Key Unlock Warning Switch
Disconnect key unlock warning switch 4-pin connector (located in steering column, near ignition switch). With key in ignition, check continuity between terminal No. 1 and No. 2. See Fig 1. Continuity should exist. With key removed from ignition, check continuity between terminal No. 1 and No. 2. Continuity should not exist. If continuity does not exist, replace switch.