Diagnosis Procedure

SEAT BELT BUCKLE SWITCH


DRIVER SIDE : Description

- Seat belt buckle switch is installed in seat belt buckle.
- Seat belt buckle switch detects condition of seat belt.




SEAT BELT BUCKLE SWITCH


DRIVER SIDE : Diagnosis Procedure

1.CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE) INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect seat belt buckle switch (driver side) connector.
3. Check voltage between seat belt buckle switch (driver side) harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE) CIRCUIT
1. Disconnect driver seat control unit connector.
2. Check continuity between driver seat control unit harness connector and seat belt buckle switch (driver side) harness connector.





3. Check continuity between driver seat control unit harness connector and ground.





Is the inspection result normal?
YES - Replace driver seat control unit. Removal and Installation.
NO - Repair or replace harness.
3.CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE) GROUND CIRCUIT
Check continuity between seat belt buckle switch (driver side) harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace harness.
4.CHECK SEAT BELT BUCKLE SWITCH
Check seat belt buckle switch (driver side). Component Inspection.
Is the inspection result normal?
YES - GO TO 5.
NO - Replace seat belt buckle switch (driver side). Exploded View.
5.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Intermittent Incident.
- INSPECTION END