRAKES (CAB)

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Turn the ignition on.C h eck t h e TR AC OFF Sw it ch Sen s e cir cu it for s h or t t o B + a n d for a n op en .

Is the Sense circuit shorted or open?

All

Yes → Repair the TRAC OFF Sw itch Sense circuit for a short to bat tery

or for an open.


No → Replace the B ody Control Module in accorda nce wit h the Service

I n for ma t ion .



NOTE : The purpose of this test is to perform the I nstrument Cluster self test.

Dep r es s a n d h old t h e Odomet er R es et B u t t on .Tu r n t h e Key fr om OFF t o ON a n d t h en ba ck t o OFF.

R elea s e t h e Odomet er R es et B u t t on .

Do t h e I n s t r u men t C lu s t er I n dica t or s a n d G a u ges a ct iv a t e a n d dea ct iv a t e?

All

Yes → Replace the B ody Control Module in accorda nce wit h the Service

I n for ma t ion .



I n for ma t ion .


6 NOTE : The purpose of this test is to perform the Instrument Cluster self test.

Dep r es s a n d h old t h e Odomet er R es et B u t t on .Tu r n t h e Key fr om OFF t o ON a n d t h en ba ck t o OFF.



All

Yes → G o To 7


I n for ma t ion .





Does t h e TR AC OFF I n dica t or l igh t a n d t h en go ou t ?

All

Yes → Replace the TRAC OFF sw itch.


No → G o To 8

60

BRAKES (CAB)

*TRAC OFF INDICATOR NEVER/ALWAYS ON — Continued

7/21/2019 2005 RS Chassis





Disconnect the BCM C4 harness connector.

Check the TRAC OFF Switch Sense circuit for short to ground.I s t h e S en s e cir cu it s h or t ed t o gr ou n d?

All

Yes → Repair the TRAC OFF S wit ch Sense circuit for a short to ground.


No → Replace the B ody Control Module in accorda nce wit h the Service

I n for ma t ion .


61

BRAKES (CAB)

*TRAC OFF INDICATOR NEVER/ALWAYS ON — Continued

7/21/2019 2005 RS Chassis


Symptom:*TRAC ON INDICATOR NEVER/ALWAYS ON

POSSIBLE CAUSES

CAB -- INTERNAL FAULT

CHECK TRACTION CONTROL SYSTEM

C L U S TER F AI L S S EL F TES T

CAB - NO TRAC MES SAGE


1 NOTE: The DRBIII must be able to communicate with the CAB prior toperforming this test.NOTE: Note: If any CAB DTC’s are present, they must be repaired prior to

performing this test.Perform the KEY-ON bulb test .

Did t h e TR AC I n dica t or i l lu min a t e a n d t h en go ou t ?

All

Yes → G o To 2

No → G o To 3

2 M a k e s u r e t h e Tr a ct ion C on t r ol s ys t em h a s n ot been dea ct iva t ed w it h t h e TR AC OFF

s w it ch .

NOTE: The purpose of this test is to determine if the Traction Controlsystem is operating.W it h t h e DR B I I I in I n p u t s /Ou t p u t s , r ea d t h e AB S P u mp M ot or v olt a ge s t a t e.

Accelerate sufficient t o cause dr ive wh eel slip.

Does the TRAC Indicator illuminate and the DRBIII display a pproximat ely 9 volts?

All

Yes → The tra ction control system is functioning normally.





3 NOTE : The purpose of this test is to perform the Instrument Cluster self test.Dep r es s a n d h old t h e Odomet er R es et B u t t on .

Tu r n t h e Key fr om OFF t o ON a n d t h en ba ck t o OFF.



All





I n for ma t ion .


62

BRAKES (CAB)

7/21/2019 2005 RS Chassis


Symptom:*NO RESPONSE FROM ADJ USTABLE PEDALS ASSEMBLY

POSSIBLE CAUSES

F U S E D B ( + ) C K T O P E N

O P E N G R O U N D C I R C U I T

O P E N P C I B U S C I R C U I T

ADJ USTAB LE P ED AL ASS EMB LY



Disconnect t he Adjustable P edals Assembly ha rness connector.

Using a 12-volt test light connected to ground, probe each Fu sed B+ circuit .

I s t h e t es t l igh t i l lu min a t ed for ea ch cir cu it ?

All

Yes → G o To 2

No → R e pa i r t h e F u s ed B + ci r cu i t f or a n o p en o r s h o r t . R ef er t o t h e

w ir in g dia gr a ms in t h e s er v ice in for ma t ion .


1.


Disconnect t he Adjustable P edals Assembly ha rness connector.

Using a 12-volt test light connected t o 12-volts, probe th e ground circuit .

I s t h e t es t l igh t i l lumin a t ed?

All

Yes → G o To 3

No → Repair the G round circuit for an open.P erform ADJ US TAB LE P ED ALS VERIFI CATION TES T - VER

1.

63

COMMUNICATION

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3 Note: Ensure there is PCI Bus communication with other modules on thevehicle before proceeding. If not, refer to the symptom list from the menuand repair as necessary.

Disconnect t he Adjustable P edals Assembly ha rness connector.U s e Scop e in p u t ca ble C H7058, C a ble t o P r obe a da p t er C H7062, a n d t h e r ed a n d

black test probes.

Connect the scope input cable to the channel one connector on the DRB. Attach the

r ed a n d bla ck lea ds a n d t h e ca ble t o p r obe a da p t er t o t h e s cop e in pu t ca ble.

W it h t h e DR B I I I select P ep Module Tools.

Select la b scope.

Select L iv e Da t a .

Select 12 v olt s qu a r e w a v e.

Press F2 for Scope.

P r e s s F 2 a n d u s e t h e d ow n a r r o w t o s et v ol t a g e r a n g e t o 2 0 v ol t s . P r e s s F 2 a g a i n

when complete.

C on n ect t h e B la ck lea d t o t h e ch a s s is gr ou n d. C on n ect t h e R ed lea d t o t h e P C I B u s

circuit in t he Adjustable P edals Assembly connector.

Turn the ignition on.Obs er v e t h e v olt a ge dis pla y on t h e D R B L a b Scop e.

Does the voltage pulse from 0 to approximately 7.5 volts?

All

Yes → R epla ce t h e Adjus t a ble P eda ls As s embly in a ccor da n ce w it h t h e

service informa tion.


1.

No → R epa ir t h e P C I B u s cir cu it for a n open .


1.

64

COMMUNICATION

*NO RE SPONSE FROM ADJ USTABLE PEDALS ASSEMBLY — Continued

7/21/2019 2005 RS Chassis


Symptom:*NO RESPONSE FROM CONTROLLER ANTILOCK BRAKE

POSSIBLE CAUSES

N O RES PO N S E F RO M C A B

G R O U N D C I R C U I T O P E N

O PE N F U S E D I G N I TI O N S WI TC H O U TP U T C I RC U I T

O P E N P C I B U S C I R C U I T

CONTROLLER ANTILOCK BRAKE



Note: As soon as one or more module communicates with the DRB, answer

the question.With the DRB, attempt to communicate with the Airbag Control Module (ACM).

Wit h t h e DR B , a t t emp t t o commu n ica t e w it h t h e B ody C on t r ol M odu le (B C M ).

Was the D RB able t o I/D or establish communicat ions with either of the m odules?

All

Yes → G o To 2

No → Refer to the Communicat ions category and perform the symptom

P C I B u s C ommu n ica t ion Fa ilu r e.




Using a 12-volt test light connected t o 12-volts, probe both ground circuits.

I s t h e t es t l igh t i l lu min a t ed for ea ch cir cu it ?

All

Yes → G o To 3

No → Repair th e ground circuit(s) for an open.





U s in g a 12-v olt t es t l igh t con n ect ed t o gr ou n d, p r obe t h e Fu s ed I gn it ion S w it ch

Output circuit .

I s t h e t es t l igh t i l lumin a t ed?

All

Yes → G o To 4

No →

R epa ir t h e Fu s ed I gn it ion S w it ch Ou t p u t cir cu it for a n open .P erform AB S VERIFI CATION TES T - VER 1.

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COMMUNICATION

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4 Note: Ensure there is PCI Bus communication with other modules on thevehicle before proceeding. If not, refer to the symptom list from the menuand repair as necessary.

Disconnect the CAB harness connector.U s e Scop e in p u t ca ble C H7058, C a ble t o P r obe a da p t er C H7062, a n d t h e r ed a n d

black test probes.

Connect the scope input cable to the channel one connector on the DRB. Attach the

r ed a n d bla ck lea ds a n d t h e ca ble t o p r obe a da p t er t o t h e s cop e in pu t ca ble.

W it h t h e DR B I I I select P ep Module Tools.

Select la b scope.

Select L iv e Da t a .

Select 12 v olt s qu a r e w a v e.

Press F2 for Scope.

P r e s s F 2 a n d u s e t h e d ow n a r r o w t o s et v ol t a g e r a n g e t o 2 0 v ol t s . P r e s s F 2 a g a i n

when complete.

C on n ect t h e B la ck lea d t o t h e ch a s s is gr ou n d. C on n ect t h e R ed lea d t o t h e P C I B u s

circuit in t he C AB connector.

Turn the ignition on.Obs er v e t h e v olt a ge dis pla y on t h e D R B L a b Scop e.

Does the voltage pulse from 0 to approximately 7.5 volts?

All

Yes → G o To 5

No → R epa ir t h e P C I B u s cir cu it for a n open .


5 I f t h er e a r e n o possible ca u ses r em a in in g, view r epa ir. All

Repair

R epla ce t h e C on t r oller A n t ilock B r a k e in a ccor da n ce w it h t h e


P erform ABS VERIFI CATION TES T - VER 1.

66

COMMUNICATION

*NO RESPONSE FROM CONTROLLER ANTILOCK BRAKE — Continued

7/21/2019 2005 RS Chassis


Verification Tests

ABS VERIFICATION TEST - VER 1 APPLICABILITY

1. Turn th e ignit ion off.

2. Connect a ll previously disconnected components an d connectors.

3. E n s u r e a ll a cces sor ies a r e t u r n ed off a n d t h e ba t t er y is fu lly ch a r ged.

4. Ensur e tha t the Ign ition is on, an d wit h the DRB III , erase all Dia gnostic Trouble Codes from

AL L modu les . St a r t t h e en gin e a n d a llow it t o r u n for 2 min u t es a n d fu lly oper a t e t h e s ys t em

t h a t w a s ma lfu n ct ion in g.

5. Tu r n t h e ign it ion off a n d w a it 5 s econ ds . Tu r n t h e ign it ion on a n d u s in g t h e DR B I I I , r ea d

DTC’s from ALL modules.

6. If any Dia gnostic Trouble Codes ar e present, ret urn t o Symptom list a nd t roubleshoot new

or recurring symptom.

7. NOTE: For Sensor Signal and Pump Motor faults, the CAB must sense all 4 wheelsat 25 km/h (15 mph) before it will extinguish the ABS Indicator.8. I f t h er e a r e n o DTC ’s p r es en t a f t er t u r n in g ign it ion on , r oa d t es t t h e v eh icle for a t lea s t 5

minutes. Perform several antilock braking stops.

9. Caution: Ensure braking capability is available before road testing.10. Aga in , w it h t h e DR B I I I r ea d DTC ’ s. I f a n y DTC ’s a r e p r es en t , r et u r n t o Symp t om lis t .

11. If there a re no Dia gnost ic Trouble Codes (DTC’s) present , an d th e customer’s concern can n o

longer be duplicated, the repair is complete.Are any DTC’s present or is the original concern still present?

All

Yes → Repair is not complete, refer to appropriate symptom.

No → Repair is complete.

ADJ USTABL E PE DAL S VE RI FI CAT ION T EST - VE R 1 APPL I CABI LI TY

1. If the Adjustable P edals Module wa s replaced, progra m t wo pedal positions if equipped with

memory function.

2. Act iva t e t h e A dju s t a ble P eda ls t h r ou gh t h e fu ll r a n ge of mov emen t .

3. Verify that the Adjustable Pedals system is disabled with the vehicle in Reverse.

4. Ver ify t h a t t h e Adju s t a ble P eda ls s ys t em is dis a bled w it h S p eed C on t r ol a ct iv a t ed.

5. Wit h t h e DR B I I I, erase DTCs.

6. Wit h t h e DR B I I I, r ea d DTC s .Are any DTC’s present or is the original complaint still present?

All

Yes → Repair is not complete, refer to appropriate symptom.

No → Repair is complete.

67

VERIFICATION TESTS

7/21/2019 2005 RS Chassis


NOTES

68

7/21/2019 2005 RS Chassis


8.0 COMPONENT LOCATIONS

8. 1 CONTROLLER ANTILOCK BRAKE (CAB)

8. 2 DATA LINK CONNECTOR

8.3 FUSES

C

O

M

P

O

N

E

N

T

L

O

C

A

T

O

N

S

69

COMPONENT LOCATIONS

7/21/2019 2005 RS Chassis


8. 4 TRACTION CONTROL SWITCH

8. 4. 1 TRACTION CONTROL INDICATORS

8. 5 WHEEL SPEED SENSORS

8.5.1 FRONT

C

O

M

P

O

N

E

N

T

L

O

C

A

T

I

O

N

S

70

COMPONENT LOCATIONS

7/21/2019 2005 RS Chassis


8.5.2 REAR

8. 5A WHEEL SPEED SENSOR CONNECTORS

8.5A.1 FRONT

8.5A.2 REAR

C

O

M

P

O

N

E

N

T

L

O

C

A

T

O

N

S

71

COMPONENT LOCATIONS

7/21/2019 2005 RS Chassis


8. 6 BRAKE LAM P SWITCHC

O

M

P

O

N

E

N

T

L

O

C

A

T

I

O

N

S

72

COMPONENT LOCATIONS

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9.0 CONNECTOR PINOUTS

ABS PUMP MOTOR (COMPONENT SIDE) - 2 WAYCAV CIRCUIT FUNCTION

1 - GROUND

2 - PUMP/MOTOR RELAY OUTPUT

BRAKE LAMP SWITCH - BLACK 6 WAY

CAV CIRCUIT FUNCTION1 A103 18GY/RD FUSED B(+)

2 L50 18WT/TN (DIESEL) PRIMARY BRAKE SWITCH SIGNAL

2 L50 18WT/TN (GAS) BRAKE LAMP SWITCH OUTPUT

3 V30 20VT/WT (GAS) S/C BRAKE SWITCH OUTPUT

4 V32 20VT/YL (GAS) SPEED CONTROL SUPPLY

5 Z429 20BK/OR GROUND

6 B29 20DG/WT SECONDARY BRAKE SWITCH SIGNAL

CO

N

N

E

C

T

O

R

P

N

OU

T

S

73

CONNECTOR PINOUTS

7/21/2019 2005 RS Chassis


CONTROLLER ANTILOCK BRAKE - BLACK 24 WAY

CAV CIRCUIT FUNCTION

1 Z107 12BK/DG GROUND

2 B1 18DG/OR RIGHT REAR WHEEL SPEED SENSOR SIGNAL

3 B2 18DG/LB RIGHT REAR WHEEL SPEED SENSOR 12 VOLT SUPPLY

4 - -

5 D25 18WT/VT PCI BUS

6 B6 18DG/WT RIGHT FRONT WHEEL SPEED SENSOR SIGNAL

7 B7 18DG/VT RIGHT FRONT WHEEL SPEED SENSOR 12 VOLT SUPPLY

8 - -

9 A111 12DG/RD FUSED B(+)

10 F500 18DG/PK FUSED IGNITION SWITCH OUTPUT (RUN)

11 - -

12 - -

13 - -

14 - -

15 - -

16 Z127 12BK/DG GROUND

17 - -

18 L50 18WT/TN (DIESEL) PRIMARY BRAKE SWITCH SIGNAL

18 L50 18WT/TN (GAS) BRAKE LAMP SWITCH OUTPUT

19 B3 18DG/YL LEFT REAR WHEEL SPEED SENSOR SIGNAL20 B4 18DG/GY LEFT REAR WHEEL SPEED SENSOR 12 VOLT SUPPLY

21 - -

22 B8 18DG/TN LEFT FRONT WHEEL SPEED SENSOR SIGNAL

23 B9 18DG/WT (3.3L/3.8L) LEFT FRONT WHEEL SPEED SENSOR 12 VOLT SUPPLY

23 B9 18DG/LG (EXCEPT

3.3L/3.8L)

LEFT FRONT WHEEL SPEED SENSOR 12 VOLT SUPPLY

24 A107 12TN/RD FUSED B(+)

DATA LINK CONNECTOR - BLACK 16 WAY


1 - -

2 D25 20WT/VT PCI BUS

3 - -4 Z11 20BK/LG GROUND

5 Z111 20BK/WT GROUND

6 - -

7 D21 20WT/DG (DIESEL) SCI TRANSMIT (ECM)

7 D21 20WT/DG (GAS) SCI TRANSMIT (PCM)

8 - -

9 D123 20WT/BR FLASH PROGRAM ENABLE

10 - -

11 - -

12 D20 20WT/LG (GAS) SCI RECEIVE (PCM)

13 - -

14 - -

15 D15 20DG/YL (EATX) SCI TRANSMIT (TCM)

16 A105 20DB/RD FUSED B(+)

CO

N

N

E

C

T

O

R

P

I

N

OU

T

S

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CONNECTOR PINOUTS

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CO

N

N

E

C

T

O

R

P

N

OU

T

S

75

CONNECTOR PINOUTS

7/21/2019 2005 RS Chassis


FUSES (IPM)FUSE

NO.

AMPS FUSED CIRCUIT FUNCTION

1 20A INTERNAL FUSED B(+)

2 15A INTERNAL FUSED PARK LAMP RELAY OUTPUT

3 15A INTERNAL FUSED PARK LAMP RELAY OUTPUT


5 20A F306 16DB/PK FUSED ACCESSORY RELAY OUTPUT

6 20A F307 16LB/PK (ACCESSORY RELAY P OSITION) FUSED ACCESSORY RELAY OUTP UT

6 20A F307 16LB/PK (BATTERY POSITION) FUSED B(+)



10 40A C7 12DB FUSED FRONT BLOWER MOTOR RELAY OUTPUT

11 20A F302 18GY/PK FUSED ACCESSORY RELAY OUTPUT

12 25A C51 12LB/BR FUSED REAR BLOWER MOTOR RELAY OUTPUT

13 40A C15 12DB/WT FUSED DEFOGGER RELAY OUTPUT

14 20A INTERNAL FUSED B(+) (I.O.D.)

15 20A INTERNAL (DIESEL) FUSED B(+)

15 20A INTERNAL (EATX) FUSED B(+)




19 40A A101 12VT/RD FUSED B(+)

20 30A A102 12WT/RD FUSED B(+)

21 25A A111 12DG/RD FUSED B(+)

22 40A A110 12OR/RD FUSED B(+)

23 10A A106 20LB/RD FUSED B(+)

24 20A A701 16BR/RD FUSED B(+) (HAZARD)

26 20A A103 18GY/RD FUSED B(+)

27 40A A112 12OR/RD FUSED B(+)

28 40A F30 12PK/YL FUSED IGNITION SWITCH OUTPUT (RUN-ACC)

30 40A INTERNAL (EXPORT) FUSED B(+)

31 40A A113 12WT/RD FUSED B(+)

32 40A A115 12YL/RD FUSED B(+)33 15A INTERNAL FUSED ACCESSORY RELAY OUTPUT

LEFT FRONT WHEEL SPEED SENSOR - GRAY 2 WAY


1 B9 18DG/WT (3.3L/3.8L) LEFT FRONT WHEEL SPEED SENSOR 12 VOLT SUPPLY

1 B9 18DG/LG (EXCEPT

3.3L/3.8L)

LEFT FRONT WHEEL SPEED SENSOR 12 VOLT SUPPLY

2 B8 18DG/TN LEFT FRONT WHEEL SPEED SENSOR SIGNAL

CO

N

N

E

C

T

O

R

P

I

N

OU

T

S

76

CONNECTOR PINOUTS

7/21/2019 2005 RS Chassis


LEFT REAR WHEEL SPEED SENSOR - BLACK 2 WAY


1 B4 18DG/GY LEFT REAR WHEEL SPEED SENSOR 12 VOLT SUPPLY

2 B3 18DG/YL LEFT REAR WHEEL SPEED SENSOR SIGNAL

RIGHT FRONT WHEEL SPEED SENSOR - GRAY 2 WAY


1 B7 18DG/VT RIGHT FRONT WHEEL SPEED SENSOR 12 VOLT SUPPLY

2 B6 18DG/WT RIGHT FRONT WHEEL SPEED SENSOR SIGNAL

RIGHT REAR WHEEL SPEED SENSOR - BLACK 2 WAY


1 B2 18DG/LB RIGHT REAR WHEEL SPEED SENSOR 12 VOLT SUPPLY

2 B1 18DG/OR RIGHT REAR WHEEL SPEED SENSOR SIGNAL

CO

N

N

E

C

T

O

R

P

N

OU

T

S

77

CONNECTOR PINOUTS

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NOTES

78

7/21/2019 2005 RS Chassis


10.0 SCHEMATIC DIAGRAMS

10. 1 TEVES M ARK 20E ANTILOCK BRAKE SYSTEM – ABS

S

C

H

E

M

A

T

C

D

A

G

R

A

M

S

79

SCHEMATIC DIAGRAMS

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NOTES

80

7/21/2019 2005 RS Chassis


DIAGNOSTIC TEST PROCEDURES — TELL US!

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7/21/2019 2005 RS Chassis


Dealer Technical Operations800 Chrysler DriveCIMS 486-02-76Auburn Hills, MI 48326-2757

2005 RS Chassis

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