Check BCM Power Supply and Ground Circuit

POWER WINDOW SYSTEM


Check BCM Power Supply and Ground Circuit

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

NOTE:
Refer to Locations.
OK or NG
OK - GO TO 2.
NG - If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to Schematic.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between BCM connector and ground.










OK or NG
OK - GO TO 3.
NG - Check BCM power supply circuit for open or short.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector and ground.










OK or NG
OK - Power supply and ground circuit are OK.
NG - Check BCM ground circuit for open or short.