posted
my friends, i turned on my lights last night and the right one went up but the left one didnt. i unpluged the light connection and pluged it back.the light is on but the light doesnt come up. after getting pissed i went to sleep this morning i woke up and for shits and giggles i turned on the lights and both came up. any idea whats going on. when the light wasnted working no noice was coming for left light. could it be the motor or i have seen somethings that the gears might be bad. lets have some input.
thanks in advance
Posts: 77 | From: Miami , FL | Registered: Jan 2008
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posted
chewy, what plug are you talking about the healight plug the one that gives the whole light power? if im getting power then asume its the motor?
Posts: 77 | From: Miami , FL | Registered: Jan 2008
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The bulbs are powered by the individual wires plugged into the back of them:
The motor is controlled by the flat grey plug under the manual knob:
According to the one schematic that I have scanned (I sold my C5 manuals) the LH motor is controlled by the DARK GREEN and LIGHT GREEN wires in that plug, but check them all for 12V by using a ground point somewhere else on the car. Here's the catch, you might have to get someone else to cycle the headlight switch since the power to the motor goes away after a few seconds (at least if it's working properly).
posted
ok, ill do that tonight if i do get the 12v at the plug does that mean motor is bad? and if i dont get the 12v what does that mean ? by the way thanks for all the help
Posts: 77 | From: Miami , FL | Registered: Jan 2008
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posted
Since it's an intermittant problem it wouldn't be the fuse. If you have power but the motor doesn't move, then most likely the motor is about to go out for good. There are other possibilities, but other than bad grounds none are very likely, and if it was a ground issue you'd probably be having lots of other troubles also.
If you don't have power getting to the motor I'd have to guess that it's the headlamp door control module (mounted under/behind the RH headlight on the vertical wall).
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chewy yeah i do in fact i dont remember if you helped on clearing some codes last time. the only code i have right now is under sec 28-tcs code c1214hc. just came up this morning on the way to work. the display reads service tracktion control and service ABS on it or something like that. HELP im about to burn my new vette Posts: 77 | From: Miami , FL | Registered: Jan 2008
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posted
Look at the grounds link above. Clean off the two plugs next to your hood shocks and the battery ground (pictured in the link in post #68). Once you know those aren't the cause of your problems you can start looking for bad components.
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ok chewy thats for the lights what about the code C1214h c that im getting where is that sensor or ground connection
Posts: 77 | From: Miami , FL | Registered: Jan 2008
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posted
Those grounds could be the cause for ALL of your problems, only the ABS/TCS is usually intermittant (like your headlight) if it's caused by the ground.
Posts: 1477 | From: North Augusta, SC | Registered: Apr 2003
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ok ill try the grounds hope it works if the problem continues then im looking at new parts right
Posts: 77 | From: Miami , FL | Registered: Jan 2008
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Try turning the knob to help the light raise. There is a rubber bushing inside where the gear is that gets fouled up. My money is on the gear/bushing. I could be wrong right? but this costs you nothing and new parts aren't cheap. The modules and motors seldom go bad. Have your woman turn on the headlights while you listen to the motor if it spins if the knob turns you need to rebuild not a big job. Good luck
Posts: 2768 | From: Pennsylvania | Registered: Jul 2001
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