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 |
Do both front fog lamps operate? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Is only one front fog lamp inoperative? | Go to Step 12 | Go to Step 4 |
4 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 19 |
5 | Install a fused jumper across the switch side feed circuit and the fog lamps supply voltage circuit of the fog lamp relay connector. Refer to Circuit Testing in Wiring Systems. Did the fog lamps illuminate? | Go to Step 7 | Go to Step 6 |
6 | Test for a short to ground in the fog lamp supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 19 |
7 | Using a test lamp connected to ground, probe the control circuit of the fog lamp relay connector. Does the test lamp illuminate? | Go to Step 8 | Go to Step 9 |
8 |
Does the test lamp illuminate? | Go to Step 20 | Go to Step 17 |
9 |
Does the test lamp illuminate? | Go to Step 10 | Go to Step 18 |
10 |
Does the test lamp illuminate? | Go to Step 21 | Go to Step 11 |
11 | Test the control circuit of the fog lamp relay for a open, high resistance or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 23 | Go to Step 19 |
12 |
Does the test lamp illuminate? | Go to Step 22 | Go to Step 13 |
13 |
Does the test lamp illuminate? | Go to Step 14 | Go to Step 15 |
14 | Using a test lamp, probe between the ground circuit and the supply voltage circuit of the inoperative fog lamp connector. Does the test lamp illuminate? | Go to Step 22 | Go to Step 16 |
15 | Repair the open or high resistance in the supply voltage circuit of the inoperative fog lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 23 | -- |
16 | Repair the open or high resistance in the ground circuit of the inoperative fog lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 23 | -- |
17 | Repair the open or high resistance in the headlamp high beam voltage supply of the fog lamp relay. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 23 | -- |
18 | Repair the open or high resistance in the parklamp supply voltage circuit of the fog lamp switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 23 | -- |
19 |
Did you complete the repair? | Go to Step 23 | -- |
20 | Replace the fog lamp relay. Refer to Relay Replacement in Wiring Systems. Did you complete the repair? | Go to Step 23 | -- |
21 | Replace the 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 23 | -- |
22 | Replace the inoperative front fog lamp. Refer to Front Fog Lamp Replacement . Did you complete the repair? | Go to Step 23 | -- |
23 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |