LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2004 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (Engine Controls - System & Component Testing - 4.3) >> Computerized Engine Controls >> Powertrain Control Module >> PCM Harness Resistance
April 5, 2026: LEMON Manuals is launched! Read the announcement.

PCM Harness Resistance

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition switch to LOCK position. Disconnect PCM and appropriate component harness connectors. Check for open or short circuits between appropriate PCM harness connector terminal and appropriate component harness connector terminal. If harness is open or shorted, repair as necessary.

Fig 1: Identifying PCM Connector C1 Terminals (1 Of 4)
G00147771Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying PCM Connector C1 Terminals (2 Of 4)
G00147772Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying PCM Connector C1 Terminals (3 Of 4)
G00147773Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying PCM Connector C1 Terminals (4 Of 4)
G00147774Courtesy of GENERAL MOTORS CORP.
Fig 5: Identifying PCM Connector C2 Terminals (1 Of 3)
G00147775Courtesy of GENERAL MOTORS CORP.
Fig 6: Identifying PCM Connector C2 Terminals (2 Of 3)
G00147776Courtesy of GENERAL MOTORS CORP.
Fig 7: Identifying PCM Connector C2 Terminals (3 Of 3)
G00147777Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals