| FOG LAMP DOES NOT ILLUMINATE |
1. Ineffective or missing
bulb. |
1. Test and replace
front fog lamp bulb if required. |
| 2. Ineffective ground
circuit. |
2. Test and repair
open front fog lamp ground circuit if required. |
| 3. Ineffective feed
circuit. |
3. Test and repair
open front fog lamp feed circuit if required. |
| 4. Ineffective
front fog lamp switch. |
4. Test and
replace front fog lamp switch (lower instrument panel switch pod)
if required. |
| 5. Ineffective BCM
inputs or outputs. |
5. Use a diagnostic
scan tool to test the BCM inputs and outputs. Refer to the appropriate
diagnostic information. |
| FOG LAMP DOES NOT EXTINGUISH |
1. Ineffective feed
circuit. |
1. Test and repair
shorted front fog lamp feed circuit if required. |
| 2. Ineffective
front fog lamp switch. |
2. Test and
replace front fog lamp switch (lower instrument panel switch pod)
if required. |
| 3. Ineffective BCM
inputs or outputs. |
3. Use a diagnostic
scan tool to test the BCM inputs and outputs. Refer to the appropriate
diagnostic information. |