Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Fog Lights Schematics | ||||
1 | Did you perform the Lighting Diagnostic System Check? | -- | ||
2 | Verify the fault is present. Does the system operate normally? | -- | Go to Testing for Electrical Intermittents in Wiring Systems | |
3 |
Does the scan tool display ON? | -- | Go to Park Lamps Inoperative | |
4 | With the scan tool, command the foglamps ON. Do the foglamps illuminate? | -- | ||
5 |
Is the fuse open? | -- | ||
6 |
Does the scan tool display the switch status as ON? | -- | ||
7 |
Does the test lamp illuminate? | -- | ||
8 |
Does the voltage measure near the specified value? | 11-13 V | ||
9 |
Do the fog lamps illuminate? | -- | ||
10 |
Does the test lamp illuminate? | -- | ||
11 | Connect a test lamp from between the lamp ground circuit and a battery positive voltage circuit. Does the test lamp illuminate? | -- | ||
12 |
Does the test lamp illuminate? | -- | ||
13 |
Did you complete the repair? | -- | -- | |
14 | Repair the open in the ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
15 | Repair the open in the fog lamp switch output circuit. Refer to Wiring Repairs in Wiring Systems. If no open is found, replace the BCM. Refer to Body Control Module Replacement in Body Control System. Did you complete the repair? | -- | -- | |
16 |
Did you complete the repair? | -- | -- | |
17 | Repair the open in the lamp ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | -- | |
18 | Repair the open in the fog lamp relay control circuit. Refer to Wiring Repairs in Wiring Systems. If no open is found, replace the BCM. Refer to Body Control Module Replacement in Body Control System. Did you complete the repair? | -- | -- | |
19 | Replace the foglamp switch. Refer to Fog Lamp Switch Replacement . Did you complete the replacement? | -- | -- | |
20 | Replace the BCM. Refer to Body Control Module Replacement in Body Control System. Did you complete the replacement? | -- | -- | |
21 | Replace the fog lamp relay. Did you complete the replacement? | -- | -- | |
22 | Replace both lamps. Refer to Front Fog Lamp Replacement . Did you complete the replacement? | -- | -- | |
23 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | |
