Schematic Reference: Exterior Lights Schematics

Connector End View Reference: Master Electrical Component List in Wiring Systems

Did you perform the Lighting System Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

1. Turn the ignition to the ON position.
2. Place the headlamp switch in the PARK position.
3. Press the fog lamp switch to the ON position.

Are the fog lamps and the fog lamp indicator on?

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

Go to Step 3

Are the fog lamps on?

Go to Step 4

Go to Fog Lamps Inoperative

1. Place the fog lamp switch in the ON position.
2. Using a test lamp connected to ground, probe the fog lamp indicator supply voltage circuit of the fog lamp switch.

Does the test lamp illuminate?

Go to Step 7

Go to Step 5

Test the fog lamp indicator supply voltage circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 10

Go to Step 6

Inspect for poor connections at the harness connector of the fuse block - underhood. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 10

Go to Step 8

Inspect for poor connections at the harness connector of the fog lamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 10

Go to Step 9

Replace the fuse block - underhood. Refer to Underhood Electrical Center or Junction Block Replacement in Wiring Systems.

Has the repair been made?

Go to Step 10

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Replace the fog lamp switch. Refer to Fog Lamp Switch Replacement in Instrument Panel, Gages, and Console.

Has the repair been made?

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