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ECM Harness Resistance

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

Fig 1: Identifying ECM Connector J1 Terminals - 2.2L (1 Of 4)
G00134152Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying ECM Connector J1 Terminals - 2.2L (2 Of 4)
G00134153Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying ECM Connector J1 Terminals - 2.2L (3 Of 4)
G00134154Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying ECM Connector J1 Terminals - 2.2L (4 Of 4)
G00134155Courtesy of GENERAL MOTORS CORP.
Fig 5: Identifying ECM Connector J2 Terminals - 2.2L (1 Of 4)
G00134156Courtesy of GENERAL MOTORS CORP.
Fig 6: Identifying ECM Connector J2 Terminals - 2.2L (2 Of 4)
G00134157Courtesy of GENERAL MOTORS CORP.
Fig 7: Identifying ECM Connector J2 Terminals - 2.2L (3 Of 4)
G00134158Courtesy of GENERAL MOTORS CORP.
Fig 8: Identifying ECM Connector J2 Terminals - 2.2L (4 Of 4)
G00134159Courtesy of GENERAL MOTORS CORP.
Fig 9: Identifying ECM Connector J1 Terminals - 3.0L (1 Of 4)
G00140463Courtesy of GENERAL MOTORS CORP.
Fig 10: Identifying ECM Connector J1 Terminals - 3.0L (2 Of 4)
G00140464Courtesy of GENERAL MOTORS CORP.
Fig 11: Identifying ECM Connector J1 Terminals - 3.0L (3 Of 4)
G00140465Courtesy of GENERAL MOTORS CORP.
Fig 12: Identifying ECM Connector J1 Terminals - 3.0L (4 Of 4)
G00140466Courtesy of GENERAL MOTORS CORP.
Fig 13: Identifying ECM Connector J2 Terminals - 3.0L (1 Of 4)
G00140467Courtesy of GENERAL MOTORS CORP.
Fig 14: Identifying ECM Connector J2 Terminals - 3.0L (2 Of 4)
G00140468Courtesy of GENERAL MOTORS CORP.
Fig 15: Identifying ECM Connector J2 Terminals - 3.0L (3 Of 4)
G00140469Courtesy of GENERAL MOTORS CORP.
Fig 16: Identifying ECM Connector J2 Terminals - 3.0L (4 Of 4)
G00140470Courtesy of GENERAL MOTORS CORP.
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