Troubleshooting Hints

1. Check that the mirror is getting power from the fuse block HVAC Fuse by observing that the label on the mirror on indicator is illuminated.
2. Check the transaxle range switch and underhood electrical center R/CMPT REL Fuse by checking the operation of the backup lamps.
3. Be sure the photocells are not dirty or obstructed.
^ Check for a broken (or partially broken) wire inside of the insulation which could cause system malfunction but prove GOOD in a continuity/voltage check with a system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a voltage drop with the system operational (under load).
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems. Refer to General Troubleshooting Procedures. Diagnostic Aids
^ Refer to System Diagnosis.