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Normal Operation

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

The battery junction box (BJB) provides voltage to the fog lamp relay through circuit SBB31 (WH/RD). When the fog lamp switch is engaged, a voltage signal is routed to the smart junction box (SJB) through circuit CLF21 (GY/VT). The fog lamp relay coil ground is controlled by the SJB through circuit CLF29 (BN). When the fog lamp relay is energized, voltage is routed to the fog lamps through circuit CLF12 (BN/YE).

Possible Causes

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