BCM (Body Control Module) Issues?

[GMac1969]

Like Bill said the ignition switch may be causing your problem. A bad ignition switch may also cause the scanner to PCM communication problem.

I wouldn't rule out the DRL module as well IMHO.

Thanks for all the tips. Time to get my hands dirty and see what comes up. This is absolutely great to have this feedback. Could have helped me a LOT a long time ago when I shelled out a crap-load of money to have OTHER people do the work that I could have done... :-)

[GMac1969]

Pulled and replaced Headlight Switch but that did not solve my problem. I figured it wouldn't since the switch was in perfect condition...no heat, no signs of melting, etc. Back to the question of the BCM. As well, if I purchase one, will it need to be reprogrammed?

[Rico]

Pulled and replaced Headlight Switch but that did not solve my problem. I figured it wouldn't since the switch was in perfect condition...no heat, no signs of melting, etc. Back to the question of the BCM. As well, if I purchase one, will it need to be reprogrammed?

Just get a BCM at a local yard. Don't forget about the DRL module...may just want to pull the plug on it.

[brian1970]

i have a 2004 pontiac gandprix with the 3.8 motor it was stolden pretty muched stripped i put motor tranny computer from another car in it pretty much done but it wont engage starter i tryed to reset theft it wont or not sure thats it say starter shut down due to theft system took it to garage was told its the bcm maybe because computer wont hook up to it to tell whats wrong