i have 05 silverado i changed battery/alternator all warning lights are on,radio lost power,door locks and windows stopped working,i wiggled key around while it was running and nothing.can anyone tell me what this could be,i dont want to keep replacing parts n not fix problem
thanks for tour help
marc

 

check for codes set in the bcm and ipc modules.
post the codes.

 

do you think it could be bcm problem?a couple of people had this issue wirh this as the problem part. i dont have any to scan for codes.
thanks
marc

 

no idea without codes. Most of the items mentioned that lost power are controlled by the bcm. I wouldn't replace anything without evidence of a fault in the bcm. Find a way to get the codes read.