Power Supply and Ground Circuit Inspection For BCM

POWER DOOR LOCK SYSTEM


Power Supply and Ground Circuit Inspection for BCM

1.CHECK FUSE
Check the following fuse and fusible link.
- 50A fusible link (letter F, located in the fuse and fusible link box)
- 10A fuse [No.21, located in the fuse block (J/B)]
- 10A fuse [No.6, located in the fuse block (J/B)]
- 15A fuse [No.1, located in the fuse block (J/B)]

NOTE:
Locations.
OK or NG
OK - GO TO 2.
NG - If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, Schematic.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.





3. Check voltage between BCM and ground.





OK or NG
OK - GO TO 3.
NG - Repair or replace BCM power supply circuit.
3.CHECK GROUND CIRCUIT





Check continuity between BCM harness connector and ground.





OK or NG
OK - Power supply and ground circuit are OK.
NG - Repair or replace BCM ground circuit.