Symptom Chart
WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Refer to SYSTEM WIRING DIAGRAM
for the connector numbers stated in the pinpoint tests.
SYMPTOM CHART
| Condition |
Possible Sources |
Action |
- The trailer lamps are inoperative
|
|
|
- The individual trailer lamp is inoperative - RH trailer turn signal/stoplamp/hazard flasher lamp
|
- Trailer tow RH turn/stop relay
- Circuitry
- Central junction box (CJB)
|
|
- The individual trailer lamp is inoperative - LH trailer turn signal/stoplamp/hazard flasher lamp
|
- Trailer tow LH turn/stop relay
- Circuitry
- CJB
|
|
- The trailer lamps are inoperative - trailer parking lamps
|
- CJB fuse 38 (20A)
- Circuitry
- CJB
|
|
- The trailer lamps are inoperative - trailer reversing lamps
|
- CJB fuse 38 (20A)
- Circuitry
- CJB
|
|
- The trailer lamps are on continuously
|
|
|
- The trailer battery charging is inoperative
|
|
|
- The trailer electric brakes are inoperative
|
- CJB fuse 101 (30A)
- Circuitry
- Trailer tow electric brake controller
- CJB
|
|