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Parasitic Draw in Room Lamp Fuse, need help

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95AWD6Bolt

15+ Year Contributor
504
2
Dec 2, 2006
South Jersey, New Jersey
I have a parasitic draw that I have narrowed down to the room lamp fuse in my 2g. I am drawing about 65 miliamps according to my multimeter with the key off and the doors closed. I am out of ideas of what it is and am getting extremely frustrated at this point and need help badly.

I have found this manual with circuit diagrams but I am not really sure how to read it. Basically what I need is to know everything that runs off of the room lamp fuse on a 2g so that I can trace it. If someone can please compile a list for me, I would greatly appreciate it.

http://d.scribd.com/docs/1l5s9nof0mq5z8nlkf4t.pdf
 
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Since you narrowed it down to the room lamp fuse....have someone under the hood with the multimeter while your inside the car upside down on the drivers seat and pull 1 fuse at a time...

That will narrow it down even farther there is just too much wiring inside that could be any form of draw...
 
35mA is typical and anything less than 50mA is considered ok. This max, however, is a very loose definition and so should not be taken literally. The point is just to let you know that 0.5A or more is too much. Different and aftermarket ECUs, radios, amps, garage door opener memory, remote starters, and whatever else has been added that always draws a small amount of current may change it. If you really are worried, try disconnecting all these things and remeasure.
 
yes, i am having a problem with the battery draining.

About two weeks ago, the draw was at 75 milliamps and I for it down to 49 after removing gauges and a turbo timer that the previous owner installed.
Yesterday when I went to look at the car again, it mysteriously went up to 177 milliamps and the passenger side window didnt work. I took the panel off and cleaned where the window control switch plugs in and its now down to 65 milliamps.
I read something on here about window switch corrosion but I couldnt find a definitive article or post on it.
 
As Steve said 65mA is not going to drain the battery unless the battery is extremely weak or not holding a full charge. But if you must know where it is first disconnect all aftermarket stuff (do you have aftermarket alarm system?). Disconnect the radio and ECU to see how much of it they draw. I assume you already figured out it's going entirely through the "room lamp" fuse. This fuse supplies many things: auto-cruise ECU, dome light, door ajar light, automatic tranny control module (if have), ECU, ETACS-ECU, foot light, ign key hole light, trunk light, motor antenna, radio, theft alarm,vanity mirror light, garage door opener, door locks, glove box, ign key reminder buzzer, lighting monitor buzzer, power windows, seat belt warning buzzer.
 
As Steve said 65mA is not going to drain the battery unless the battery is extremely weak or not holding a full charge. But if you must know where it is first disconnect all aftermarket stuff (do you have aftermarket alarm system?). Disconnect the radio and ECU to see how much of it they draw. I assume you already figured out it's going entirely through the "room lamp" fuse. This fuse supplies many things: auto-cruise ECU, dome light, door ajar light, automatic tranny control module (if have), ECU, ETACS-ECU, foot light, ign key hole light, trunk light, motor antenna, radio, theft alarm,vanity mirror light, garage door opener, door locks, glove box, ign key reminder buzzer, lighting monitor buzzer, power windows, seat belt warning buzzer.

Yea, it just bothers me with it not being perfect and the battery is extremely weak from not being drained and charged all the time.

THANK YOU very very much for that list!! That is what I have ben looking for for a few months now.

Few last questions.

Did every car come with a dome light? My car has a sunroof and no dome light near it.
What is the lighting monitor buzzer?
 
Are you waiting until the electronics go into "sleep mode?" You generally have to wait 1hr after you start the parasitic draw test in order for this to happen. I don't see an issue with your draw. Yes, 50 miliamps is the "acceptable" amount, but you are barely over that. With a good battery, you shouldn't have a problem even if you only drive the car once every two weeks. If it were me, I would get a new battery. If you don't drive it very ofter you should get a maintenance (trickle) charger.
 
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