Both fog lamps inoperative

Go to Chart 1.

Left fog lamp inoperative

1. Check bulb.
2. If OK, disconnect left fog lamp connector, BLK 2-way.
3. Turn fog lamps ON.
4. Connect a test light between circuit 34 and ground.

•	If test light bulb lights - open circuit 150.

•	If test light bulb does not light - open circuit 34.

Right fog lamp inoperative

1. Check bulb.
2. If OK, disconnect right fog lamp connector, BLK 2-way.
3. Turn fog lamps ON.
4. Connect a test light between circuit 34 and ground.

•	If test light bulb lights - open circuit 150.

•	If test light bulb does not light - open circuit 34.

Fog lamps, fog lamp switch illumination inoperative

Open circuit 550 or faulty fog lamp switch

Fog lamp switch illumination inoperative, fog lamps operate normally

Faulty fog lamp switch

Fog lamps do not turn OFF with high beam headlamps ON.

1. Disconnect I/P switch connector, NAT 4-way.
2. Connect a test light between circuit 1200 and ground.

•	If test light is ON, faulty fog lamp switch.

•	If test light is OFF, open circuit 1200 between UHFB and I/P switch.