Test Description

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

3. This step checks the keyless entry serial data circuit for voltage supplied by the body control module (BCM).

Fig 1: DTC B3102 (1 Of 2)
Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC B3102 (2 Of 2)
Courtesy of GENERAL MOTORS CORP.