Pinpoint Test
- CHECK IF THE HEADLAMPS ARE ON
- Ignition ON.
- Observe the headlamps.
Are the headlamps illuminated?
- Yes: REFER to Diagnostic Routine D: The Low Beams Are On Continuously .
- No: GO to 2 .
- CHECK THE BCM REAR PARKING LAMP OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: BCM C2280D.
- Ignition ON.
Do the rear parking lamps continue to illuminate?
- Yes: REPAIR the circuit.
- No: GO to 3 .
- CHECK THE BCM FRONT PARKING LAMP OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: BCM C2280E.
- Ignition ON.
Do the front parking lamps continue to illuminate?
- Yes: REPAIR the circuit.
- No: GO to 4 .
- CHECK FOR CORRECT BCM OPERATION
- Disconnect and inspect all 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 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 OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new 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.