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Both headlights wont go up.

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Old 05-18-2016, 02:13 PM
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Jochen
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Default Both headlights wont go up.

My 97 C5 has a headlight problem.

When turning the headlight switch to "ON", both lights comes on, but the headlights itself stays in the down position. No rattling or any other gear noise from the headlight motors.

I realized a clicking noise with an intervall of about 2 seconds comming from an area under the driver headlight. The clicking sound is always there, regardless of if the headlight switch is on or off.

Any idea?

Thanks!

Jochen
Old 05-18-2016, 02:27 PM
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Macleod52
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can you manually raise them up? That may help troubleshooting whether it's the gear or the motor.
Old 05-18-2016, 02:47 PM
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Jochen
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Both headlights can be opened manually. No problem. I guess it might be a control module or relay.
Old 05-18-2016, 02:49 PM
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Jochen
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Originally Posted by 8VETTE7
Are you certain the clicking is coming from under the driver side headlight??

There is a control module that is known to fail for the headlights. But it is under the passenger side headlight.

Highly unlikely that both headlight motors or gears in both headlights would fail at the same time. I would suspect the control module or perhaps fuses but even there since there are two fuses, one for each motor, it's unlikely that both fail at the same time. Fuses 3 and 4 in the engine compartment fuse box.

Here is a link to a picture of the control module:

http://www.vettenuts.net/index.php?l...ct_detail&p=55
Thanks! I will check the fuses first.
Old 05-18-2016, 02:56 PM
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Marc@Vettenuts.net
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Originally Posted by Jochen
Thanks! I will check the fuses first.
Let me know if there is anything you need. We are a salvage yard and have everything you need for your C5. New or used.

Thanks,
Marc
615-896-6100

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Old 05-18-2016, 03:06 PM
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Jochen
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Thanks Marc. I have to check the fuses first. You are shipping to germany?
Old 05-18-2016, 03:37 PM
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Brian Lazo
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I have the same issue with my 99' C5, but on top of that, my running tail lights, dashboard and A/C buttons will not light up when the ignition is on. I feel like it is a problem with one of the fuses as well because this all happened after I replaced a signal light. Let me know if you find a solution!
Old 05-18-2016, 03:43 PM
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Originally Posted by Jochen
Thanks Marc. I have to check the fuses first. You are shipping to germany?
Yes we do.
Old 05-19-2016, 01:08 PM
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Jochen
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Perfect Marc, thanks!

I just checked the fuses. All OK...
And i had a look into the GM Service Manual. They say for the 1997 C5 the Control Module for the headlight opening function is somewhere below the passenger side headlight.... Maybe they changed the possition of that Module.

I will have a look...

Last edited by Jochen; 05-19-2016 at 01:08 PM.
Old 06-01-2016, 12:22 PM
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Jochen
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Problem solved. The batterie was broken. When i tried to start the car, the engine did not start, so i had to jump start it.
Then i tried to turn on the lights and i got the above mentioned problem in not poping up lights.
I never thought it could be the battery.

I had the car running for about 1 hour to charge the battery. After shutting down the motor and checking voltage, the battery just had 9Volts.

Replaced the battery. Pop up headlights work again...

Thanks anyway for helping me!

Jochen

Last edited by Jochen; 06-01-2016 at 12:23 PM.

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