Symptom Chart

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
The reversing lamps are inoperative	Circuitry Reversing lamp switch Smart junction box (SJB) Instrument cluster	Go to Pinpoint Test V .
The individual reversing lamp is inoperative	Circuitry	MEASURE the resistance between the LH reversing lamp C451-3, circuit 57 (BK), harness side and ground; or between the RH reversing lamp C461-3, circuit 57 (BK), harness side and ground. If the resistance is less than 5 ohms, REPAIR circuit 140 (BK/PK). TEST the system for normal operation. If the resistance is not less than 5 ohms, REPAIR circuit 57 (BK). TEST the system for normal operation.
The reversing lamps are on continuously	Circuitry Reversing lamp switch SJB Instrument cluster	Go to Pinpoint Test W .