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Home >> Chevrolet >> 2004 >> Optra Base, Automatic >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission - ZF 4HP 16 - Repair Instructions >> Repair Instructions >> Transmission Control Module Replacement >> Installation Procedure
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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 Wiring Connectors
    GM1290879Courtesy of GENERAL MOTORS CORP.
  1. Install the TCM to the bracket.
  2. Connect the wiring connectors.
  3. Connect the negative battery cable.
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