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Home >> Saab >> 2005 >> 9-7X Linear >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 4L60-E/4L65-E - Introduction & Repair Procedures >> Repair Instructions >> Transmission Control Module (TCM) Replacement >> Removal Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Removal Procedure

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  2. Disconnect the cooling fan electrical connector for additional clearance while removing the TCM.
    3. Fig 1: Identifying ECM/TCM cover, bracket & Retainers
    GM1521469Courtesy of GENERAL MOTORS CORP.
  3. Depress the engine control module (ECM)/TCM cover retainers (2).
  4. Remove the ECM/TCM cover from the ECM/TCM bracket (1).
    5. Fig 2: Disconnecting/Reconnecting ECM Electrical Connector
    GM1521481Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Handling ESD Sensitive Parts Notice in Cautions and Notices.
    IMPORTANT: It is not necessary to disconnect the TCM electrical connectors in order to remove the TCM from the ECM/TCM bracket. Only disconnect the electrical connectors if servicing of component requires disconnecting of the electrical connectors.
    IMPORTANT: Remove any debris from around the TCM connector surfaces before servicing the TCM. Inspect the TCM module connector gaskets when diagnosing or replacing the TCM. Ensure that the gaskets are installed correctly. The gaskets prevent contaminant intrusion into the TCM.
  5. Disconnect the TCM electrical connector (1) from the TCM (2)
    6. Fig 3: Identifying TCM Bracket Retainer
    GM1521482Courtesy of GENERAL MOTORS CORP.
  6. Release the bracket TCM retainer (1).
  7. Tilt the TCM (2) away from the ECM/TCM bracket.
    8. Fig 4: Removing/Installing TCM To/From TCM Bracket
    GM1521496Courtesy of GENERAL MOTORS CORP.
  8. Remove the TCM (1) from the TCM bracket (2).
    9. Fig 5: Removing/Installing ECM
    GM1521468Courtesy of GENERAL MOTORS CORP.
  9. Only when replacement of the ECM/TCM bracket (2) is necessary, remove the ECM (3). Refer to Engine Control Module (ECM) Replacement in Engine Controls - 5.3L.
    10. Fig 6: Removing/Installing ECM/TCM Bracket Retaining Bolts
    GM1521466Courtesy of GENERAL MOTORS CORP.
  10. Remove the ECM/TCM bracket retaining bolts (2).
  11. Remove the ECM/TCM bracket (1) from the vehicle frame.
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