Symptom Chart

WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. 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	Go to Pinpoint Test X .
The individual trailer lamp is inoperative - trailer stop/turn lamp	Fuse Wiring, terminals or connectors Joint connector Trailer tow stop/turn relay Battery junction box (BJB) Trailer	Go to Pinpoint Test Y .
The trailer lamps are inoperative - trailer parking lamps	Fuse Wiring, terminals or connectors Joint connector Trailer tow parking lamp relay BJB Trailer	Go to Pinpoint Test Z .
The trailer lamps are on continuously	Wiring, terminals or connectors Trailer tow relay Trailer	Go to Pinpoint Test AA .