Seat Belt Buckle Switch: Testing and Inspection

Inspection # 1




INSPECT SEAT BELT BUCKLE SWITCH CONTINUITY
a. Check that continuity exists between the terminals 1 and 4 on the switch side connector with the switch ON (belt fastened).
b. Check that continuity exists between the terminals 2 and 4 on the switch side connector with the switch OFF (belt unfastened).
If operation is not as specified, replace the switch.







INSPECT SEAT BELT BUCKLE SWITCH CIRCUIT
Driver side:
Passenger side:
Disconnect the switch connector and inspect the connector on wire harness side, as shown.
If continuity is not as specified, inspect the circuits connected to other parts.


Inspection # 2




INSPECT SEAT BELT BUCKLE SWITCH CONTINUITY
a. Check that continuity exists between the terminals 1 and 4 on the switch side connector with the switch ON (belt fastened).
b. Check that continuity exists between the terminals 2 and 4 on the switch side connector with the switch OFF (belt unfastened).
If operation is not as specified, replace the switch.







INSPECT SEAT BELT BUCKLE SWITCH CIRCUIT
Driver side:
Passenger side:
Disconnect the switch connector and inspect the connector on wire harness side, as shown.
If continuity is not as specified, inspect the circuits connected to other parts.