Pinpoint Test AB: The Stability/Traction Control Indicator (Sliding Car Icon) Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AB: The Stability/Traction Control Indicator (Sliding Car Icon) Is Never/Always On

Normal Operation

The stability/traction control indicator (sliding car icon) flashes when the vehicle stability/traction control is in active mode or is being controlled by the ABS module. The Instrument Cluster (IC) receives the stability/traction control data from the ABS module over the High Speed Controller Area Network (HS-CAN) communication bus. The IC (Instrument Cluster) monitors the stability/traction control message and when the ABS module detects a stability/traction control concern, the IC (Instrument Cluster) illuminates the stability/traction control indicator (sliding car icon). If the stability/traction control message is missing for more than 5 seconds, the IC (Instrument Cluster) sets DTC U0121 (non-hybrid) or U0129 (hybrid) in continuous memory and defaults the stability/traction control indicator (sliding car icon) on.

This pinpoint test is intended to diagnose the following:

- Stability/traction control system concern

- A MyKey(TM) programmed key is in use

- ABS module

- IC (Instrument Cluster)

PINPOINT TEST AB : THE STABILITY/TRACTION CONTROL INDICATOR (SLIDING CAR ICON) IS NEVER/ALWAYS ON

AB1 CHECK FOR THE KEY TYPE

- Check if the key is a MyKey(TM) programmed key or administrator key. Refer to Antitheft and Alarm Systems.

Is the key an administrator key?

Yes
GO to AB2.

No
If the MyKey(TM) AdvanceTrac(R) on feature is configured always on, the system is normal. The traction control system cannot be disabled when the AdvanceTrac(R) on feature is configured always on.

If the MyKey(TM) AdvanceTrac(R) on feature is not configured always on, GO to AB2.

AB2 CARRY OUT THE IC (Instrument Cluster) INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE SCAN TOOL

- Enter the following diagnostic mode on the scan tool: IC (Instrument Cluster) DataLogger.

- Select the IC (Instrument Cluster) stability/traction control indicator (sliding car icon) (ACTIVELMP) active command. Command the stability/traction control indicator (sliding car icon) on and off. Observe the stability/traction control indicator.

Does the stability/traction control indicator (sliding car icon) illuminate when commanded on and turn off when commanded off?

Yes
GO to AB3.

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

AB3 RETRIEVE THE RECORDED DTCs FROM THE ABS MODULE SELF-TEST

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

Are any ABS module DTCs recorded?

Yes
REFER to Body Control Systems.

No
GO to AB4.

AB4 RETRIEVE THE RECORDED DTCs FROM THE IC (Instrument Cluster) SELF-TEST

- Check for recorded IC (Instrument Cluster) DTCs from the self-test.

Is DTC U0121 (non-hybrid) or DTC U1029 (hybrid) recorded?

Yes
GO to AB5.

No
INSTALL a new ABS module. TEST the system for normal operation.

AB5 CARRY OUT THE IC (Instrument Cluster) SELF-TEST

- Enter the following diagnostic mode on the scan tool: IC (Instrument Cluster) Self-Test.

- Clear the DTCs. Repeat the IC (Instrument Cluster) self-test.

Is DTC U0121 or DTC U0129 present?

Yes
For DTC U0121, GO to Pinpoint Test AZ Pinpoint Test AZ: DTC U0121.

For DTC U0129, GO to Pinpoint Test BA Pinpoint Test BA: DTC U0129.

No
VERIFY the stability/traction control indicator is operating correctly at this time. The concern may have resulted from an intermittent network concern.