Trailer Lamps
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
The trailer tow system consists of the following components:
- Trailer tow connector
- TRM (if equipped)
- BJB
- BCM
The trailer tow parking lamps relay supplies voltage to the trailer parking lamps.
The BJB supplies voltage to the trailer reversing lamps.
If not equipped with a TRM and TBM, the BJB supplies voltage to the trailer stop/turn lamps
If equipped with a TRM and TBM, the TRM supplies voltage to the trailer stop/turn lamps and trailer battery charging.