Diagnostic Routine M

Diagnostic Routine M

Diagnostic Overview

The Traction Control System Cannot Be Disabled

Refer to Wiring Diagram Set 60 for schematic and connector information Electrical Diagrams.

Normal Operation and Fault Conditions

Traction control system status is relayed to the driver by the stability/traction control disabled indicator (sliding car OFF icon) in the IPC (Instrument Panel Cluster). When the driver deactivates the traction control, the IPC (Instrument Panel Cluster) sends a message to the ABS (Anti-Lock Brake System) module over the HS-CAN (High Speed Controller Area Network). The ABS (Anti-Lock Brake System) module deactivates the traction control system and sends a message back to the IPC (Instrument Panel Cluster) to illuminate the sliding car OFF icon. The traction control system remains deactivated until the driver changes the traction control state in the message center or until the ignition switch is cycled.

If equipped, MyKey(R) allows users to configure traction control to be either always on or selectable. If a MyKey(R) restricted key is in use with the AdvanceTrac(R) always on feature configured to "on", the traction control system cannot be disabled. An admin key must be used in order to enable and disable the traction control system.

Pinpoint Test

1. CHECK FOR IPC (Instrument Panel Cluster) DTCs (Diagnostic Trouble Codes)

1. Ignition ON.

2. Using a scan tool, carry out the IPC (Instrument Panel Cluster) self-test.

Are any DTCs (Diagnostic Trouble Codes) present in the IPC (Instrument Panel Cluster)?






2. CHECK THE MESSAGE CENTER TRACTION CONTROL SELECTION

1. Using the message center buttons, configure the traction control on and then off again. Refer to the Owner's Literature.

Does the TRACTION CONTROL selection change when configured to on and off?






3. CHECK THE STABILITY/TRACTION CONTROL DISABLED INDICATOR (SLIDING CAR OFF ICON)

1. Using the message center buttons, configure the traction control on and then off again. Refer to the Owner's Literature.

Does the sliding car OFF icon illuminate when the traction control is turned off?