Schematic Reference: Fog Lights Schematics

Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Lighting Systems

1. Turn the ignition to the ON position.
2. Turn the headlamp switch to the HEAD position.
3. Place the headlamp dimmer switch to the LOW position.
4. Turn the fog lamp switch OFF.

Do the fog lamps remain off?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Disconnect the fog lamp relay.

Do the fog lamps turn off?

Go to Step 4

Go to Step 7

Probe the supply voltage circuit of the fog lamp relay coil with a test lamp that is connected to ground.

Does the test lamp illuminate?

Go to Step 5

Go to Step 8

1. Connect the fog lamp relay.
2. Disconnect the fog lamp switch.

Do the fog lamps illuminate?

Go to Step 6

Go to Step 9

Repair the short to battery voltage in the supply voltage circuit of the fog lamp relay coil. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 10

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Repair the short to battery voltage in the supply voltage circuit of the fog lamps. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 10

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Replace the fog lamp relay. Refer to Fog Lamp Relay Replacement .

Did you complete the replacement?

Go to Step 10

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Replace the fog lamp switch. Refer to Fog Lamp Switch Replacement .

Did you complete the replacement?

Go to Step 10

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2