Flow of Diagnosis

1. Verify the customer's concern by operating the outside rear view mirrors to duplicate the condition.
2. Inspect the components of the power rear view mirror system to determine if any of the following mechanical or electrical concerns apply:

VISUAL INSPECTION CHART

Mechanical
^ Damaged outside rear view mirrors or inside rear view mirrors.
^ Damaged outside rearview mirror control.

Electrical
^ Open fuse junction panel fuses:
- Fuse 8 (15A)
- Fuse 13 (10A)
- Circuit Breaker 14 (20A)
- Fuse 1 (15A)
- Fuse 6 (10A)
^ Damage to wiring harness.
^ Loose or corroded connections.

3. Flex the harness and connectors at the outside rear view mirror control, outside rear view mirrors or inside rear view mirror. Look for obvious signs of opens or shorts.
4. If inspection reveals an obvious concern that is readily serviced, correct the concern before continuing with Inspection and Verification.
5. 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 the Data Link Diagnostics Test. If the NGS responds with NO RESPONSE/NOT EQUIPPED for the Driver Seat Module (DSM), go to Pinpoint Test A.
A: No Communication With Driver Seat Module (DSM)

If the Data Link Diagnostic test is passed for the Driver Seat Module (DSM), retrieve continuous Diagnostic Trouble Codes (DTCs) and execute self test diagnostics for the Driver Seat Module (DSM).
Driver Seat Module (DSM) Diagnostic Trouble Code (DTC) Index

6. If self test is passed and no DTCs are retrieved, go to the Symptom Chart to continue diagnostics.
Symptom Related Diagnostic Procedures

7. If DTCs are retrieved, go the DSM Diagnostic Trouble Codes (DTC) Index to continue diagnostics.
Driver Seat Module (DSM) Diagnostic Trouble Code (DTC) Index

8. If the driver seat module cannot be accessed by the NGS, go to Pinpoint Test A.
A: No Communication With Driver Seat Module (DSM)

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