Hey, gang! I'm wanting to know where the body control module is located on my '99 Cavalier, since I have an idea that it'* what maybe causing my interior & trunk lighting issue, which I still haven't figured out, yet, so, if anyone can help me locate this, please let me know. Thanks, all!

looks to be hidden to the left of the brake pedal.

Thanks, dude! It looks like it'* easy to replace, so, hopefully, I shouldn't have any trouble with it...lol

robert to the rescue again

gonna start calling you captain diagram lol

don't give the mods any funny ideas....

that would be priceless though lol

indeed. i can't say i would have expected it.

Ok, gang, I went and took my Cavalier to a local Chevrolet dealer for a free oil change, and, I asked the service writer about my lighting issue, and, told me that there'd be a $117 diagnostic charge just to look at it....wth?? I did look at the module to the left of the brake pedal under my dash, and, it said something about "ABS" on the front of the module. Would this have something to do with my interior & trunk lights?

Even if you changed the body control module - you would still have to take it in for a service call to have it connected to the TECH II and have the program reflashed.

Body control module is also connected to the radio and the dash controls - so if you changed your radio you will need a module to take the place of the factory radio or relocate the radio to a different place in the vehicle to have the vehicle run right. I see it all the time.