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Home >> Saab >> 2005 >> 9-7X Arc >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 5.3L - Introduction >> Repair Instructions >> Engine Control Module (ECM) Replacement >> Installation Procedure
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Installation Procedure

  1. If the ECM/TCM bracket (1) was previously removed, install the ECM/TCM bracket (1) to the vehicle frame.
    2. Fig 1: Removing/Installing Engine Control Module (ECM) Bracket
    GM1521466Courtesy of GENERAL MOTORS CORP.
  2. Install the ECM/TCM bracket retaining bolts (2).
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Tighten the ECM/TCM bracket bolts.

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

    4. Fig 2: View Of Engine Control Module (ECM) Bracket
    GM1521468Courtesy of GENERAL MOTORS CORP.
  4. If the TCM was previously removed from the ECM/TCM bracket (2), install the TCM (1). Refer to Transmission Control Module (TCM) Replacement in Automatic Transmission - 4L60-E/4L65-E.
    5. Fig 3: Removing/Installing Engine Control Module (ECM) To/From Bracket
    GM1521503Courtesy of GENERAL MOTORS CORP.
  5. Insert the ECM (2) into the retaining slots of the ECM/TCM bracket (1).
    6. Fig 4: Removing/Installing Engine Control Module (ECM)
    GM1521502Courtesy of GENERAL MOTORS CORP.
  6. Secure the ECM (2) to the ECM/TCM mounting bracket ensuring the ECM retaining tabs (1) are fully engaged.
    7. Fig 5: Disconnecting/Reconnecting Engine Control Module (ECM) Electrical Connectors
    GM1521497Courtesy of GENERAL MOTORS CORP.
  7. Connect the ECM electrical connectors (2) to the ECM (1) if previously removed.
    8. Fig 6: Identifying Engine Control Module (ECM) Retainers
    GM1521469Courtesy of GENERAL MOTORS CORP.
  8. Install the ECM/TCM cover (2) to the ECM/TCM bracket (1).
  9. Ensure the ECM/TCM cover retainers (2) are fully engaged with the ECM/TCM bracket (1).
  10. Connect the cooling fan electrical connector.
  11. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  12. If the ECM was replaced the replacement ECM must be programmed. Refer to Control Module References in Computer/Integrating Systems.
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