Symptom Chart
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart
| Condition |
Possible Sources |
Action |
- The trailer lamps are inoperative - all
|
- Wiring, terminals or connectors
- Trailer
|
|
- The individual trailer lamp is inoperative - trailer stop/turn lamp
|
- Fuse
- Wiring, terminals or connectors
- Trailer tow stop/turn relay
- Trailer
|
|
- The trailer lamps are inoperative - trailer parking lamps
|
- Fuse
- Wiring, terminals or connectors
- Trailer tow parking lamp relay
- Trailer
|
|
- The trailer lamps are inoperative - trailer reversing lamps
|
- Wiring, terminals or connectors
- Trailer tow reversing lamp relay
- Trailer
|
|
- The trailer lamps are on continuously
|
- Wiring, terminals or connectors
- Trailer tow relay
- Trailer
|
|
- The trailer battery charging is inoperative/does not operate correctly
|
- Fuse
- Wiring, terminals or connectors
- Trailer tow battery charge relay
- Trailer
|
|
- The trailer electric brakes are inoperative/do not operate correctly
|
- Fuse
- Wiring, terminals or connectors
- Trailer brake control module (TBCM)
- Trailer
|
|