Headlight motor wiring question

[84c47755]

I have followed the steps in my GM manual for a left headlight door that will not open on my 1984 Corvette. I am to the point that it says to replace the "white wire" that leads to the actuator relay. Does anyone have general (or specific) guidelines for how to do this? Thanks.

 

[JonM]

http://misterbill.homeip.net/vette/wiring/headlamp_doors.jpg

What makes you think its the wiring? It sounds like you have a commom problem of the bushings needing replacment. A 5 dollar job...

http://mywebpages.comcast.net/zrjuan/headlight.html

http://www.corvettefever.com/howto/33098/

 

[84c47755]

I'm thinking it's not the bushings because I don't have continuity from the white wire to the actuator. I get no motor noise when I pull the headlight knob.

 

[84c47755]

I've switched the relays, and I still get up and down motion on the right headlight, and no motion on the left headlight. I also do not hear any noise in the left motor. Does anyone know a way to test to see if the motor has gone bad?

 

[JonM]

 

[I_R_DA_ONE]

I have rebuilt many of the headlight motors and have found the most common problem is the brushes in the motor are not making contact because of wear..
If you have a lot of mech. ability you can dissasemble the motor and clean the armiture ,,, then reset the bruhses.. Just make sure you put it back together right or the motor will only go in one direction...
Mike R IRDAONE

 

[I_R_DA_ONE]

WELCOME to CAC

Oh and welcome to CAC we are here to help in any way we can

 

[84c47755]

I have rebuilt many of the headlight motors and have found the most common problem is the brushes in the motor are not making contact because of wear..
If you have a lot of mech. ability you can dissasemble the motor and clean the armiture ,,, then reset the bruhses.. Just make sure you put it back together right or the motor will only go in one direction...
Mike R IRDAONE

Thanks Mike, I appreciate the guidance. By any chance do you have any pictures, or can you describe what I should be looking for to indicate that the brushes are not making contact?

 

[I_R_DA_ONE]

you should have a yellow wire, a white wire and I think it's a green wire going to the head light motor... with an ohm meter you should read very little restistence between the wires when the head lights are about halfway up..If you read high restentince between any of the wires, the brushes in the motor are not making contact..
Mike R