please help!!!!!
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Junior Member
Joined: Aug 2012
Posts: 12
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Car: 1986 trans am
Engine: 355 sbc
Transmission: th 350
please help!!!!!
ive looked cant find what im looking for. my problem is my headlight motors are inop. went to local salvage yard and replaced harness from firewall to lights still not right. now when you turn the switch on the headlights close. turn off nothing happen. please help me maybe just a complete rewire. can i eliminate the isolation relay. please help im getting realy frustrated. its a 1986 transam
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iTrader: (35)
Joined: Aug 2006
Posts: 1,470
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From: Mississauga,Ont,Canada
Car: 89 IROC
Engine: LSX 6.0 370, TU2 Cam, Fast intake
Transmission: T56 w/ lots of goodies
Axle/Gears: 8.8, Posi, 4.10, 31 Spline
Re: please help!!!!!
I got this from anoter thread hope it helps
FLIP UP TRANS AM / FIRBIRD HEADLIGHT ISSUES
The following applies for both the 1982-86 (aka three-wire) headlight actuators and the 1987-92 (aka two-wire) headlight actuators.
If both headlight doors won't close, then look at the following: A blown 20 amp tail light fuse.
The remainder of this answer applies only for the 1982-86 motors: Check for a bad isolation relay or bad connection or ground.
If one headlight motor won't close, then look at the following: A bad isolation relay, bad connection or ground, faulty actuator motor limit switch or bad actuator motor.
If both headlight doors won't open, then look at the following: A blown main fuse link to the headlight switch, a bad isolation relay or a bad connection or ground.
If one headlight door won't open, then look at the following: A bad actuator relay, a blown actuator relay fuseable link, bad connection or ground, faulty actuator motor limit switch or a bad actuator motor.
The isolation relay is on the frame of the car next ot the drivers-side headlight mechanism. The isolation relay controls both headlight actuators. If the motor continuously runs, but doesn't move the headlight bucket up or down, then you have a stripped gear. I sell a repair kit with a brass CNC machined gear as TDS 508210. I also include instructions and a troubleshoot guide (where the recommendations I've listed above came from).
FLIP UP TRANS AM / FIRBIRD HEADLIGHT ISSUES
The following applies for both the 1982-86 (aka three-wire) headlight actuators and the 1987-92 (aka two-wire) headlight actuators.
If both headlight doors won't close, then look at the following: A blown 20 amp tail light fuse.
The remainder of this answer applies only for the 1982-86 motors: Check for a bad isolation relay or bad connection or ground.
If one headlight motor won't close, then look at the following: A bad isolation relay, bad connection or ground, faulty actuator motor limit switch or bad actuator motor.
If both headlight doors won't open, then look at the following: A blown main fuse link to the headlight switch, a bad isolation relay or a bad connection or ground.
If one headlight door won't open, then look at the following: A bad actuator relay, a blown actuator relay fuseable link, bad connection or ground, faulty actuator motor limit switch or a bad actuator motor.
The isolation relay is on the frame of the car next ot the drivers-side headlight mechanism. The isolation relay controls both headlight actuators. If the motor continuously runs, but doesn't move the headlight bucket up or down, then you have a stripped gear. I sell a repair kit with a brass CNC machined gear as TDS 508210. I also include instructions and a troubleshoot guide (where the recommendations I've listed above came from).