Fog Lamps Always On
WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Fog Lamps Always On
| 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 | Go to DIAGNOSTIC SYSTEM CHECK - VEHICLE |
| 2 |
|
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 |
|
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 |