Operation CHARM: Car repair manuals for everyone.

Initial Inspection and Diagnostic Overview

1. Verify the customer's concern by duplicating the concern.

2. Inspect to determine if one of the following mechanical or electrical concerns apply:





3. NOTE: The following test quickly provides the capability to identify a shorted to ground condition for the door lock cylinder switches, hood switch, ignition lock antitheft switch or the associated circuits.

If inspection reveals obvious concern(s) that can be readily identified, service as required.

Perform the following anti-theft on-board diagnostic test as follows before proceeding to the Symptom





Chart:

^ Turn ignition switch to RUN. If the THEFT indicator lamp comes on solid for 10 seconds, service the ignition lock anti-theft switch and/or Circuit 936 (DG/W).

^ Activate power door unlock button 5 times within ten seconds.

^ Count the number of flashes of the anti-theft warning indicator lamp (repeats every 10 seconds). See table for results and action to take.

^ NOTE: Diagnostic mode will automatically cancel after two minutes or by turning key to OFF.

4. If the concern(s) remains after the inspection, determine the symptom(s) and proceed to Symptom Chart.