Step | Action | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Fog Lights Schematics Connector End View Reference: Master Electrical Component List | |||||||||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |||||||
2 |
Are the fog lamps OFF? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 | ||||||
3 | Using a scan tool, command the fog lamps OFF. Are the fog lamps illuminated? | Go to Step 5 | Go to Step 4 | ||||||
4 |
Are the fog lamps illuminated? | Go to Step 6 | Go to Step 9 | ||||||
5 | Test the fog lamp voltage supply circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 13 | Go to Step 7 | ||||||
6 | Test the front fog lamp switch signal circuit for the following:
Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 13 | Go to Step 8 | ||||||
7 | Inspect for poor connections at the harness connector of the underhood fuse block. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 13 | Go to Step 10 | ||||||
8 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 13 | Go to Step 11 | ||||||
9 | Inspect for poor connections at the harness connector of the fog lamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 13 | Go to Step 12 | ||||||
10 | Replace the underhood fuse block. Refer to Underhood Electrical Center or Junction Block Bracket Replacement . Did you complete the replacement? | Go to Step 13 | -- | ||||||
11 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | Go to Step 13 | -- | ||||||
12 | Replace the fog lamp switch. Refer to Fog Lamp Switch Replacement . Did you complete the replacement? | Go to Step 13 | -- | ||||||
13 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 | ||||||
