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Home >> Saturn >> 2002 >> L300 >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (Engine Controls - System & Component Testing) >> Computerized Engine Controls >> Engine Control Module >> ECM Harness Resistance
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ECM Harness Resistance

WARNING: This page is about a different car, the 2003 Saturn LW300 and 2003 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.

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

Fig 1: Identifying ECM Connector C1 Terminals (1 Of 3)
G00252344Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying ECM Connector C1 Terminals (2 Of 3)
G00252345Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying ECM Connector C1 Terminals (3 Of 3)
G00252346Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying ECM Connector C2 Terminals (1 Of 3)
G00252347Courtesy of GENERAL MOTORS CORP.
Fig 5: Identifying ECM Connector C2 Terminals (2 Of 3)
G00252348Courtesy of GENERAL MOTORS CORP.
Fig 6: Identifying ECM Connector C2 Terminals (3 Of 3)
G00252349Courtesy of GENERAL MOTORS CORP.
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