2017 International® Truck Operator Controls

Study Guide

Course Code: 8968

©2017 Navistar, Inc. 2701 Navistar Drive, Lisle, IL 60532.

All rights reserved.

No part of this publication may be duplicated or

stored in an information retrieval system without the express written permission of Navistar, Inc.

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Table of Contents Course Introduction ...................................................................................................................................... 3

Welcome ................................................................................................................................................... 3

Objectives ................................................................................................................................................. 3

Module 1: Network Connection ................................................................................................................... 4

CAN Module Network ............................................................................................................................... 4

CAN Communication ............................................................................................................................. 5

Multiplexing .......................................................................................................................................... 6

Data Links .................................................................................................................................................. 7

Module 2: Human Machine Interface ........................................................................................................... 8

HMI Data Link ............................................................................................................................................ 8

HMI Speed ............................................................................................................................................. 8

HMI Modules......................................................................................................................................... 9

Module 3: Electronic Controls and Displays ............................................................................................... 10

Switch Pack Module ................................................................................................................................ 10

Light Control Module .............................................................................................................................. 12

Door Pod Module .................................................................................................................................... 14

HVAC Module .......................................................................................................................................... 16

Electronic Gauge Cluster ......................................................................................................................... 17

Base Gauge Cluster ............................................................................................................................. 18

Premium Gauge Cluster ...................................................................................................................... 19

Auxiliary Gauges ...................................................................................................................................... 23

Stalk Shifter ............................................................................................................................................. 24

Module 4: Diagnostics and Programming ................................................................................................... 26

Component Diagnostics .......................................................................................................................... 26

Programming ...................................................................................................................................... 27

Diamond Logic Builder ........................................................................................................................ 29

Conclusion ................................................................................................................................................... 34

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This Page Intentionally Left Blank.

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Course Introduction

Welcome Welcome to the Navistar® training course: 2017 International® Truck Operator Controls. This course is intended to provide an in-depth description of the electronic controls and displays within the vehicle cab.

Objectives Upon completion of this course, the viewer will be able to:

Describe the function of a Controller Area Network (CAN)

Identify and describe the various data links

Identify the components on each data link

Describe the function of the electronic controls and displays within the vehicle cab

Describe how to use Diamond Logic Builder® Software to diagnose and program modules

Notes

THE INFORMATION PROVIDED WITHIN THIS COURSE IS FOR TRAINING PURPOSES ONLY. ALWAYS CONSULT THE LATEST SERVICE, DIAGNOSTIC, AND TOOL INFORMATION, LOCATED ON THE INTERNATIONAL® SERVICE PORTAL, PRIOR TO PERFORMING SERVICE ON NAVISTAR® ENGINES, VEHICLES, AND EQUIPMENT.

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Module 1: Network Connection

CAN Module Network

Navistar utilizes a Controller Area Network, or CAN, arrangement of modules. All of the modules on a vehicle are wired together, which forms a network.

Notes

THE NETWORK ARCHITECTURE DIAGRAM IS FOR TRAINING PURPOSES ONLY AND MAY NOT REFLECT THE ENTIRE VEHICLE ARCHITECTURE.

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CAN Communication Modules communicate with each other by sending and receiving data through the network’s wiring.

The speed at which the modules communicate is measured in bits per second, and is known as baud rate.

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Multiplexing When multiple modules communicate over a pair of wires, it is known as multiplexing. These wires are often twisted together to prevent electromagnetic inference from other components on the vehicle. This twisted pair of wires is known as a data link. The two wires on the data link are commonly referred to as CAN high, and CAN low.

Notes

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Data Links Navistar® vehicles built in 2017 and later will utilize multiple data links to communicate with the various modules and components on the vehicle. These data links include the:

• Powertrain Data Link

• Cab Data Link

• J1708 Data Link

• Human Machine Interface Data Link

• Body Data Link

• Local Interconnect Network Data Link

Notes

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Module 2: Human Machine Interface

HMI Data Link The Human-Machine Interface, or HMI, data link utilizes Society of Automotive Engineers, or SAE, J1939 protocol, similar to other data links on Navistar® vehicles.

HMI Speed Modules on the HMI data link communicate up to 125,000 bits per second, or 125k bits per second. Due to this, the HMI data link is sometimes called the low speed, or low speed HMI data link, because of the slower communication rate compared to the other J1939 vehicle data links.

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HMI Modules The modules that communicate on the HMI data link are the:

• Light Control Module

• One or more switch packs

• All vehicle door pods

All of these modules utilize a two wire, High and Low, CAN data link.

Notes

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Module 3: Electronic Controls and Displays

Switch Pack Module

The switch pack module can house up to 6 rocker switches. These switch pack modules are multiplexed and communicate on the HMI data link.

Commonly found in the center panel, they are used to control features such as the dome light, Power Divider Lock, or PDL, and Power Take Off, or PTO.

There are four micro switches found on the switch pack control board, behind each rocker switch.

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When a rocker is depressed, it directly contacts the micro switches, sending a signal across the data link.

Three light emitting diodes, or LEDs, are also installed on the control board of the switch pack behind each rocker.

One LED is used to provide the operator with information on the load and switch status, and the other two other LEDs are used illuminate each rocker switch.

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Light Control Module

The Light Control Module, or LCM, utilizes a headlight multi-switch and two rocker switches. The switches on the LCM are multiplexed and communicate on the HMI datalink.

The headlight multi-switch controls the operation of the headlights, park lights, and if equipped, front and rear fog lights. Two switch rockers can be installed on the LCM, and are most commonly utilized to control ‘Lamp Check’ and ‘Work Light’ operation. The LCM switches operate in the same manner as the switch packs.

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A dimmer dial on the LCM is used to control the brightness of various components on the dash panel; which is then read by multiplexed components such as the switch packs and the Electronic Gauge Cluster, or EGC.

The LCM also broadcasts a pulse width modulated, or PWM, hardwired dimmer signal to the other non-multiplexed backlit components.

Notes

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Door Pod Module

The door pod modules communicate on the HMI data link and control the power door lock actuators and power window motors, if equipped.

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Mirror heat and mirror position can be controlled from the driver door pod, depending on the vehicles feature configuration.

On equipped vehicles, the passenger door pod communicates with the remote keyless entry fob.

Each door pod module utilizes 3 connectors. A black 4 pin connector is wired for window motor and lock functionality. A gray 4 pin connector is wired for power, ground, and data link functionality. An 8 pin connector is wired for mirror heat and control functionality.

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HVAC Module

The Heating, Ventilation, and Air Conditioning, or HVAC, control head is multiplexed and communicates on the 250k bits per second cab data link. This allows for diagnostics should the HVAC system malfunction.

The HVAC control head allows the operator to set the desired vent temperature. Three knobs allow for specific control of air temperature and flow coming from the vents.

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Electronic Gauge Cluster

The Electronic Gauge Cluster, or EGC, communicates on the powertrain data link.

The EGC displays numerous signals and alerts through analog gauges, indicators, and an information screen.

Notes

ALWAYS REFER TO THE VEHICLE’S OPERATION AND MAINTENANCE MANUAL (OMM) FOR MORE INFORMATION ON THE ELECTRONIC GAUGE CLUSTER.

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There are two versions of the electronic gauge cluster: base and premium.

Base: Premium:

Base Gauge Cluster The base cluster utilizes a Liquid Crystal Display, or LCD, screen located in the middle of the cluster, and displays vital vehicle information to the operator.

A push button is located to the right of the LCD screen and is used to scroll through the various menus. To reset the trip counters, press and hold the button for three seconds.

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Premium Gauge Cluster The Premium EGC utilizes a 5” LCD screen, located between the tachometer and speedometer.

Both base and premium EGCs utilize a 24 pin connector.

The Cluster Display Control, or CDC, is located on the dash panel just above the ignition and is used to navigate the various menus and screens.

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The CDC utilizes a four pin connector and is not multiplexed. The four pins are: CDC switch signal, zero volt reference, or ZVR, dimmer control, and ground.

The Body Control Module, or BCM, interprets the CDC switch signal and broadcasts this signal to the EGC via the powertrain data link.

Notes

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Use the CDC joystick by pushing left or right to prompt the main menu to appear.

Push right or left on the CDC joystick again to scroll through the menu categories until the desired menu category is highlighted.

To scroll through the subcategories, push the CDC joystick down until the desired option is highlighted and press OK to select it.

TO PREVENT PROPERTY DAMAGE, PERSONAL INJURY, AND / OR DEATH, DO NOT USE THE

CDC JOYSTICK WHILE THE VEHICLE IS IN MOTION.

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To return to the previous screen or to the main menu, press the RETURN / BACK button, located to the left of the CDC joystick.

To reset trip counters and options, push the OK button for three seconds or until the confirmation pop-up appears.

Audible alarms can be silenced by depressing and holding the brake pedal and the CDC joystick at the same time.

Notes

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Auxiliary Gauges Auxiliary gauges communicate with the EGC via a private, Local Interconnect Network, or LIN, data link.

Auxiliary gauges provide the operator with additional information. Commonly located in the center dash panel, the auxiliary gauges can be factory installed or retrofitted at a customer’s request.

Auxiliary gauges utilize a single 4 pin connector. The 4 terminals are: LIN data link, ground, illumination, and power.

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Stalk Shifter

The stalk shifter communicates on the powertrain data link and depending on the vehicle configuration, allows the operator to select the gear, toggle between manual and automatic mode, and activate the engine brake.

A virtual prindle on the left side of the screen will match the order of the layout on the stalk shifter, and displays the current gear the vehicle is in.

ALWAYS REFER TO THE VEHICLE’S OPERATION AND MAINTENANCE MANUAL (OMM) FOR DETAILED INFORMATION ON THE STALK SHIFTER CAPABILITIES.

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The stalk shifter utilizes a single 8 pin connector. The pins on the connector are: PWM output, neutral request signal, neutral request signal ground, data link, power, and ground.

Notes

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Module 4: Diagnostics and Programming

Component Diagnostics Many of the 2017 and later multiplexed components that communicate with the Body Control Module, or BCM, are capable of self-diagnostics.

These modules include: the base and premium clusters, light control module, switch packs, HVAC control head, stalk shifter, and vehicle door pods.

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Programming All of the modules utilize programming called firmware, which allows for self-diagnostics. Diagnostic messages are communicated across the data links.

Modules broadcast diagnostic messages across their respective data links. These diagnostic messages are called Suspect Parameter Numbers, or SPN.

Components on the HMI data link broadcast diagnostic messages to the BCM, via the HMI data link.

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One SPN can have multiple failure modes. Failure Mode Indicators, or FMI, distinguish the different failure modes that relate to a specific SPN.

Notes

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Diamond Logic Builder

Step-based diagnostics utilizes Diamond Logic Builder®, or DLB, software to view and diagnose SPN fault codes.

When an Electronic Service Tool, or EST, is communicating with the vehicle, the faults tab in DLB will display all active and inactive fault codes.

THE SUSPECT PARAMETER NUMBER (SPN) AND FAILURE MODE INDICATOR (FMI) ARE USED WITH

NAVISTAR® STEP-BASED DIAGNOSTICS, WHICH CAN BE FOUND ON THE INTERNATIONAL® SERVICE

PORTAL.

IN ORDER FOR THE FAULTS TAB TO DISPLAY CODES, DLB NEEDS TO BE IN DIAGNOSTIC MODE WITH THE KEY ON.

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Various tabs in DLB software can be used to diagnose cab electrical components.

The Faults tab displays all active and inactive SPN and FMI fault codes, that have been broadcast on the connected data links.

The Connectors tab displays connector views of each BCM connector, which can be used to diagnose electrical signals specific to each pin of the BCM.

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The Center Panel tab is where multiplexed switches and auxiliary gauges can be viewed and diagnosed. In addition, switch and auxiliary programming can also be performed on this tab.

The Cluster Tab allows for sweep testing of the EGC gauges, as well as testing of the indicator lamps.

Notes

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To update module firmware using DLB, a connection with the vehicle must be established.

When connected, the Detected Modules tab will provide information on each of the multiplexed cab electrical components.

Notes

IF INSTRUCTED BY NAVISTAR®, MODULES WILL NEED TO HAVE THEIR FIRMWARE UPDATED. FIRMWARE PROGRAMMING CAN BE COMPLETED USING DLB.

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To update the firmware, right click anywhere within the module row, and a dropdown menu will appear. Select 'Update Module' which has two green arrows next to it.

A blue status bar will appear across the bottom of the screen. Once the update is complete, a message will appear stating whether it was successful or unsuccessful.

Notes

WHEN UPDATING MODULE FIRMWARE IN DLB, THIS ACTION WILL ONLY UPDATE THE FIRMWARE IN DLB AND WILL NOT COMPLETE THE PROGRAMMING OF THE VEHICLE MODULE.

ONCE THE MODULE FIRMWARE IS UPDATED IN DLB, THEN THE VEHICLE MODULE CAN BE PROGRAMMED BY SELECTING ’PROGRAM MODULE’. IF THE PROGRAMMING OPTION IS GRAYED OUT, THEN THERE ARE NO UPDATES NEEDED TO THE MODULE.

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Conclusion

This concludes the Navistar® training course: 2017 International Truck® Operator Controls Thank you for your participation.

Notes