Take your car to a Chevy Dealer
2002 c/v has aligting control module that controls grounds to all lighting in the vehicle
just unplug it but do not have the car on. Also you will have to get it programed.
this link will give u your answer http://www.ford-trucks.com/forums/647209-4x4-control-module-4x4-flash-problem-3.html
The 4x4 control module is located behind the kick panel in the passenger side floor board. The module simply unplugs and you plug the new one in.
The 2002 Acura airbag control module is located on the firewall in the engine compartment. The airbag control module will be on the drivers side of the firewall.
Replace the fuse and the relay called the CCRM (Constant Control Relay Module).
Powertrain Control Module
How to replace intrument panel lights on 2002 cadillac escalade
The airbag control module in a 2002 Saturn SC2Êis located underneath the center console. It is the yellow connector behind the shifter.
"How do you replace the fan control switch on a 2002 Grand Prix?"
See link below.