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Home >> Chevrolet >> 2004 >> Optra Base, Standard >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission - AISIN (81-40LE) - Repair Instructions >> Repair Instructions >> Transmission Control Module Replacement >> Installation Procedure

Installation Procedure

    IMPORTANT: After replacing the TCM, refer to Service Programming System (SPS) to ensure the module has the latest calibrations.
    Fig 1: Identifying TCM Retaining Bolts
    GM1376108Courtesy of GENERAL MOTORS CORP.
  1. Connect the negative battery cable.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the TCM and retaining bolts.

    Tighten:  Tighten the TCM retaining bolts to 5 N.m (44 lb in)  .

    3. Fig 2: View Of TCM Electrical Connector
    GM1376107Courtesy of GENERAL MOTORS CORP.
  3. Connect the TCM electrical connector.
  4. Connect the negative battery cable.
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