Problems after new BCM

[TaylorChevy]

I just replaced the BCM in my 05’ Chevy 2500HD. I re programmed it myself. When the truck fired back up, I now have no power locks, but the windows work, my passenger airbag service light now comes on, and my dash and stereo will not turn off, are these issues that the BCM was not recognizing but now is, or did something go wrong? 

[davester]

Try putting in the old bcm and see how well everything works with it.

[TaylorChevy]

I just tried plugging the old one back in and the truck wouldn’t start, put the new one back in and all problems still there. The old one didn’t look to be trying to re learn again either. 

[davester]

So the old one just totally failed one day, or were you doing something else (reflashing it for example), or you were repairing something?

[silveradosid]

put a battery charger on your truck and try reprogramming, any changes in voltage when programming can cause problems