1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Dome light + door buzzer always on

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Old 04-05-09, 09:24 PM
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Dome light + door buzzer always on

So my dome light lens broke off last week and I managed to fix it with some epoxy/double sided tape. I was also messing around with my mirror, which was loose and is what caused the lens to break in the first place. Now I've got this issue with the dome light being on constantly. I've checked by manually pushing both of the door switches and the light won't go off (unless I physically turn the dome light off). As an added bonus it looks like this has caused the door ajar buzzer to be constantly going off (gets annoying really fast). I'm guessing I'm completing the circuit for the dome light somewhere on the mirror assembly (which would explain why the light doesn't go off when I push the switch in) and I was wondering if anybody has any advice before I take the thing apart.

Luis
Old 04-05-09, 10:40 PM
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Odds are you've pinched a wire, or maybe cut into the insulation with a screw. Easy to do; not much room up there.
Old 04-06-09, 10:43 AM
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Could be a bad pin switch (door switch) isnt completing the circuit.
Old 04-06-09, 12:33 PM
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Since you say your were fooling with it, its probably something to do with that work on the mirror. Somethings pinched or shorted I'm sure. Remember to make sure the slack from the wires up in the roof doesn't get pinched by the mirror as you screw it back up there. Its tricky because I recently added some stuff around the mounting to make my mirror stop wiggling while driving so I could see out of it better and it was easy to get that set of wires pinched up there.
Old 04-06-09, 03:02 PM
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Definitely sounds like a circuitry issue. And yeah its probably due to your mirror work. Could be worse though, my sister had an old Buick that every time you honked the horn the dome light would come on and the doors would lock. At least your two problems are connected haha
Old 04-06-09, 03:08 PM
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Originally Posted by 88blkiroc
Could be a bad pin switch (door switch) isnt completing the circuit.
Could be.

The first-gens use a plastic plunger switch down in the lower rear corner of the doorframe, rather than the traditional auto pin switch. Works pretty much the same way, though: The door switch shorts the lead to ground when the door is open.

It's hard, but not impossible, for the switch to stay shorted when the door is physically closed... unless the oval rubber stopper on the door is missing. That stopper pushes the switch in. If it's missing, the switch circuit stays closed.

Check to see if the rubber stopper is missing from either or both doors.
Old 04-06-09, 06:43 PM
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Thanks for the replies guys, I'm going to take a look at the mirror once I get home from work.
Old 04-06-09, 10:55 PM
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Thanks everyone for your help, I took a look at the mirror and the thick plastic cover that protects the connector had slipped off leaving it exposed and in contact with one of the screws, which was shorting the circuit. I just slipped the plastic cover back in place and tucked it away while putting the screws back on, and everything works as it was intended.
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