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Home >> Saturn >> 2004 >> Ion Red Line >> Repair and Diagnosis >> External Pages >> Different car >> Section 148 (Engine Controls And Fuel - 2.2L - Introduction (2 Of 2)) >> Repair Instructions >> Engine Control Module Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Saturn Ion 3 and 2007 Saturn Ion 2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of ECM
    GM857196Courtesy 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.
  1. Use the retaining tab to secure the ECM, when installing the ECM to the underhood junction block bracket.
    2. Fig 2: View Of Engine Electrical Center
    GM873343Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Connect the large ECM harness connector (4) to the ECM.

    Tighten:  Tighten the bolt to 4 N.m (35 lb in).

  3. Connect the small ECM harness connector (3) to the ECM.
  4. Connect the negative Battery Cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  5. Program the ECM. Refer to Control Module References in Computer/Integrating Systems.
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