Schematic Reference: Exterior Lights Schematics

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

Go to Step 3

Are the fog lamps on?

Go to Step 4

Go to Fog Lamps Inoperative

1. With the fog lamp switch to the ON position.
2. Backprobe the fog lamp supply voltage circuit of the fog lamp switch with a test lamp that is connected to a good ground.

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 8

Go to Step 6

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

Has the repair been made?

Go to Step 8

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Replace the fog lamp switch.

Refer to Instrument Panel Multifunction Switch Assembly Replacement in Instrument Panel, Gages, and Console.

Has the repair been made?

Go to Step 8

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2