Interior Light Switch: Testing and Inspection

1. INSPECT FRONT DOOR COURTESY SWITCH CONTINUITY
a. Check that continuity exists between terminals 1 and 2 with the door lock open.
b. Check that no continuity exists between terminals 1 and 2 with the door lock closed.
If operation is not as specified, replace the door lock.




2. INSPECT FRONT DOOR COURTESY SWITCH CIRCUIT
Disconnect the connector from the door lock assembly and inspect the connector on the wire harness side.
If the circuit is not as specified, inspect power source or wire harness.




3. INSPECT REAR DOOR COURTESY SWITCH CONTINUITY
a. Check that continuity exists between terminals 1 and 2 with the door lock open.
b. Check that no continuity exists between terminals 1 and 2 with the door lock closed.
If operation is not as specified, replace the door lock.







4. INSPECT REAR DOOR COURTESY SWITCH CIRCUIT
Disconnect the connector from the door lock assembly and inspect the connector on the wire harness side.
If the circuit is not as specified, inspect power source or wire harness.







5. INSPECT BACK DOOR COURTESY SWITCH CONTINUITY
If continuity is not as specified, replace the switch and motor.







6. INSPECT BACK DOOR COURTESY SWITCH CIRCUIT
Disconnect the connector from the switch and opener motor, and inspect the connector on the wire harness side.
If the circuit is not as specified, inspect power source or wire harness.




7. INSPECT DOOR COURTESY LIGHT CONTINUITY
Using the ohmmeter, check that there is continuity between terminals.
If continuity is not as specified, replace the light assembly or bulb.