Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Fog Lights Schematics Connector End View Reference: Lighting Systems Connector End Views or Data Communication Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Verify that the front fog lamps are always ON. Do the front fog lamps operate normally? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 | With a scan tool, observe the Front Fog Lamp Switch data parameter in the body control module (BCM) data list. Does the scan tool display Inactive? | Go to Step 4 | Go to Step 6 |
4 | Remove the front fog lamp relay. Refer to Relay Replacement . Did the front fog lamps turn OFF? | Go to Step 5 | Go to Step 8 |
5 | Test for a voltage signal at the fog lamp relay control circuit terminal for the front fog lamp relay in the underhood fuse block. Refer to Electrical Center Identification Views and Circuit Testing . Was a voltage signal present? | Go to Step 7 | Go to Step 10 |
6 | Test for a short to ground in the front fog lamp switch signal circuit. Refer to Circuit Testing and Wiring Repairs . Did you find and correct a condition? | Go to Step 12 | Go to Step 11 |
7 | Inspect for poor connections at the harness connector of the BCM. Refer to Circuit Testing and Wiring Repairs . Did you find and correct a condition? | Go to Step 12 | Go to Step 9 |
8 | Repair the short to voltage in the front fog lamp supply voltage circuit. Refer to Wiring Repairs . Did you complete the repair? | Go to Step 12 | -- |
9 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 12 | -- |
10 | Replace the front fog lamp relay. Refer to Relay Replacement . Did you complete the repair? | Go to Step 12 | -- |
11 | Replace the headlamp and panel dimmer switch. Refer to Headlamp Switch Replacement . Did you complete the repair? | Go to Step 12 | -- |
12 |
Did you correct the condition? | System OK | Go to Step 3 |
