Did you perform the Fog Lights System Check?

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Go to Step 2

Go to Fog Lights System Check

Are the park lamps also ON?

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Go to Exterior Lights System Check

Go to Step 3

1. Turn the ignition switch to the ON position. Do not start the engine.
2. Connect the scan tool.
3. Inspect the system for DTCs in the body control module (BCM).

Does the scan tool show any DTCs?

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Go to Diagnostic Trouble Code (DTC) List/Type in Body Control System

Go to Step 4

Disconnect the fog lamp relay.

Do the fog lamps turn OFF?

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Go to Step 6

Go to Step 5

Locate and repair the short to battery power in CKT 34.

Is the repair complete?

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Go to Fog Lights System Check

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Using a test lamp, connect the fog lamp relay terminal 2 to battery voltage.

Does the test lamp illuminate?

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Go to Step 8

Go to Step 7

Replace the fog lamp relay.

Is the repair complete?

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Go to Fog Lights System Check

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1. Ensure that the test lamp remains connected to the fog lamp relay terminal 2 and battery voltage.
2. Disconnect the BCM connector C2.

Does the test lamp illuminate?

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Go to Step 10

Go to Step 9

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Is the repair complete?

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Go to Fog Lights System Check

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Locate and repair the short to ground in CKT 1317.

Is the repair complete?

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Go to Fog Lights System Check

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