Fog Lamps Inoperative Export, Rear
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Fog Lights Schematics | |||
1 | Did you review the fog lamp operation and perform the necessary inspections? | Go to Step 2 | |
2 |
Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Is only the rear fog lamp indicator inoperative? | Go to Step 4 | Go to Step 5 |
4 | Test the headlamp switch signal circuit of the rear fog lamp switch for high resistance or an open. Did you find and correct the condition? | Go to Step 20 | Go to Step 15 |
5 | Is the rear fog lamp switch illumination operative? | Go to Step 7 | Go to Step 6 |
6 | Test the ground circuit of the rear fog lamp switch for high resistance or an open. Did you find and correct the condition? | Go to Step 20 | Go to Step 7 |
7 |
Does the rear fog lamp illuminate? | Go to Step 10 | Go to Step 8 |
8 | Test the battery positive voltage circuit of the rear fog lamp relay for high resistance or an open. Did you find and correct the condition? | Go to Step 20 | Go to Step 9 |
9 | Test the rear fog lamp supply circuits between the rear fog lamp relay and ground for a high resistance or an open. Did you find and correct the condition? | Go to Step 20 | Go to Step 13 |
10 | Connect a test lamp between the headlamp switch signal circuit of the rear fog lamp relay and a good ground. Does the test lamp illuminate? | Go to Step 11 | Go to Step 16 |
11 | Connect a test lamp between the rear fog lamp relay control circuit of the rear fog lamp relay and a battery positive voltage circuit. Does the test lamp illuminate? | Go to Step 14 | Go to Step 12 |
12 | Test the rear fog lamp relay control circuit of the rear fog lamp relay for a high resistance or an open. Did you find and correct the condition? | Go to Step 20 | Go to Step 15 |
13 | Inspect for poor connections at the harness connector of the rear fog lamp bulb. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 20 | Go to Step 17 |
14 | Inspect for poor connections at the harness connector of the rear fog lamp relay. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 20 | Go to Step 18 |
15 | Inspect for poor connections at the harness connector of the rear fog lamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 20 | Go to Step 19 |
16 | Repair the headlamp switch signal circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 20 | -- |
17 | Replace the rear fog lamp bulb. Refer to Rear Fog Lamp Bulb Replacement Did you complete the replacement? | Go to Step 20 | -- |
18 | Replace the rear fog lamp relay. Did you complete the replacement? | Go to Step 20 | -- |
19 | Replace the rear fog lamp bulb. Refer to Rear Fog Lamp Switch Replacement Did you complete the replacement? | Go to Step 20 | -- |
20 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
