Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

1989 GTA both headlights stuck in up position

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Old May 24, 2019 | 04:39 PM
  #1  
torqueaddict's Avatar
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From: Warrington, PA
Car: 89 GTA
Engine: 5.7 ZZ4 Vortec TPI
Transmission: 7004R
1989 GTA both headlights stuck in up position

Hi All - Both my headlights are stuck in the up position. They worked fine before. When I turn lights off and on I hear the headlight control module (I presume, mounted on firewall near master cyl) click, followed by two more clicks. At that time I see a momentary voltage jump at the light motors. (split second)
Under dash fuses are OK.

The factory shop manual I have doesn't address the flip up mechanism.Any idea where to go next with this?
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Old May 24, 2019 | 07:27 PM
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From: Salina, KS
Re: 1989 GTA both headlights stuck in up position

It's in the book. Look in the electrical section. You'll have one diagram for the actual lights (bulbs) and another for the doors/module, etc.
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Old May 24, 2019 | 08:04 PM
  #3  
torqueaddict's Avatar
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Joined: May 2006
Posts: 179
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From: Warrington, PA
Car: 89 GTA
Engine: 5.7 ZZ4 Vortec TPI
Transmission: 7004R
Re: 1989 GTA both headlights stuck in up position

Originally Posted by Drew
It's in the book. Look in the electrical section. You'll have one diagram for the actual lights (bulbs) and another for the doors/module, etc.
Thanks. Just what I was looking for. I didn’t realize they were referred to as “Doors”
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