| FRONT FOG LAMP DOES NOT ILLUMINATE |
1. Ineffective or missing bulb. |
1. Test and replace front fog lamp bulb as required. |
| 2. Ineffective ground circuit. |
2. Test and repair front fog lamp ground circuit as required. |
| 3. Ineffective feed circuit. |
3. Test and repair open front fog lamp feed circuit as required. |
| 4. Ineffective switch. |
4. Test and replace headlamp switch as required. Check TIPM for DTC's. |
| 5. Ineffective instrument cluster inputs or outputs. |
5. Use a diagnostic scan tool to test the instrument cluster inputs and outputs as required. Refer to the appropriate Diagnostic Information. |
| 6. Ineffective TIPM inputs or outputs. |
6. Use a diagnostic scan tool to test the TIPM inputs and outputs as required. Refer to the appropriate Diagnostic Information. Check TIPM for DTC's. |
| 7. Ineffective CCN inputs or outputs. |
7. Use a diagnostic scan tool to test the TIPM inputs and outputs as required. Refer to the appropriate Diagnostic Information. Check TIPM for DTC's |
| 7. Ineffective SCCM outputs. |
Use diagnostic scan tool to diagnose LIN data bus. Refer to the appropriate Diagnostic Information. Check CCN for DTC's. |
| FRONT FOG LAMP DOES NOT EXTINGUISH |
1. Ineffective feed circuit. |
1. Test and repair shorted front fog lamp feed circuit as required. |
| 2. Ineffective switch. |
2. Test and replace headlamp switch as required. |
| 3. Ineffective CCN inputs or outputs. |
3. Use a diagnostic scan tool to test the instrument cluster inputs and outputs as required. Refer to the appropriate Diagnostic Information. |
| 4. Ineffective TIPM inputs or outputs. |
4. Use a diagnostic scan tool to test the TIPM inputs and outputs as required. Refer to the appropriate Diagnostic Information. |
| 5. Ineffective SCCM outputs. |
5. Use diagnostic scan tool to diagnose LIN data bus. Refer to the appropriate Diagnostic Information. Check CCN for DTC's. |