Body Control Module (BCM) Programming/RPO Configuration: Introduction
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The procedures below are designed to set-up the body control module (BCM) correctly during BCM related service. Before you start, read these procedures carefully and completely.
IMPORTANT:
The following procedures must be followed:
- Read this procedure carefully and completely.
- The BCM will not function properly if the Setup New BCM procedure is not performed.
- Perform the PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS
after successfully finishing the Setup New BCM procedure. If the PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS
procedure is not performed after a BCM replacement, one of the following conditions will occur:
- The vehicle will not be protected against theft by the PASSLOCK system.
- The engine will not crank nor start.