Pinpoint Test H : The Abs (Anti-Lock Brake System) Warning RTT (RECONFIGURABLE Telltale) Indicator Is Never Or Always On

Normal Operation and Fault Conditions
See ABS Warning and ABS/Brake/Stability-Traction Control System Indication. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .

If the ABS warning indicator request message is missing for less than 5 seconds, the IPC defaults the ABSRTT warning indicator to its last indication state (on or off), based upon the last message received.

If the ABS warning indicator request message is missing for 5 seconds or longer, the IPC defaults the ABSRTT warning indicator on.

Possible Sources
- Communication concern
- ABS
- GWM
- IPC

H1 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors, liftgate and the hood.
- Clear all message center warnings by pressing the OK button for each warning present.
- Monitor the door ajar RTT warning indicator.
- Open the driver door.
- Clear the message center popup warning.
- Monitor the door ajar RTT warning indicator.
Is the door ajar RTT warning indicator off with the door closed, and on with the door open?

Yes GO to H2

No GO to Pinpoint Test A

H2 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Ignition ON.
- Using a diagnostic scan tool, perform the IPC self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes REFER to the IPC DTC Chart. Refer to Diagnostic Trouble Code (DTC) Chart

No GO to H3

H3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes	REFER to: Anti-Lock Brake System (ABS) and Stability Control .

No	If the ABS warning indicator is never on, the system is operating correctly. If the ABS warning indicator is always on, DIAGNOSE all ABS module Diagnostic Trouble Codes (DTCs). REFER to: Anti-Lock Brake System (ABS) and Stability Control .