head light module
Thread Starter
Drifting
Joined: Jan 2006
Posts: 1,554
Likes: 3
From: pasadena in the great state of TEXAS
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17
head light module
what exactly does the module behind the passenger side head light bucket control? i replaced the head light gears and now the lights won't come up sometimes. switch on lights on but do not pop up. cycle the switch a few times one or both may eventually come up. could this be the module?
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
I was going to suggest fuse #6 on the footwell panel but thats not the culprit if it eventually works. My guess would be the headlight switch on the stalk.
As a start buy some electronics cleaner and spray the switch well. If it gets better there's the issue. Eventually though - assuming that's it - you'll probably need to change it. If it's not that, the next one to check would be the hazard switch. Both well know for failing.
As a start buy some electronics cleaner and spray the switch well. If it gets better there's the issue. Eventually though - assuming that's it - you'll probably need to change it. If it's not that, the next one to check would be the hazard switch. Both well know for failing.
Last edited by DeeGee; Jun 22, 2010 at 02:05 AM.
Thread Starter
Drifting
Joined: Jan 2006
Posts: 1,554
Likes: 3
From: pasadena in the great state of TEXAS
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17
I was going to suggest fuse #6 on the footwell panel but thats not the culprit if it eventually works. My guess would be the headlight switch on the stalk.
As a start buy some electronics cleaner and spray the switch well. If it gets better there's the issue. Eventually though - assuming that's it - you'll probably need to change it. If it's not that, the next one to check would be the hazard switch. Both well know for failing.
As a start buy some electronics cleaner and spray the switch well. If it gets better there's the issue. Eventually though - assuming that's it - you'll probably need to change it. If it's not that, the next one to check would be the hazard switch. Both well know for failing.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
As you can see from the wiring diagram, the multi function switch controls the headlamp door modules so this is quite common when the switch fails. I'd still give it a slug of cleaner first and cycle it vigorously to see if you can clean it up. Its been known to work.
