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

Instrumentation, Message Center and Warning Chimes

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

Normal Operation

The stability/traction control is configured on/off through the message center. When the stability/traction control is configured on or off, the Instrument Panel Cluster (IPC) sends a message to the ABS module over the High Speed Controller Area Network (HS-CAN) indicating the stability/traction has been enabled or disabled. The ABS module either enables or disables stability/traction control system and sends a stability/traction control disabled indicator request back to the IPC (Instrument Panel Cluster) to illuminate or turn off the stability/traction control disabled indicator based upon the system state.

When a MyKey(R) programmed key is in use and the AdvanceTrac(R) on feature is configured always on, the traction control system cannot be disabled and the traction control indicator does not illuminate when the traction control disable button is pressed. The traction control indicator still functions normally to indicate a traction control system fault and a traction control active event.

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

This pinpoint test is intended to diagnose the following:

- A MyKey(R) programmed key is in use

- Stability/traction control cannot be disabled

- ABS module

- IPC (Instrument Panel Cluster)

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

P1 RETRIEVE THE RECORDED DTCs FROM THE IPC (Instrument Panel Cluster) SELF-TEST

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

Are any DTCs recorded?

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

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

No
GO to P2.

P2 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 Antilock Brakes / Traction Control Systems.

No
GO to P3.

P3 CHECK FOR THE KEY TYPE

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

Is the key an administrator key?

Yes
GO to P4.

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

If the MyKey(R) AdvanceTrac(R) on feature is not configured always on, GO to P4.

P4 CHECK THE TRACTION CONTROL SETTING THROUGH THE MESSAGE CENTER

- Using the LH steering wheel switch, navigate to the traction control setting menu and observe the traction control setting.

- Configure the stability/traction control on then off again.

Does the traction control selection change when the feature is configured on and off?

Yes
GO to P5.

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

P5 CARRY OUT THE IPC (Instrument Panel Cluster) INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE SCAN TOOL

- Ignition ON.

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

- Select the IPC (Instrument Panel Cluster) stability/traction control disabled indicator (STAB_TC_LMP) active command. Command the stability/traction control disabled indicator on and off while observing the stability/traction control disabled indicator.

Does the stability/traction control disabled indicator illuminate when commanded on and turn off when commanded off?

Yes
INSTALL a new ABS module. TEST the system for normal operation.

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