Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Fog Lights Schematics Connector End View Reference: Lighting Systems Connector End Views or Computer/Integrating Systems Connector End Views in Computer/Integrating Systems | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
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 in Wiring Systems | 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 in Wiring Systems. 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 in Wiring Systems. 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 in Wiring Systems. 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 in Wiring Systems. 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 in Wiring Systems. Did you complete the repair? | Go to Step 12 | -- |
9 | Replace the BCM. Refer to Control Module References in Computer/Integrating Systems 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 in Wiring Systems. 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 |
