The BCM is basically the "brain" of the car. It controls functions such as door locks, windows, radio, dash lights & gauges. It also works with your PCM to manage engine functions.
Mine recently went out and it caused the dash lights and gauges to "go out" and come back on like you just started it up. The engine performed fine, but the dash didn't. While doing this, the windows, radio and door locks become disabled. The "retained power accessory" relay was being switched on and off by the BCM.
If you need one, do a search on "ACDelco 15235418." That is the OEM part number. I got mine (new) from Amazon.com and they are also available from RockAuto and BrightAuto. A dealership will charge upwards of $300 plus labor for installation and programming. Online, I got mine for $173 including shipping. If you can get one online it will save you big $$$. And no, you cannot "reprogram" a used one from a junkyard. Once they're programmed, they're programmed.
Replacing one by yourself is not for the faint of heart. It requires removing the radio trim, console trim (between the seats) and the fuse block. The BCM is mounted to the top of the fuse block. This is all located underneath the radio and climate control cluster on the floor.
Good luck!
in the dash above the glove box
Take your car to a Chevy Dealer
How do I test body control module and is it hard to do..
above the radio under the center panel
below left side of instrument panel
just unplug it but do not have the car on. Also you will have to get it programed.
It doesn't have a body control module.
How do I test body control module and is it hard to do..
The body control module can have everything to do with it. If the engine computer and the body control module do not have communication between one another than the engine will start then die after 2 sec.
It is called a throttle body control module. It is in the engine compartment on the top of the engine.
The body control module is located behind the glove box.
where is the location of the body control module on a 1998 grand am se