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Headlight actuator relay question...

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Old Oct 27, 2001 | 01:01 PM
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Default Headlight actuator relay question...

My '85 has the driver side headlight stuck in the open position. Where are the relays located for this model year? Thanks in advance for the info!
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Old Oct 27, 2001 | 01:12 PM
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Default Re: Headlight actuator relay question... (Red85)

Ok, standing on the driver's side, they are on the leftmost part of the wheel well inside the engine bay. They are hidden under a little "box" thing held on by two hex screws. Follow your left turnsignal light straight back and I think you'll see the box. Once you take the cover off you will see them all clipped into place on a little holder. I think the top-most one is the "control' one or whatever its' called (i forget), then left is middle, and right is bottom.
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Old Oct 27, 2001 | 01:38 PM
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Default Re: Headlight actuator relay question... (scorp508)

My right headlight did the same thing. Below the doors, where the wiring to the door motors snakes around, there's a tight corner, and I found one of those wires was broken! Wasn't real obvious either!
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Old Oct 27, 2001 | 03:04 PM
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Default Re: Headlight actuator relay question... (Buick From Hell)

Thanks, guys...found the relays. What I've discovered is that the actuator relays are ok, but I don't know about the "isolation" one or what it does. I did discover that the gray wire to the problem motor will barely glow my testlight when the headlights are on, but it's fine when the headlights are off. That wire comes from the switch and is connected in parallel with the isolation relay and actuator motor, so it's powered from the switch. Think that switch is the culprit? Thanks!
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Old Oct 27, 2001 | 04:26 PM
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Default Re: Headlight actuator relay question... (Red85)

I did discover that the gray wire to the problem motor will barely glow my testlight when the headlights are on, but it's fine when the headlights are off.

So did you run through all of like 5 test light tests in the service manual?
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Old Oct 27, 2001 | 05:04 PM
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Default Re: Headlight actuator relay question... (scorp508)

Scorp,
Unfortunately, I don't have a service manual yet. All I have is a Hayne's with vague stuff. I'll give you my firstborn child if you'll outline that test proceedure for me! I'll even toss in the 'ol lady.....
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Old Oct 27, 2001 | 05:08 PM
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Default Re: Headlight actuator relay question... (Red85)

I'll even toss in the 'ol lady.....
Picture first. :jester

(Lemme find my books)
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Old Oct 27, 2001 | 05:10 PM
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Default Re: Headlight actuator relay question... (scorp508)

She's pretty cool....gut 'n headed she'd dress out about 100 lbs. Thanks for the extra mile, sir! I'll be awaitin'....
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Old Oct 27, 2001 | 05:24 PM
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Default Re: Headlight actuator relay question... (Red85)

Thanks for the extra mile, sir! I'll be awaitin'....
No problem, here are the wiring diagrams, i'm still scanning the tests. These are BIG files, about 300Kb each. I made em' huge so you could easily read them. :)





[Modified by scorp508, 4:31 PM 10/27/2001]
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Old Oct 27, 2001 | 05:34 PM
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Old Oct 27, 2001 | 05:40 PM
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Old Oct 27, 2001 | 05:44 PM
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Old Oct 28, 2001 | 08:58 AM
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Default Re: (scorp508)

Scorp.....thanks a jillion, sir! Soon as the sun climbs a little higher I'll jump right on this thing.
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Old Oct 28, 2001 | 10:18 AM
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Default Re: (Red85)

Scorp,
Well, it's the motor. Know anyone that's disassembled one of these things and repaired it? Any advice is appreciated!!
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