Tc07pn01 Worksheet Auto Cruise System

7/27/2019 Tc07pn01 Worksheet Auto Cruise System

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GENERAL INFORMATION

By using the auto-cruise control, the drive can drive at the speed he/she likes (in a range ofapproximately 40 - 200 km/h) without depressing the accelerator pedal.

SERVICE SPECIFICATIONS

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SPECIAL TOOLS

AUTO-CRUISE CONTROL SYSTEMBy using the auto-cruise control, the driver can drive at the speed he likes [in a range ofapproximately 40 - 200 km/h (25 - 124 mph)] without depressing the accelerator pedal.

CONTROL SYSTEMThe throttle position sensor (TPS) signal is used in addition to the conventional vehicle speedsensor as the input signal to bring about the following improvements in control.

1. The amount of actuator control varies according to vehicle speed and throttle opening notonly for an expansion, of conformity to differences in engine output but also for betterresponse.

2. On A/T models, overdrive is released (4-speed - 3-speed) when climbing inclines and thesystem judges the return time by vehicle speed and throttle opening to prevent huntingbetween 3-speed and 4-speed.

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ACTUATOR SYSTEMThe actuator system consists of the motor-driven vacuum pump, actuator and intermediate link.The vacuum pump and actuator are in different locations.

System Block Diagram

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COMPONENTS AND FUNCTIONS

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AUTO-CRUISE CONTROL UNITThe control unit is made up of the input interface circuit, micro-computer, constant voltagepower supply circuit, micro-computer monitor circuit and output interface circuit. Signals from thevehicle speed sensor, throttle position sensor and each switch are input into the control unit. Itprocesses them according to the program in the micro-computer memory and outputs controlsignals to the actuator. It also outputs system self-diagnosis results and conditions of inputsignals to the diagnosis output terminal.

Control Logic and Block Diagram

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CONTROL SWITCHThe control swft6h is mounted on the steering wheel and rotates with ft as an integral unit. Theswitch output signals are transmitted via a slip ring which is also incorporated in the steeringwheel. For the control switch on SRS equipped vehicles.

SLIP RINGWhen the steering wheel is turned, each switch contact under the slip ring protector slides alonga groove in the slip ring insulator, while making contact with its sliding surface.

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SERVICE ADJUSTMENT PROSEDUDRESAUTO-CRUISE CONTROL CABLE INSPECTION AND ADJUSTMENT

1. Remove the link protector.

2. Check the slack in each of the inner cables in the accelerator cable, auto-cruise controlcable and throttle cable. If the slack in an inner cable is, excessive, or a there is no play,loosen the adjusting bolts and the nuts in the throttle lever and each link, to release thethrottle lever and each link. (The bolts and nuts should not be removed).

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ACCELERATOR CABLE

1. Rotate the intermediate link A in the direction shownin the diagram, and while keeping it touching thestopper, tighten the adjusting nut in the direction tolessen the inner cable play of the accelerator cable.Then unscrew the adjusting nut the specified number

of turns just before the intermediate link A begins tomove.

Amount to unscrew the adjusting nut: Approx half a turn(inner cable play 0-1 mm). Approx 2 turns.(inner cable play 2 - 3 mm).

2. Fix the accelerator cable with the lock nut.

THROTTLE CABLE

1. Tighten the adjusting nut in the direction to lessen theinner cable play of the throttle cable. At the positionwhere the intermediate link B lever touches theintermediate link A unscrew the adjusting nut thespecified number of turns.

Amount to unscrew the adjusting nut:Approx 1 turn (inner cable play 1-2 mm)

2. Fix the throttle cable with the lock nut.3. Tighten the throttle lever-side adjusting bolt to the

specified torque.

AUTO-CRUISE CONTROL CABLE

1. Tighten the adjusting nut in the direction to lessen theinner cable play of the auto-cruise control cable. ATthe position where the intermediate link C lever

touches the intermediate link S, unscrew theadjusting nut the specified number of turns.

Amount to unscrew the adjusting nut:Approx 1 turn (inner cable play 1-2 mm)

2. Fix the auto-cruise control cable with the lock nut.

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AUTO-CRUISE CONTROL MAIN SWITCHCHECK

1. Turn the ignition key to ON.

2. Check to be sure that the indicator lamp within theswitch illuminates when the main switch is switchedON.

AUTO-CRUISE CONTROL SWITCH CHECKAUTO-CRUISE CONTROL SETTING CHECK

1. Switch ON the main switch.2. Drive at the desired speed within the range ofapproximately 40-200 km./h.

3. Switch ON the SET switch.4. Check to be sure that when the switch is released the

speed is the desired constant speed.

NOTEIf the vehicles speed decreases to approximately 15km/h below the set speed because of climbing a hillfor example, the auto-cruise control will be cancelled.

SPEED-INCREASE SE-MNG CHECK

1. Set to the desired speed.2. Switch ON the RESUME switch.3. Check to be sure that acceleration continues while the

switch is hold, and that when R is released theconstant speed at the time when it was releasedbecomes the driving speed.

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SPEED REDUCTION SETTING CHECK

1. Set to the desired speed.2. Switch ON the SET switch.3. Check to be sure that deceleration continues while

the switch is pressed, and that when ft is released theconstant speed at the time when ft was released

becomes the driving speed.

NOTE:When the vehicle speed reaches the low limit[approximately 40 km/h] during deceleration, the auto-cruise control will be cancelled.

CHECK OF RETURN TO THE SET SPEED BEFORECANCELLATION AND AUTO-CRUISE CONTROLCANCELLATION

1. Set the auto-cruise speed control.2. When any of the following operations are performed

while at constant speed during auto-cruise control,check if normal driving is resumed and decelerationoccurs.

(1) Switch ON the CANCEL switch.(2) The brake pedal is depressed.(3) The clutch pedal is depressed (MM).(4) The selector lever is moved to the "N" range (A/Q.

3. At a vehicle speed of 40 km/h or higher, check ff whenthe RESUME switch is switched ON, vehicle speedreturns to the speed before auto-cruise control drivingwas cancelled, and constant speed driving occurs.

4. When the main switch is turned to OFF while drivingat constant speed, check ff normal driving is resumedand deceleration occurs.

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CHECK AT THE ECU TERMINALS

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AUTO-CRUISE CONTROL COMPONENTINSPECTION

STOP LAMP SWITCH

1. Disconnect the connector2. Check for continua between the terminals of the

switch.

NOTEO---O: Indicates that there is continuity between the

terminals.

CLUTCH SWITCH 1. Remove the clutch switch connector.2. Check ff there is continuity between the clutch switch

terminals while the clutch pedal is depressed, and ffthere is no continuity when the clutch pedal isreleased.

INHIBITOR SWITCH (N POSITION)1. Disconnect the connector.2. Check to be sure that there is continuity between

connector terminals 5 and 8 when the selector leveris moved to the "N" range.

THROTTLE POSMON SENSORRefer to GROUP 13A - Service Adjustment Procedures

ACCELERATOR PEDAL POSITION SENSORRefer to GROUP 13A - Service Adjustment Procedures

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AUTO-CRUISE VACUUM PUMP1. Disconnect the vacuum hose from the electric

vacuum pump and connect a vacuum gauge to thevacuum pump.

2. Disconnect the electric vacuum pump connector.

3. Connect terminal (1) to the battery terminal, andconnect terminals (2) and (3) to the battery (-)terminal.

4. Check to be sure that the vacuum gauge shows areading of 53 kPa or more when terminal (4) isconnected to the battery terminal.

5. In this condition, check to be sure that the vacuumgauge shows a 20 kPa or less when terminals (2) and(3) are disconnected from the battery.

ACTUATOR INSPECTION1. Remove the actuator.2. Apply negative pressure to the actuator with the

vacuum pump and check that the holder moves morethan 35 mm. In addition, check that there is nochange in the position of the holder when negativepressure is maintained in that condition.

3. First install the actuator and then inspect and adjustthe auto-cruise control cable.

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AUTO-CRUISE CONTROL MAIN SWITCH1. Operate the switch and check for continue between

the terminals.

NOTEO O: Indicates that there is continuity between the

terminals.

2. When the battery side is connected to terminal 1 and

the side is connected to terminal 4, and the mainswitch is turned to ON, check I battery voltage isoutput between terminal 5 and the earth until themain switch is turned to OFF.Next, when the main switch is turned to OFF, check 9the battery voltage that was output between terminal5 and the earth becomes OV.

AUTO-CRUISE CONTROL SWITCHMeasure the resistance between the terminals when eachof the SET, RESUME and CANCEL switches is pressed.If the values measured at this time correspond to those inthe table below, then there is no problem.

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SLIP RING

NOTE(1) O----O indicates that there is continuity between

the terminals.(2) Check to be sure that there is no change in

continuity when the steering wheel is turned.(3) For vehicles with SRS, refer to Clock Spring.

AUTO-CRUISE CONTROL INDICATOR LAMP1. Remove the combination meter.2. Check the continuity between terminals (24) and (33).

If there is no continuity, replace the auto- cruisecontrol indicator lamp.

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AUTO-CRUISE CONTROL

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AUTO-CRUISE(PROTON FITTED)

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TROUBLESHOOTINGSTANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING

NOTEBefore carrying out trouble diagnosis, check to be sure that all of the following itemsare normal.1. Is the vacuum hose installed correctly, and is the hose not damaged?2. Is the routing of all cables normal?3. Do the link assembly and all cables move smoothly?4. Is the play of each cable at the standard value?

DIAGNOSTIC FUNCTIONMETHOD OF READING THE DIAGNOSTIC TROUBLE

CODES

When using the MUT-111. Connect the MUT-11 to the diagnosis connector (1

6-pin) underneath the instrument under cover.

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2. With the ignition switch in the ON position, turn theauto-cruise control main switch to ON and take areading of the diagnosis codes.

When using a VoltmeterUse the special tool to connect a voltmeter betweenterminal 13 and either terminal 4 or 5 of the diagnosisconnector (16-pin) underneath the instrument under cover,and take a reading of the diagnosis codes from themovement of the needle on the voltmeter.

NOTEOther diagnosis codes also are output as voltage patterns corresponding to the samecode numbers as when using the MUT-11.

METHOD OF ERASING THE DIAGNOSTIC TROUBLE CODES.

The diagnosis codes can be erased by disconnecting the (-) cable form the battery for 10seconds or more and then re-connecting it, or by the following procedure.1. Turn the ignition switch to ON.2. With the SET switch at the ON position, turn the main switch to ON, and within 1 second

after this, turn the RESUME switch to ON.3. With the SET switch once more at the ON position, turn the stop lamp switch ON for a

continuous period of 5 seconds or more.

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INPUT SWITCH CODE INSPECTION METHOD

1. Connect the MUT-11 or a voltmeter to the diagnosisconnector (I 6-pin) underneath the instrument undercover.

2. With the ignition switch in the ON position, turn theauto-cruise control SET switch to the ON position.

3. Within 1 second after turning the auto-cruise controlmain switch to ON, turn the auto-cruise controlRESUME switch to ON.

4. Carry out each input operation as shown in the inputcheck table, and take a reading of the input switchcodes using the MUT-11 or make a note of themovement of the needle on the voltmeter.

NOTEThe diagnosis result display method when using avoltmeter is the same as the method for checking the

diagnosis codes when using a voltmeter.

Input Inspection Table

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INSPECTION CHART FOR DIAGNOSTIC TROUBLE CODES

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INSPECTION CHART FOR TROUBLE SYMPTOMS

INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS

Inspection Procedure 1

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INSPECTION PROCEDURE 2

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INSPECTION PROCEDUDRE 4

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INSPECTION PRECEDDURE 5


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INSPECTION PRECEDURE 7


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AUTO-CRUISE(EON FIITED)

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INSTALLATION STEP

SERVO MOUNTINGLocation: Between Air-Conditioner condenser and power steering fluid container.

(a) Loosen two bolt securing air-conditioner condenser shown in figure 1

(b) Insert SERVO BRACKET into the loosened bolts and tighten bolts securelywith torque size 10 mm

(c) Attach ground wire to throttle bracket

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Servo Assembly Servo Assembly Servo Bracket


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CAUTION:

Please ensure that the Ground wire is secured.

VACUUM RESERVOIR MOUNTING

LOCATION: ON the right side of bulkhead where the fuel filter is installed

(a) Lessen the bolt near the Fuel Filter shown in figure 3

(b) Insert the vacuum reservoir with bracket into the bolt and tighten securelywith torque rating 10 mm

(c) Remove protective black cap from the Servo ASSEMBLY, and connectVacuum Hose to the SERVO ASSEMBLY. Route the hose to 'AMP' port ofRESERVOIR ASSEMBLY

(d) Connect Vacuum hose intake manifold port as shown in figure 4. Routevacuum hose to the MAN port of the RESERVOIR ASSEMBLY

VACUUM RESERVOIR

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GUIDELINESS

Vacuum Hose must be properly tied up with cable ties

Ensure all vacuum hose routings are not effecting the performance of other components

Check all vacuum hose connections to ensure it is fitted firmly

THROTTLE ATTACHMENTFUEL INJECTION MODEL

LOCATION: THROTTLE BODY VALVE ASSEMBLY AT THE LEFT SIDE OF THE ENGINE.

SHOWN IN FIGURE 5

(a) Removed two bolt behind the ECI-MULTI casing as shown in figure 5

(b) Install Cruise Assembly (Throttle Cable) with bracket and tighten the boltsas shown in figure 6

(c) Figure 7 shown the connection of the cruise cable assembly into throttle.

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GUIDELINES

Set the pulley segment in an open throttle position, and remove throttle from the pulley

Hold the loop end of the adaptor throttle - wire loop between the holes on each side of the

pulley.

Slide the barrel at the end of the throttle cable through the hole than through the adaptorthrottle - wire loop and lastly into the second hole as shown in figure 7

VEHICLE SPEED SENSOR GENERATOR

LOCATION: AT THE GEAR BOX (SPEEDOMETER)

(a) Vehicle speed signal generator should be attached to the transmissionspeedometer cable

(b) Disconnect vehicle speedometer cable from transmission as shown in figure 8

(c) Install vehicle speed signal generator into the transmission housing shown infigure 9

(d) Figure 10 shows the diagram of vehicle speed signal generator

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CRUISE WIRING HARNESS ROUTING

LOCATION: ENGINE COMPARTMENT AND UNDER DASHDOARD ON DRIVER'S SIDE

(a) Remove rubber, plug from engine bulkhead, see figure 12

(b) Route along the side to plug opening on the bulkhead to dashboard

(c) Remove protective black cap and connect vacuum hose from vacuumreservoir (AMP) to servo assembly

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AUTO-CRUISE WIRING HARNESS INSTALLATION

(a) Locate the brake switch connector by removing five screws located below the dashboardas shown in figure 13. The brake switch consist of two wires (Brown and Green)

(b) The Brown wire shown a 12 volts voltage-this is the live side of the switch. Connect Redfuse wire of cruise WIRING HARNESS to the Brown wire.

(c) The Green wire, which is the cold side, should show no voltage until brake pedal ispressed. The violet wire from the WIRING HARNESS must be connected to the green wire

(d) The grey wire from the WIRING HARNESS will then be connected to the signal - generator

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CONTROL SWITCH

LOCATION: BEHIND THE SIGNAL LIGHT LEVER

(a) Remove steering cover and drill a 12 mm hole at the location shown in figure15

(b) Route wire through hole and insert Control Switch

(c) Tighten control switch and ensure that the indicator are facing the driver

(d) Route control switch wires to the WIRING HARNESS as shown in figure 16,reinstall steering cover accordingly

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(e) Install Control Switch wires into the connector housing-4 pin as shown infigure 16 and connect to mating connector of WIRING HARNESS

POWER SOURCE

LOCATION: JUNCTION BLOCK (REAR)

(a) Remove cover underneath the steering by removing five screws as shown infigure 17

(b) Locate the junction block

(c) Connect Brown ACC wire of the Cable Assembly to the Junction Block as,shown in table 1

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VACUUM LINE INSTALLATION

LOCATION: NEAR THE ENGINE WHERE THE INTAKE MANIFOLD VACUUM SOURCE ISLOCATED

(a) Locate the intake manifold vacuum source

(b) Route the vacuum hose from the MAN pin of the vacuum reservoir and theother side to the intake manifold vacuum source as shown in figure 19

WARNING!!! DO NOT CUT THE POWER BRAKE VACUUM UPPER LINE. AN IMPROPERCONNECTION TO THIS LINE COULD IMPAIN THE FUNCTION OF THE VEHICLE BRAKE

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TACHOMETER SIGNAL WIRE CONNECTIONS

(Cruise Control System required the input of tachometer signal on ALL gasoline poweredvehicles so that engine speed (RPM) can be monitored)

LOCATION: AT DISTRIBUTOR UNIT

(a) Locate the tachometer signal wire at the DISTRIBUTOR UNIT (white wire)

(b) Connect the Blue Wire from the CABLE ASSEMBLY'S main wiring to theWhite Wire from the ignition coil by using a bypass connector as shown infigure 20

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BRAKE SWITCH

LOCATION: BEHINDDASHBOARD, BRAKE PADEL ASSEMBLY

(a) Disconnect brake switch harness from brake switch

(b) Connect mailing connectors of CABLE ASSEMBLY-MAIN Wiring to the brake

switch and brake harness as shown in figure 21

(c) Route CABLE ASSEMBLY so that it does not interfere with any movingcomponents

MODULE SEETING

Module seeting for INJECTION MODEL

(1) AUTO TRANMISSION CODE SWITCH 2,5,7 & 9 ON

ONOFF

(2) MANUAL TRANSMISSION CODE SWITCH 2,5,7 ON

ONOFF

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AUTO-CRUISE 2nd GENERATION - AUDIOVOXCLOSED CIRCUIT CONTROL SWITCH

MODEL SETTINGModule setting on Programming Switch for all model MPI manual and automatic transmissionshould read as follows:-

SELF DIAGNOSTIC PROCEDUREENTERINIG DIAGNOSTICS MODE1. Turn the cruise control switch to the OFF position

2. Turn the ignition switch to the OFF position3. Press and hold the Resume / Accel slide switch while you turn the ignition switch to theon. Without starting the engine. Now release the Resume / Accle switch.

4. The diagnostics LED should be OFF at this time

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You need to Unplug the 8-pinconnector from Actuator Assembly for these test

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1. Ground the test light lead and verify that the test light work by proving a know power source

2. Follow the test chart below when testing a Cruise Control Switch

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Tc07pn01 Worksheet Auto Cruise System

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