Power Supply and Ground Circuit

POWER SUPPLY AND GROUND CIRCUIT


Diagnosis Procedure

1.CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.





Is the fuse blown?
YES - Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown.
NO - GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect pre-crash seat belt control unit (driver side and passenger side) connectors.
3. Check voltage between harness pre-crash seat belt control unit (driver side and passenger side) connector and ground.





Is the measurement value normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.CHECK GROUND CIRCUIT
Check continuity between pre-crash seat belt control unit (driver side and passenger side) harness connector and ground.





Does continuity exist?
YES - INSPECTION END
NO - Repair or replace harness.