Seat Belt Buckle Switch Signal Circuit

SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT





Description
Transmits a seat belt buckle switch signal to the combination meter.




Component Function Check
1.CHECK COMBINATION METER INPUT SIGNAL
Select "DATA MONITOR" for "METER/M&A" and check the "BELT SW" monitor value.





YES - Inspection End.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
Regarding Wiring Diagram information, [1][2]Audible Warning Device.
1.CHECK COMBINATION METER INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between combination meter harness connector M24 terminal 35 and ground.





Is the inspection result normal?
YES - Replace combination meter. Removal And Installation.
NO - GO TO 2
2.CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and seat belt buckle switch LH connector.
3. Check continuity between combination meter harness connector M24 terminal 35 and seat belt buckle switch LH harness connector B202 terminal 1.





4. Check harness continuity between combination meter harness connector M24 terminal 35 and ground.





Is the inspection result normal?
YES - GO TO 3
NO - Repair harness or connector.
3.CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT





Check harness continuity between seat belt buckle switch LH harness connector B202 terminal 2 and ground.





Is the inspection result normal?
YES - Inspection End.
NO - Repair harness or connector.




Component Inspection
1.CHECK SEAT BELT BUCKLE SWITCH





1. Turn ignition switch OFF.
2. Disconnect the seat belt buckle switch LH connector.
3. Check continuity between seat belt buckle switch LH terminals 1 and 2.





Is the inspection result normal?
YES - Inspection End.
NO - Replace the seat belt buckle switch LH.