LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2000 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Body Control Modules) >> System Tests >> Test B: Scan Tool Does Not Communicate With Class 2 Device >> Diagnostic Aids
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Aids

WARNING: This page is about a different car, the 2002 Pontiac Sunfire, 2002 Chevrolet Cavalier, 2001 Pontiac Sunfire, and 2001 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

Engine will not start when there is a total malfunction of class 2 serial data circuit while engine is not running.

Fig 1: Identifying Radio Harness Connector C1 Terminals
G00041016Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Powertrain Control Module Harness Connectors Terminals
G00041015Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying Instrument Panel Cluster Harness Connector Terminals
G00041014Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying Electronic Brake Control Module Harness Connector Terminals
G00041013Courtesy of GENERAL MOTORS CORP.
Fig 5: Identifying Sensing & Diagnostic Module Harness Connector Terminals
G00041012Courtesy of GENERAL MOTORS CORP.