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 inoperative. Do the front fog lamps operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||
3 | Is only one front fog lamp inoperative? | Go to Step 4 | Go to Step 5 | ||||
4 |
Did you complete the repair? | Go to Step 16 | -- | ||||
5 | With the engine OFF, turn the key to RUN and the headlamp switch to PARK. Do the park lamps illuminate? | Go to Step 6 | |||||
6 | Inspect the FOG LP fuse. Is the fuse open? | Go to Step 7 | Go to Step 8 | ||||
7 | Test for a short to ground in the front fog lamp supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct a condition? | Go to Step 16 | Go to Step 14 | ||||
8 |
Was a ground signal present? | Go to Step 11 | Go to Step 9 | ||||
9 | Test for one of the following conditions. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct a condition? | Go to Step 16 | Go to Step 10 | ||||
10 |
Was a ground signal present? | Go to Step 15 | Go to Step 12 | ||||
11 | Test for an open or high resistance in the front fog lamp supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct a condition? | Go to Step 16 | Go to Step 14 | ||||
12 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 16 | Go to Step 13 | ||||
13 | 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 16 | -- | ||||
14 | Replace the front fog lamp relay. Refer to Relay Replacement in Wiring Systems. Did you complete the repair? | Go to Step 16 | -- | ||||
15 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the repair? | Go to Step 16 | -- | ||||
16 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |