The Adaptive Cruise Control Warning Chime Is Inoperative
- AT1 CHECK THE SAFETY BELT WARNING CHIME OPERATION
- Ignition OFF.
- Ignition ON.
- Unbuckle the driver safety belt.
- Monitor the safety belt warning chime when the ignition is transitioned from OFF to RUN for 6 seconds.
Does the safety belt warning chime operate for approximately 6 seconds?
- Yes : GO to AT2
- No
: INSTALL a new IPC
.
REFER to: INSTRUMENT PANEL CLUSTER (IPC) .
- AT2 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Using a diagnostic scan tool, perform the IPC self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
- Yes : REFER to DTC Chart: IPC .
- No : GO to AT3
- AT3 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: COMMUNICATIONS NETWORK .
- No : GO to AT4
- AT4 CHECK THE CRUISE CONTROL DISPLAY IN THE MESSAGE CENTER
- Verify the adaptive cruise control display functions in the message center when the adaptive cruise control is in operation.
Does the cruise control display operate in the message center?
- Yes
: DIAGNOSE the cruise control system.
REFER to: CRUISE CONTROL .
- No : GO to PINPOINT TEST AK