2008 headlightproblem
Possible causes for headlamp not illuminating (from the service manual):
1. Ineffective or missing bulb. 1. Test and replace headlamp bulb if required.
2. Ineffective ground circuit. 2. Test and repair open headlamp ground circuit if required.
3. Ineffective feed circuit. 3. Test and repair open headlamp low beam or high beam feed circuit if required.
4. Ineffective switch. 4. Test and replace headlamp switch if required.
5. Ineffective TIPM inputs or outputs. 5. Use a diagnostic scan tool to test the TIPM inputs and outputs. Refer to the appropriate diagnostic information.
1. Ineffective or missing bulb. 1. Test and replace headlamp bulb if required.
2. Ineffective ground circuit. 2. Test and repair open headlamp ground circuit if required.
3. Ineffective feed circuit. 3. Test and repair open headlamp low beam or high beam feed circuit if required.
4. Ineffective switch. 4. Test and replace headlamp switch if required.
5. Ineffective TIPM inputs or outputs. 5. Use a diagnostic scan tool to test the TIPM inputs and outputs. Refer to the appropriate diagnostic information.





