Component Tests and General Diagnostics

Steering Column Switches

Component Tests


Ignition Switch - Mechanical

The following conditions can cause difficulty in operating the ignition switch and lock cylinder:

- Damaged or incorrectly cut ignition key
- Binding ignition lock cylinder
- Binding ignition switch
- Binding or damaged steering column lock module

Carry out the following test to determine if the ignition key/lock cylinder, ignition switch and the steering column lock module are operating correctly.

1. Inspect the ignition key for any burrs, damage or incorrect cut. Have a new ignition key made as necessary. If the key is OK, continue with Step 2.

2. Remove the ignition lock cylinder. Refer to Doors, Hood and Trunk &/or Locks.

3. Rotate the ignition lock cylinder through all of the switch positions.
- If the lock cylinder operates correctly, install the lock cylinder and continue with Step 4.

- If the lock cylinder does not operate correctly, install a new ignition lock cylinder.

4. Remove the ignition switch. Refer to Ignition Switch Ignition Switch.

5. Rotate the ignition lock cylinder through all of the switch positions.
- If the lock cylinder operates correctly, install a new ignition switch.

- If the lock cylinder does not operate correctly, install a new steering column lock module. Refer to Steering Column Lock Module Steering Column Lock Module.