Flow of Diagnosis

SPECIAL TOOL(S)

1. Verify the customer concern by operating the electronic door lock control system.
2. Visually inspect for obvious signs of mechanical and electrical damage:

VISUAL INSPECTION CHART

MECHANICAL
^ Binding latches

ELECTRICAL
^ Blown fuse(s)
^ Damaged relays
^ Damaged wiring harness
^ Loose or corroded connections
^ Damaged Generic Electronic Module (GEM)
^ Damaged New Generation Star (NGS)
^ Damaged keyless entry remote transmitter
^ Damaged door ajar switch
^ Damaged Brake On/Off (BOO) switch
^ Damaged Transmission Range (TR) sensor

3. If the inspection reveals an obvious concern that is readily repaired, correct the concern before continuing with the inspection and verification.
4. If a concern remains after the inspection, use the NGS tester to retrieve continuous Diagnostic Trouble Codes (DTCs) for the Remote Anti-theft Personality (RAP) module and for the GEM.
5. If the 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 DTC index for the appropriate module, GEM or RAP, to continue diagnostics.
7. If the GEM module cannot be accessed by the NGS, go to Information Bus. Go to Pinpoint Test F for no module communication to RAP module.
8. If the fault is not visually evident, determine the symptom and proceed to the Symptom Chart. Symptom Related Diagnostic Procedures