Fog Lamps Always On Domestic, Gulf States, Japan, Europe
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Fog Lights Schematics | |||
1 | Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 |
Do the fog lamps remain off? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Disconnect the fog lamp relay. Do the fog lamps turn off? | Go to Step 4 | Go to Step 7 |
4 | Probe the supply voltage circuit of the fog lamp relay coil with a test lamp that is connected to ground. Does the test lamp illuminate? | Go to Step 5 | Go to Step 8 |
5 |
Do the fog lamps illuminate? | Go to Step 6 | Go to Step 9 |
6 | Repair the short to battery voltage in the supply voltage circuit of the fog lamp relay coil. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 10 | -- |
7 | Repair the short to battery voltage in the supply voltage circuit of the fog lamps. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 10 | -- |
8 | Replace the fog lamp relay. Refer to Fog Lamp Relay Replacement . Did you complete the replacement? | Go to Step 10 | -- |
9 | Replace the fog lamp switch. Refer to Fog Lamp Switch Replacement . Did you complete the replacement? | Go to Step 10 | -- |
10 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Fog Lamps Always On Rear
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Fog Lights Schematics | |||
1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | |
2 |
Are the rear fog lamps operating properly? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Disconnect the rear fog lamp relay. Are the rear fog lamps illuminated? | Go to Step 9 | Go to Step 4 |
4 | Probe the control circuit of the rear fog lamp relay connector with a test lamp that is connected to battery voltage. Does the test lamp illuminate? | Go to Step 5 | Go to Step 12 |
5 |
Do the rear fog lamps illuminate? | Go to Step 6 | Go to Step 11 |
6 | Disconnect the Body Control Module. Do the rear fog lamps illuminate? | Go to Step 10 | Go to Step 7 |
7 | Probe the signal circuit of the rear fog lamp switch with a test lamp that is connected to battery voltage. Does the test lamp illuminate? | Go to Step 8 | Go to Step 13 |
8 | Repair the short to ground in the signal circuit of the rear fog lamp switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 14 | -- |
9 | Repair the short to battery voltage in the supply voltage circuit of the rear fog lamps. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 14 | -- |
10 | Repair the short to ground in the rear fog lamp control circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 14 | -- |
11 | Replace the rear fog lamp switch. Refer to Rear Fog Lamp Switch Replacement | Go to Step 14 | -- |
12 | Replace the rear fog lamp relay. Refer to Fog Lamp Relay Replacement . | Go to Step 14 | -- |
13 |
IMPORTANT: Perform the set up procedure for the body control module (BCM). Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control Systems. Replace the Body Control Module. Refer to Body Control Module Replacement | Go to Step 14 | -- |
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
