Thread: Body Control Module?

My 2003 Pontiac Grand Prix se all of a sudden the trunk won't pop and the doors won't lock and unlock when it's put into and out of gear. I think that it still thinks that it is in gear and the trunk won't pop when in gear as everyone knows. How do I test the Body Control Module or whatelse could it be?

Any ideas what would all of sudden to have this problem happen? Can you reflash the BCM?