Envoy 2WD V6-4.3L VIN W (1998)
Body Control Module: Initial Inspection and Diagnostic Overview
Diagnostic Information
Use the Diagnostic Trouble Code (DTC) tables in this section in order to locate a faulty circuit or a component through the process of elimination. The
BCM performs a continual self-diagnosis on certain control functions. A DTC sets when a malfunction is detected by the BCM. The BCM will not turn
the SERVICE ENGINE SOON Malfunction Indicator Lamp (MIL) to the ON position.
Diagnostic System Check - BCM
Body Control Module Diagnostic System Check
