Hey everyone...

You'll have to forgive me if I'm ranting off or if this is a stupid question. On top of working my regular 60 hour weeks, I've been up till 1am every night trying to get my car back together for the weekend.

So, last night I put my dash back together. I go to stick the **** back into the headlight switch and it would catch. I ended up taking the plastic pc off the steel shaft of the know, putting it in while the dash is apart (yes I took the dash back apart) and putting everything back together only to put the plastic **** back on in the end. All this only costed me skin from both my index and middle fingers. I'm not impressed.

I had tested the switch before putting the dash back together and the lights off, on and back off again no problem. I put everything back together and tested again and the lights turned on.

The problem is, when I turned them off, the lights themselfs, the bulbs, they turn off but the motors do nothing. The lights won't flip back down. I hear a loud smacking sound like when you flic a big power switch but the motors don't work in either direction, on both side.

I'm a litte confused after reading some other posts. None of my fuses are burnt but they wouldn't be fused in the dash board anyways. Do I have relay problem? Is it my switch? (Switch is brand new)

My car is an 84. I'm just hoping there's an easy answer so I can order parts ASAP.

Thanks ahead of time for all your help people.

 

I have to admit, I thought for sure I would have gotten a few replies by now.

I took a look at my original post and I must of been fuming. I wasn't writing very well.

So I took the wiring diagrams, without assistance, and started applying electrical theory that I found on the internet.

So both light bulbs go on and off. Light doors are stuck open, the will not close when the switch is in the off position.

Here's what I did.

To rule out an light door motor failure (although its highly unlikely that both would fail at the same time) I checked if there was power running to them by using a test light and testing the wires at the plug near the light. In the on position I had power but in the off position I did not at the appropriate wires. This would indicate that the problem is before the light motor.

I then took my Multimeter and tested, with the battery disconnected, the fusible links involved in the system. This was done by simply touching the + wire at the battery and touching the red wires going into the relays. All of them provided an appropriate reading indicating that the fusible links were still good.

To rule out any relay failure, I then plugged the battery back in and left the light switch in the "Off" position. This would provide the grey wire going to the isolation relay (4 wires) with voltage. I tested it with my test light. No Voltage. Being that the wire runs directly from the switch, I would have to take the dash apart again and inspect the switch which is what I didn't want to do in the first place.

I took the dash pad off and there it was, simply, the grey wire going to the switch was unplugged. It must have been loose and when I started the car to test the switch (when it originally worked) afterwards, it must of shaken out. I took the appropriate measures to assure that this would not happen again and I finished putting my car back together.

The lesson I learned. There's never really an easy solution. You have to sit down, understand the system and start checking things to eliminate. I guess had I payed more attention to other electrical problem posts, I would of learned this earlier!

Thanks guys.

 

Glad you got it fixed and posted the solution! I've had my headlight woes, as well.

It's never a question with corvettes "if" you'll have headlight problems, it's "when".

Matthew

 

Great that you found your problem!

Kevin