Hey guys, I haven't had to ask anything in a long while but I can't drive my car.

I drive a 91 vert. and it beeps at me. I know, your next answer: search, and search. Well, I did, and it is not beeping in any kind of order. It is continuous and loud, real loud. It compares to my car without mufflers or cats.

This beeping has been fixed before by adding water to the cooling system, but the water is full.

To give you an idea of the surroundings of this problem:
The car thinks the doors are open all the time, and the interior lights stay on. (I have cleaned all connections)
I bought a set of new belts the other day, and they don't seem to be the right ones. There is vibration on the A/C.
Because of the interior lights, I have had to unplug my battery when my car is off. When I don't, the car won't start due to corrosion (comes back after every shut off, apparently from drawing energy for the door lights)

If anyone knows how to fix either the beeping/buzzing, or the interior light situation, I would be grateful.

I would take it to Mazda and get a diagnostics, but today is my only day off work and they can't do it today.

 

The interior lights are powered on one side directly from the fuse.
They light when a door switch grounds.
You must have a rogue ground somewhere, maybe in one of the light fixtures.
If you can't find it - pull the fuse until you can.

The loud annoying buzzer should also light a warning light.
Do all you warning lights come on (self test) when you first turn on the ingnition?

 

not all the lights come on. I'm going to try the fuse.

 

does anybody have a picture of the fuse layout?

 

Here ya be

 

any advice on finding the rogue ground? that fuse controls the radio as well.

 

Couldn't it be something simple like a trashed door switch?

 

man grounds are one of the hardest damn things to find cause they are so pesky. but check the door switch to make sure its not full or corrosion and you said you cleaned alot of the contacts which is good now if there are any ground wire that you can tighen or clean go ahead and do that. but im betting its the switch thats doing that. if not check the ground on the switch. and jsut make sure everything is closed tight.

and you said something about corrosion? where is it? if its on the battery clean it off and put dielectric grease all over it to prevent that. if its somewhere else clean it and replace it.

 

The fuse box and beeping are all covered in the FAQ for FC at the top of this section. Please read that before posting.

And there is a difference between beeping and buzzers.

The loud warning buzzer from the back of the gauges is caused from low coolant or low oil, or redline.

The dome light always on is probably a bad door swith, not a bad ground. I wouldn't even be barking up the bad ground... you have a bad door switch.

Check the door switchs before anything else. Note that a beeping while the car is driving from the drivers kick panel is probably a bad door switch again...

Now if it beeping from behind the dash speaker, then it is probably a power steering problem... but given your description, you have a broken door switch, and are confusing the problem with the buzzer form low coolant that you had once.