2000 Buick Park Avenue front night lights dont turn off whe

Tiny
GAFORJA
  • MEMBER
  • 2000 BUICK PARK AVENUE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 55,000 MILES
My car got stack in the water because of my foult, so after some funnky moves of the two rear windows by their selfs what I had then available was:
I had everything(lights, signals atc, ) exept the two rear windows were not moving up and down. But the rear right window was down and driving in the rain was not a pleasure, so I decided to bring the car to a repair station. I said to them I just want to bring the window up(talking about rear right side), ok thay said we will power the motor and if is good it will bring the window up. 5 hours later I picked up the car, the window was up as I wanted, I drove home. But when I parked at home I saw the parking lights and running lights on the rear of the car were not on exept the only one spot on the rear left corner. I went back there where I came from and those guys were not responsible at all, they said oh you have wiring problems, oh yeah I said I know that but when I came hare there was not such a problem, thay tried to find something on the fuses but didnt, so I asked the guy, when you pawered up the window's motor did you disconect the motor from the rest of the car? They said yes but I'm sure they didnt, so it was my bad luck going there. The ironik of this is that the rear left window started working properly(car started drying, good weather)So I dont have rear lights no matter is day or night exept one spot on the left, and I have front running lights. When is night I have only front night lights which doesn't turn off when I shut off the engine(so I have to remove a fuse not to let the battery drained)thay turn on when it gets dark while driving. What I noticed was a wet rear window modul under the right rear seat, which I replaced. Please it was very long thing to read but help me what to check and where are the locations for the rear window, for the front night light that stay on when engine is turned off, and for the rear lights that are off all the time exept one spot on the left.
Aleks
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Monday, April 19th, 2010 AT 6:59 AM

4 Replies

Tiny
KHLOW2008
  • EXPERT
Hi Aleks,

Thank you for the donation.

When water gets into the cabin, it always creates a headache.
You can't really blame as some of the faults are latent which would occur some time aftewards. It could be coincidence that some components fails when the vehicle was left at the shop.

For the headlights not turning off, check the Lamp Control Mudule, behind left side of dash right of steering column. It could be water logged causing the headlights to stay on.

As to the rear taillights, they are in the same circuit so if one is working, the others should work. Have you checkd the bulbs? Those that are not working could be bad.
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Tuesday, April 20th, 2010 AT 12:16 PM
Tiny
GAFORJA
  • MEMBER
What to check on the Lamp Control Mudule, that is a closed pagage. Is it anything to check about Twelight system that is activated when is dark and not deactivated when I shut off the engine, something specific.
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Wednesday, April 21st, 2010 AT 5:49 PM
Tiny
GAFORJA
  • MEMBER
Lamp Control Mudule never got wet, so it is propably a fuse or a relay related to the Twelight that I have no clue where exactly it is
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Wednesday, April 21st, 2010 AT 5:53 PM
Tiny
KHLOW2008
  • EXPERT
The Lamp Control Unit controls all the items you mentioned. The twilight sentinel switch is located in the lamp switch.

Unplug the LCU and see if the lights goes off.

Did you check the rear taillight bulbs?

There are no relays that can cause the problem. The LCU though is a sealed unit, it can get wet due to condensation if the cabin is flooded. Check the wire harness conector for contaminations or corrisions, etc.
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Thursday, April 22nd, 2010 AT 10:46 AM

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