Component Tests and General Diagnostics

NOTE: Accessories that fail to operate with the ignition switch in the RUN position, or that remain on when the ignition switch is turned off, may be the result of a binding or sticking ignition switch rather than a malfunctioning ignition switch. Do not apply lubricant to the inside of the ignition switch.

Test the steering column ignition system mechanical operation by rotating the ignition switch lock cylinder through all positions of the ignition switch. The movement should feel smooth with no sticking or binding. The ignition system should return from the START position back to the RUN position (spring return) without assistance. If sticking or binding is encountered, check for the following:
- Burrs on the ignition switch lock cylinder.
- Binding ignition switch lock cylinder.
- Shroud rubbing against ignition switch lock cylinder.
- Burrs or foreign material around the rack-and-pinion actuator in the housing of the ignition switch lock cylinder.
- Insufficient lube on actuator.
- Binding ignition switch.
- Excessive wear on actuator teeth.
- Improper alignment of the steering column shroud.