Question about 1996 Buick Roadmaster

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96 Buick roadmaster= interior lights stay on while driving

All interior lights remain on while driving ? I needed to remove fuse to prevent draining battery while parked, however, now door locks on door do not work, nor do the side mirror adjustment. Able to lock doors with remote.

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Check to see if the over head light has shorted to ground. EG: touching roof, from weight being put on the roof. EG: Cargo hauler.

Posted on Jun 01, 2009


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1 Answer

Where is the bcm located on a 95 buick roadmaster? My interior lights stay on and I want to troubleshoot by disconnecting the bcm.

Your vehicle has no BCM ! Which interior lights ? dome , courtesy , insturment panel ? Dimable light's ? Stuck door switch ! Find a wiring diagram at ! Do you know how to do basic automotive electrical testing ? Videos on youtube . The wiring diagram is showing a dome courtesy lamp relay , if the contact's were stuck closed the light's would stay on . But there is no BCM .

Dec 04, 2016 | Buick Cars & Trucks

1 Answer

Something is draining the battery

Look for something that does not turn off when it is supposed to such as interior lights that remain on at night or a compartment light that remains on. Any light controlled by a switch may have a defective switch. Your running lights may stay on after you have exited. This is hard to see in daylight

Mar 16, 2013 | 2004 Buick Rendezvous

2 Answers

Why does my 96 Cadillac Eldorado battery keep discharging?

First step have the battery tested, a bad cell can cause a internal drain and kill the battery, if the batt is ok then check for interior lights like visors that stay on or interior light that come on by themselves at night due to defective door switches.

Dec 27, 2012 | Cars & Trucks

1 Answer

Wont crank

Computer or wiring harness if i had to guess

Nov 03, 2012 | 1996 Buick Roadmaster

1 Answer

Interior lights remain on after doors are closed causing battery to drain overnight. When fuse is removed lights go of and battery stays charged.

Check to be sure interior lights are turn off when you are in the vehical.If so check the interior light switches on the doors for proper opperation.

Mar 13, 2010 | 1997 Jeep Grand Cherokee

1 Answer

Passkey light always stays on in my roadmaster

the fuse is located in the fuse block on the far left side of the dash. open the drivers door and the left end of the dashboard pops off. Remove the fuse and reinsert it and it will turn the light off.

Feb 09, 2010 | 1994 Buick Roadmaster

1 Answer

Inside cabin lights stay on

check the relay for the interior lights ... sounds like it is stuck on


Apr 21, 2009 | 1992 Buick Roadmaster

1 Answer

My interior light will not turn off.

Doesn't sound like a fuse, if it were it wouldn't work at all.
Sounds more like the light unit itself.
I don't know a lot about US cars. But I know interior lights can be quite delicate.
If they have been removed for any reason or dismantled to change the bulb they can be a bit difficult to
re-assemble correctly. Ths may cause problems with the switch
If there is a switch on the light unit, try playing around with it when the fault ocurrs.
If this has any effect, it's probably the light unit itself.
The only other thing I can think of is a fault in the door switch, but if it was I'm sure you'd get another warning like a dashlight or buzzer.

Dec 29, 2008 | 1996 Buick Roadmaster

2 Answers

Battery goes dead after car sits for 3-4 days

Parasitic drain? If so, did they run a test light on the negative terminal? Unhook the negative battery cable, run a test light between the negative battery post and the negative (removed) cable end. Does the light come on? If so, remove each fuse, one at a time, when you hit the circuit that is draining, the light will go off.

I have a 95 Buick Roadmaster and it was doing the same thing. It was a broken light in the trunk, the bulb was out, but the electricity was still there. The wire became damaged when my daughter overloaded the trunk. Just a couple of ideas...

Dec 01, 2008 | 1992 Buick Park Avenue

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