Operation CHARM: Car repair manuals for everyone.

Initial Inspection and Diagnostic Overview

1. Verify the customer's concern by operating the power door locks and liftgate or luggage compartment door remote release to duplicate the condition.

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




VISUAL INSPECTION CHART

3. If inspection reveals an obvious concern that is readily serviced, correct the concern before continuing with Inspection and Verification.

4. If the concern remains after the inspection, connect the Rotunda New Generation Star (NGS) Tester 007-00500 or equivalent to the data link connector (DLC) located beneath the instrument panel to perform Data Link Diagnostic Test. If the NGS responds with NO RESPONSE/NOT EQUIPPED for the Generic Electronic Module (GEM), go to Pinpoint Test A. If Data Link Diagnostic Test is passed for the Generic Electronic Module (GEM), retrieve continuous DTCs and execute self-test diagnostics.

5. If self test is passed and no DTCs are retrieved, go to the Symptom Chart to continue diagnostics.

6. If DTCs are retrieved, go to the Generic Electronic Module (GEM) Diagnostic Trouble Code (DTC) Index to continue diagnostics.

7. If the Generic Electronic Module (GEM) cannot be accessed by the NGS tester, go to Pinpoint Test A.

Rotunda Service Bay Diagnostic System (SBDS) 001-00001 may also be used to diagnose this system.