Ignition Key Switch Test

Ignition Key Switch Test

NOTE: For more key-in beeper information, refer to the circuit diagram and control unit input test Entry Lights Control System (Multiplex Control Unit) Input Test.

When the ignition key is in the ignition switch, the key-in beeper circuit of the multiplex control unit senses ground through the closed ignition key switch. When you open the driver's door, the beeper circuit senses ground through the closed door switch. When both switches are closed (driver's door and ignition), the key-in beeper in the gauge control module is activated.

1. Remove the steering column upper and lower covers Steering Column Removal/Installation.

2. Disconnect the 6P connector (A).





3. Check for continuity between terminals No. 1 and No. 2.

- There should be continuity with the key in the ignition switch.
- There should be no continuity with the key removed.

4. If the continuity is not as specified, the ignition key switch is faulty; replace the steering lock Service and Repair.