Dome light switch, again! - Team Camaro Tech
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post #1 of 8 (permalink) Old Jan 8th, 06, 08:58 AM Thread Starter
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Question Dome light switch, again!

Weird problem. Only had the car a few weeks, noticed right away the dome light wouldn't go out. Here's the weird part. At first, I would close the drivers door, the light would go out for about 10 seconds, then pop back on? This happened over and over again, would open the door, close it, the lights would go out. Wait about 10 seconds, they would pop back on? Figured it had to be the door pin switch, so I replaced both of them, now, when I depress the button, the lights "dim", but do not go out at all? Passenger and drivers switch act the same way? This is really bugging me, I have a battery cable "quick disconnect" so that I can cut the juice on the car every night, which is a great thing to have anyway, but driving down the road with the dome lights on is really starting to irritate me! I know, I know, it's probably a bad ground somewhere, BUT WHERE???? I HATE ELECTRICAL PROBLEMS!!!!!!!
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post #2 of 8 (permalink) Old Jan 8th, 06, 09:09 AM
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Re: Dome light switch, again!

hey John, start reading my new basics series, and maybe pick up Larry's (69-er) color schematics. Electrical problems are a way of life with near 40 year old cars!

The dome light circuit is a "switched ground circuit. Power is applied to the lights all the time, and they are turned on when the pin switches ground the white wire.

A ground anywhere on the white wire will turn on the lights. The 10 second thing is a puzzler tho... almost like a capaicotr is charging up womewhere or something... One possibility that comes to mind could be a problem with the door buzzer circuit. The drivers side pin switch should have 2 connections on it, one for the courtesy lights, the other for the buzzer. These connections need to be insulated from each other when the switch is "IN" (off)





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post #3 of 8 (permalink) Old Jan 8th, 06, 09:19 AM Thread Starter
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Question Re: Dome light switch, again!

On the drivers side, there were two wires, but the plastic that holds them together BROKE when I pulled it out! I just rigged them together when I put the new switch in, DOH!!!! OK, so since I'm sure this plastic piece I broke that "isolates" the two switches is going to be one of those impossible to find parts, can't I just wire ONE of them to the switch, to get the dome light to go out? If so, which wire? If not, what are my alternatives? Thanks Jim!!!!!
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post #4 of 8 (permalink) Old Jan 8th, 06, 09:20 AM
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Re: Dome light switch, again!

Dang it!!!!!! I had a post all ready to go and it was lost when I tried to post!!! Jim said pretty much what I said, but you might also try disconnecting the head light switch connector, since the switch grounds the white wire too.

Here's the diagram for this circuit:

http://www.myimagehosting.com/album_...aKnA&f_id=2296

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post #5 of 8 (permalink) Old Jan 8th, 06, 09:52 AM
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Re: Dome light switch, again!

yes john, just disconnect the door buzzer wire from the pin switch. Not sure wut color it is, but it's not the white one. The white one is the one you need for the courtesy lights.

That little insulator is part of the switch. It should list for 68 & 69, drivers side only, and have 2 male spade connectors separated by an insulator. I've bought a repro one (from Ricks) and it actually fit.

The other switch lists for both sides of 67 and pass side only 68 & 69, and has a single round bullet connector. I bought 2 of these, one from Rick's and one from D & R, niether fit. They were too long, woulda bent the heck out of my door had I slammed it before noticing. Ended up cleaning and reusing my original.





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post #6 of 8 (permalink) Old Jan 8th, 06, 10:09 AM Thread Starter
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Re: Dome light switch, again!

I just isolated the "other" wire, which was black, from the white wire. Hooked the white wire up only, same thing. Dome lights on all the time. Rats.
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post #7 of 8 (permalink) Old Jan 8th, 06, 10:15 AM
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Re: Dome light switch, again!

Have you tried disconnecting all the switches? Both door switches and the headlight switch connector?

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post #8 of 8 (permalink) Old Jan 8th, 06, 10:16 AM
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Re: Dome light switch, again!

if you disconnect that white wire, do the light go out and stay out unless you open the pass side door?
If so, it has to be that switch.
If not, look to the headlight switch.





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