Ignition Switch: Testing and Inspection

WARNING: ON VEHICLES EQUIPPED WITH AIR- BAGS, REFER TO AIR BAGS AND SEAT BELTS/AIR BAGS BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

1. Disconnect and isolate the battery negative cable.
2. Remove the steering column shrouds and unplug the ignition switch wire harness connector.
3. With the ignition switch in the On position, check for continuity between the ignition switch fused B(+) circuit terminal and the ignition switch output (start) circuit terminal. There should be no continuity. If OK, go to Step 4. If not OK, replace the faulty switch.
4. With the ignition switch held in the Start position, check for continuity between the ignition switch fused B(+) circuit terminal and the ignition switch output (start) circuit terminal. There should now be continuity. If not OK, replace the faulty switch.