On-Vehicle Inspection
Ignition (Main) Switch On-Vehicle Inspection1. Disconnect negative (-) cable at battery.
2. Disable air bag system referring to "Disabling Air Bag System:".
3. Disconnect main switch lead wire connectors from junction/fuse block and air bag harness.
Checking Continuity between Terminals
Use a circuit tester to check the continuity at each switch position. If any continuity is not obtained, replace main switch.