Symptom Chart
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart
| Condition |
Possible Sources |
Action |
- The reversing lamps are inoperative
|
- Fuse
- Wiring, terminals or connectors
- Digital transmission range (TR) sensor
|
|
- The individual reversing lamp is inoperative
|
- Wiring, terminals or connectors
|
- MEASURE the resistance between the inoperative reversing lamp connector circuit 57 (BK), harness side and ground.
- If the resistance is less than 5 ohms, REPAIR circuit 140 (BK/PK). TEST the system for normal operation.
- If the resistance is not less than 5 ohms, REPAIR circuit 57 (BK). TEST the system for normal operation.
|
- The reversing lamps are on continuously
|
- Wiring, terminals or connectors
- Interior rear view mirror
- Digital TR sensor
|
|