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Home >> Saturn >> 2007 >> Ion Red Line >> Repair and Diagnosis >> External Pages >> Different car >> Section 162 (Engine Controls And Fuel - 2.4L - Introduction (2 Of 2)) >> Repair Instructions >> Engine Control Module Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Saturn Ion 3. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Engine Harness Electrical Connectors
    GM1651050Courtesy of GENERAL MOTORS CORP.
  1. Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  3. Disconnect the body wiring harness electrical connector (3) from the engine control module (ECM).
  4. Disconnect the engine harness electrical connectors (2) from the ECM.
    5. Fig 2: Identifying ECM
    GM1651051Courtesy of GENERAL MOTORS CORP.
    NOTE: Control module damage may result when the metal case contacts battery voltage. DO NOT contact the control module metal case with battery voltage when servicing a control module, using battery booster cables or when charging the vehicles battery.
  5. Disengage the side retaining tab in order to release the ECM (1) from the bracket.
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