Trailer Tow Reversing Lamps
WARNING: This page is about a different car, the 2012 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
The trailer tow reversing lamp relay coil receives voltage when the vehicle reversing lamps are illuminated. When the trailer tow reversing lamp relay is energized, voltage is routed to the trailer tow connector.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Trailer tow relay
- Trailer