Scan Tool Data Definitions
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
RFA Serial Data Link: The scan tool displays Active/Inactive. The state of the keyless entry serial data circuit as commanded by the body control module (BCM).