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Home >> Cadillac >> 2002 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 220 (Engine Controls - System & Component Testing - 8.1L) >> Computerized Engine Controls >> Powertrain Control Module >> PCM Harness Resistance
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PCM Harness Resistance

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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 3)
G00169577Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying PCM Connector C1 Terminals (2 Of 3)
G00169578Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying PCM Connector C1 Terminals (3 Of 3)
G00169579Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying PCM Connector C2 Terminals (1 Of 3)
G00169580Courtesy of GENERAL MOTORS CORP.
Fig 5: Identifying PCM Connector C2 Terminals (2 Of 3)
G00169581Courtesy of GENERAL MOTORS CORP.
Fig 6: Identifying PCM Connector C2 Terminals (3 Of 3)
G00169582Courtesy of GENERAL MOTORS CORP.
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