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Lock Cylinder Switch: Testing and Inspection

Door Key Cylinder Switch Test

1. Remove the door panel.




2. Disconnect the 3P connector from the key cylinder switch.
3. Check for continuity between the terminals.
- There should be continuity between the No. 2 and No. 3 terminals when the door key cylinder switch is in the LOCK position.
- There should be continuity between the No. 1 and No. 2 terminals when the door key cylinder switch is in the UNLOCK position.
- There should be no continuity between No. 1, No. 2, and No. 3 terminals when the door key cylinder switch is in the neutral position.

4. If the continuity is not as specified, replace the switch.