Test N: The Fog Lamps Are Inoperative

PINPOINT TEST N: THE FOG LAMPS ARE INOPERATIVE

N1-N3:

N3-N5:

N5-N7:

N8-N9:

N9-N12:

Normal Operation
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
- Fuse
- Circuit CLF12 (BN/YE) open
- Circuit CLF21 (GY/VT) open
- Circuit CLF29 (BN) open or short to voltage
- Circuit SBB31 (WH/RD) open
- Fog lamp relay
- Headlamp switch
- SJB