LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2020 >> Spark LS, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Data Communications >> Diagnostic Information and Procedures >> Scan Tool Does Not Communicate with Vehicle >> Circuit/System Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Description

The K56 Serial Data Gateway Module is used to handle communications between multiple GMLAN busses and functions as a gateway to isolate the secure networks from the unsecured networks. When the K56 Serial Data Gateway Module is not communicating, the scan tool can not communicate with the vehicle.

scientia non olet · About LEMON Manuals