rithsleeper

Is this a switch problem? How does the system work? Is it a constant voltage when they are up and then nothing when down? Is there a relay in this system?

Don't have time till the weekend but I figure ill start testing with the switch and work to the lights since they both have the same problem.

oldalaskaman

I vote switch , it depends on year

pcolt94

There is no mechanical switch. There is an electronic control module that controls the headlights up and down functions. It monitors the current which is automatic and transparent to the user. All you have to do is turn the headlights to on or off. The module is under the hood.

The module might be bad causing the problem. However I would check the fuse links because this is what controls the power to the module. Look at connections, loose wires and corrosion.

The head light switch or the module are suspects. But if I had to take a first shot at it, I would look at the fuses and the wiring first.

oldalaskaman

that depends on the year, 84-87 dont have the module

pcolt94

But his car is an 89, and says in his profile and avair.

rithsleeper

Ok, ill track module. Im thinking wiring too now if switch isn't part of the system. Ill straight wire and see if I can track problem.

oldalaskaman

I quit digging thru profiles to see what year they have,

rithsleeper

Its an 89. I usually say just didn't think it made a difference since I've owned 86, 87 also and each system looked identical.

MickPB

If it has been four hours - call a Dr.

csf64ss

well I have an 86 an guess what it has an hcm.....no 3 relays!...a headlight control module....I was dumb founded........and theres no appearance of an collision repair to the nose of my car.....

antfarmer2

Open the hood and try it might just be blocked by something. Then clean the contact points.

hcbph

I had a light hang up on a cable once on my 86. One went down while the other hung. If it's only one then I'd suspect that, if both I'd think it was something else. Just a comment.

Buick350X

Just sayin if you could put that in a pill. you'll be rich. cause who really wants it to go down.