Flow of Diagnosis

1. Verify the customer concern by operating the power outside rear view mirrors or memory mirrors.
2. Visually inspect for obvious signs of mechanical and electrical damage.

VISUAL INSPECTION CHART

Mechanical
^ Rear view mirror(s)

Electrical
^ Fuse 4(5A), 23(10A)
^ Damaged wiring
^ Loose, corroded, or dirty connections
^ Outside rear view mirror control
^ Outside rear view mirror
^ Inside rear view mirror
^ Driver Seat Module (DSM)
^ Memory set switch

3. If the vehicle is equipped with memory mirrors and the concern remains after the inspection, connect New Generation STAR (NGS) Tester to the Data Link Connector (DLC) located beneath the instrument panel. Select the vehicle to be tested from NGS Tester menu.
^ Check that the program card is properly installed.
^ Check the connections to the vehicle.
^ Check the ignition switch position.

4. If NGS still does not communicate with the vehicle, refer to the New Generation STAR Tester Manual.
5. Perform the DATA LINK DIAGNOSTIC TEST. If NGS Tester responds with:
^ CKT914, CKT915 or CKT70= ALL ECUS NO RESP/NOT EQUIP, REFER to Module Communications Network.
^ NO RESPONSE/NOT EQUIPPED for DSM, go to Pinpoint Test H.
^ SYSTEM PASSED for the DSM, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs and perform self-test diagnostics for the DSM.

6. If the DTCs retrieved are related to the concern, go to DSM DTC Index. Diagnostic Trouble Code Tests and Associated Procedures
7. If no DTCs related to the concern are retrieved, proceed to Symptom Chart. Symptom Related Diagnostic Procedures