Inspection and Verification
WARNING: This page is about a different car, the 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern.
- Verify the exterior lighting system of the vehicle is operating correctly. If not, refer to the .
- Visually inspect the following for obvious signs of electrical damage.VISUAL INSPECTION CHART
Electrical - Battery junction box (BJB) fuse:
- 9 (20A) (trailer tow turn relays)
- 20 (10A) (trailer tow reversing lamps)
- 115 (20A)
- Central junction box (CJB) fuse:
- 27 (15A) (trailer tow battery charge relay coil)
- 38 (20A) (trailer tow parking lamps relay)
- 107 (20A) (trailer tow battery charge relay supply)
- Circuitry
- Trailer lamps
- Trailer tow turn/stop relays
- Trailer tow battery charge relay
- Trailer tow parking lamp relay
- Trailer tow reversing lamp relay
- CJB
- Battery junction box (BJB) fuse:
- If the concern is not visually evident, verify the symptom. GO to SYMPTOM CHART .