Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Fog Lights Schematics Connector End View Reference: Master Electrical Component List in Wiring Systems. | |||
1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | |
2 |
Are the rear fog lamps ON? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
3 | Disconnect the rear fog lamp relay. Are the rear fog lamps still on? | Go to Step 13 | Go to Step 4 |
4 | Using a test lamp connected to battery positive voltage, probe the control circuit of the rear fog lamp relay connector. Does the test lamp illuminate? | Go to Step 5 | Go to Step 9 |
5 |
Does the test lamp illuminate? | Go to Step 12 | Go to Step 6 |
6 | Using a test lamp connected to battery positive voltage, probe the fog lamp switch signal circuit of the rear fog lamp module connector. Does the test lamp illuminate? | Go to Step 7 | Go to Step 10 |
7 |
Does the test lamp illuminate? | Go to Step 11 | Go to Step 8 |
8 | Inspect for poor connections at the harness connector of the fog lamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 15 |
9 | Inspect for poor connections at the harness connector of the rear fog lamp relay . Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 14 |
10 | Inspect for poor connections at the harness connector of the rear fog lamp module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 16 |
11 | Repair a short to ground in the signal circuit of the rear fog lamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 17 | -- |
12 | Repair a short to ground in the control circuit of the rear fog lamp relay . Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 17 | -- |
13 | Repair the short to battery positive voltage in the supply voltage circuit of the rear fog lamps. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 17 | -- |
14 | Replace the rear fog lamp relay. Refer to Relay Replacement in Wiring Systems. Is the repair complete? | Go to Step 17 | -- |
15 | Replace the rear fog lamp switch. Refer to Instrument Panel Multifunction Switch Assembly Replacement in Instrument Panel, Gages, and Console. Did you complete the replacement? | Go to Step 17 | -- |
16 | Replace the rear fog lamp module. Did you complete the repair? | Go to Step 17 | -- |
17 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
