Pinpoint Test
- CHECK THE PARKING LAMP OPERATIONNOTE: Make sure the headlamp switch is in the off position.
- Ignition OFF.
- Wait 1 minute and observe the parking lamps.
- Are the parking lamps illuminated?
- Yes: REFER to DIAGNOSTIC ROUTINE U .
- No: GO to step 2 .
- CHECK THE Body Control Module (BCM) DIMMABLE BACKLIGHTING OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
- Disconnect: Body Control Module (BCM) C2280B.
- Ignition ON.
- Do the dimmable backlighted components continue to illuminate?
- Yes: REPAIR the circuit.
- No: GO to step 3 .
- CHECK FOR CORRECT Body Control Module (BCM) OPERATION
- Disconnect and inspect all Body Control Module (BCM) connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the Body Control Module (BCM) connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
- Yes: CHECK On-Line Automotive Service Information System (OASIS) for any applicable Technical Service Bulletins (TSBs). If a Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new Body Control Module (BCM). REFER to BODY CONTROL MODULE (BCM) - WITHOUT INTELLIGENT ACCESS (IA) or REFER to BODY CONTROL MODULE (BCM) - WITH INTELLIGENT ACCESS (IA) .
- No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.