LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2021 >> Envision Preferred, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Data Communications - Diagnostic Information And Procedures (1 Of 2) >> Diagnostic Information and Procedures >> DTC B1A1B (K56 Serial Data Gateway Module) >> Circuit/System Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Description

The Ethernet bus 2 is used to communicate between K56 Serial Data Gateway Module and A11 Radio. This Ethernet harness consists of a single twisted copper pair of wires (circuits 4757 & 4758) from point to point.

scientia non olet · About LEMON Manuals