Diagnostic Aids
WARNING: This page is about a different car, the 2001 GMC Safari and 2001 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1000 may be stored as a history DTC without affecting operation of BCM. If stored only as a history DTC and not retrieved as a current DTC, do not replace BCM. If DTC B1000 is retrieved as both a current and history DTC, replace BCM.