Pinpoint Test V: The Stability/Traction Control Indicator Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Test V: The Stability/Traction Control Indicator Is Never/Always On

Normal Operation

The Instrument Panel Cluster (IPC) receives the stability/traction control data from the ABS module over the High Speed Controller Area Network (HS-CAN) communication bus. The stability/traction control indicator flashes when the vehicle stability/traction control is in active mode or is being controlled by the ABS module. The stability/traction control indicator turns on steady if a fault condition exists in the stability/traction control system. The IPC monitors the stability/traction control message from the ABS module and either flashes the stability/traction control indicator or turns it on steady depending on the condition.

Whenever a fault is detected in the ABS module and the ABS warning indicator is illuminated, the stability/traction control indicator also illuminates and stability/traction control is disabled.

If the stability/traction control status message is missing for less than 5 seconds, the stability/traction control indicator remains in the last indication mode (on or off) based upon the last known good message received. If the stability/traction control message is missing for more than 5 seconds, the IPC sets DTC U0121:00 in continuous memory and defaults the stability/traction control indicator on.

This pinpoint test is intended to diagnose the following:

- Stability/traction control concern
- ABS module
- IPC


PINPOINT TEST V: THE STABILITY/TRACTION CONTROL INDICATOR IS NEVER/ALWAYS ON

-------------------------------------------------
V1 CARRY OUT THE IPC INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE SCAN TOOL

- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IPC DataLogger .
- Enter the IPC active command mode and select the stability/traction control indicator (TC/IVD/RSCLMP) active command. Command the stability/traction control indicator on and off while observing the stability/traction control indicator.
- Does the stability/traction control indicator illuminate when commanded on, and turn off when commanded off?

Yes
GO to V2.

No
INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) Instrument Panel Cluster (IPC). TEST the system for normal operation.

-------------------------------------------------
V2 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST

- Check for recorded DTCs from the IPC self-test.
- Are any DTCs recorded?

Yes
For DTC U0121:00, GO to Pinpoint Test BK. Pinpoint Tests BK: DTC U0121:00

For all other DTCs, REFER to DTC Charts. Instrumentation, Message Center and Warning Chimes

No
GO to V3.

-------------------------------------------------
V3 RETRIEVE THE RECORDED DTCs FROM THE ABS MODULE SELF-TEST

- Check for recorded DTCs from the ABS module self-test.
- Are any DTCs recorded?

Yes
REFER to Vehicle Dynamic Systems Testing and Inspection.

No
INSTALL a new ABS module. REFER to Vehicle Dynamic Systems Service and Repair. TEST the system for normal operation.

-------------------------------------------------