Pinpoint Test BA : The Parking Brake Warning Chime Is Inoperative
- Normal Operation and Fault Conditions
See Parking Brake Warning Chime. REFER to: Warning Chimes - System Operation and Component Description .
Possible Sources
- Brake warning indication concern
- Communication concern
- BCM
- GWM concern
- ABS module
- IPC
Visual Inspection and Pre-checks
- Check the operation of the parking brake warning chime with the vehicle moving at least 10 km/h (6.2 mph) and the parking brake slightly applied (just enough to turn the brake warning indicator on without damaging the rear brakes).
- BA1 CHECK THE SEATBELT WARNING CHIME OPERATION
- Ignition OFF.
- Ignition ON.
- Unbuckle the driver seatbelt.
- Monitor the seatbelt warning chime when the ignition is transitioned from OFF to RUN for 6 seconds.
Does the seatbelt warning chime operate for approximately 6 seconds?
Yes GO to BA2 No GO to Pinpoint Test BC - BA2 CHECK THE BRAKE WARNING INDICATOR FOR CORRECT OPERATION
- Apply the parking brake.
- Observe the brake warning indicator.
Does the brake warning indicator illuminate?
Yes GO to BA3 No GO to Pinpoint Test O - BA3 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: Instrument Panel Cluster (IPC) No GO to BA4 - BA4 PERFORM THE BCM (BODY CONTROL MODULE) SELF-TEST
- Using a diagnostic scan tool, perform the BCM self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: Body Control Module (BCM) . No GO to BA5 - BA5 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CM DTCs).
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes No INSTALL a new BCM. REFER to: Body Control Module (BCM) .