Component Tests and General Diagnostics

BCM (BODY CONTROL MODULE)

BCM Power Supply and Ground Circuit Inspection


1. CHECK FUSES AND FUSIBLE LINK

- Check 40A fusible link (letter g , located in the fuse and fusible link box).
- Check 10A fuses [No. 6, 8 and 20, located in the fuse block (J/B)].
OK or NG
OK- GO TO 2.
NG- If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Description and Operation .

2. CHECK BCM POWER SUPPLY CIRCUIT






1.Turn ignition switch OFF.
2.Disconnect BCM.
3.Check voltage between BCM connectors and ground.





OK or NG
OK- GO TO 3.
NG- Repair or replace the harness.

3. CHECK GROUND CIRCUIT






Check continuity between BCM connector M20 terminal 67 and ground.
67 - Ground: Continuity should exist.
OK or NG
OK- Power supply and ground circuit is OK.
NG- Repair or replace harness.