Pinpoint Test J: The Rear Video Mirror Display Is Always On (Vehicles Without Navigation)
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- J1 CHECK THE REVERSING LAMPS OPERATION
- Check the operation of the reversing lamps.
- Do the reversing lamps operate correctly?
- Yes: DISCONNECT any after market trailer lighting equipment. GO to J2 .
- No: REFER to EXTERIOR LIGHTING .
- J2 CHECK THE AUTO-DIMMING INTERIOR MIRROR REVERSE INPUT CIRCUIT
- Disconnect: Auto-Dimming Interior Mirror C9039.
- Measure the voltage between the auto-dimming interior mirror C9039-2, circuit CBB07 (GN/BU), harness side and ground.
- Is any voltage present?
- Yes: REPAIR the circuit. TEST the system for normal operation.
- No: GO to J3 .
- J3 CHECK FOR CORRECT AUTO-DIMMING INTERIOR MIRROR DISPLAY OPERATION
- Disconnect the auto-dimming interior mirror display connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the auto-dimming interior mirror display connector and make sure it seats correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
- Yes: INSTALL a new auto-dimming interior mirror. REFER to INTERIOR REAR VIEW MIRROR . TEST the system for normal operation.
- No: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.