Question about 1998 Buick LeSabre
The problems you are having are monitored and controlled by a central electronic module in this car called the "BCM" (Body Control Module) whenever there is a system malfunction a code is set in the module to identify the section of the body electronics that needs diagnosis/testing. So the very first step in diagnose and repair of any problem like this is to have the GM dealer test the BCM for "B" series fault codes, "B" is for body and there are about 100 such fault codes. This testing requires a special electronic system scanner called a TECH II, or it equivalent that is made by Snap-on tools and other major professional tool manufacturers. The scanner is very expensive about $1500.00 so have the test run is really the only option, but you must have the BCM test run to even begin to understand the problem here. I am sorry but there is very little a laymen can do to fix this type of problem, you need the scanner and then a set of factory service manuals to understand how to diagnose what the scanner turns up in memory as body fault codes.
Posted on May 23, 2011
Recheck the fuses on the drivers side, under the hood and on the passenger's side.Remove the fuse out and check visually, test it with continuity tester.Many a times fuse looks good but when you test it with continuity tester it checks out faulty.Remove all the fuses one by one and check and reinsert.
-------- Disconnect the battery wire for a minute then reconnect and check.Also check wire harnesses behind the glove box on the passenger's side , if any of the wire is getting loose or if any two wires getting in contact with each other or any metal surface then it shorts.So lift the wires one by one and check visually.There might be loose or cut in any wire causing this.
------------ If all this checked ok, then it can be the problem with body control module.Its called BCM. The BCM is located Inside the car, passenger side, under the glove compartment.Under Right Side Of Instrument Panel, Near Glove Compartment .----------- It has to be checked and replaced.--------- This should help.thanks.Helpmech.
Posted on May 23, 2011
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Posted on Jan 02, 2017
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