Seat Belt Buckle Switch: Testing and Inspection

INSPECT BUCKLE SWITCH CONTINUITY
a. Check that there is continuity between terminals on the switch side connector with the switch ON (belt fastened).
b. Check that there is no continuity between terminals on the switch side connector with the switch OFF (belt unfastened).
If operation is not as specified, replace the seat belt inner.







INSPECT BUCKLE SWITCH CIRCUIT
Disconnect the connector from switch and inspect the connector on wire harness side.
If the circuit is not as specified, inspect the circuits connected to other parts.