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Home › Chevrolet › 2007 › Optra LS, Automatic › Repair and Diagnosis (Single Page) › Transmission › Automatic Trans › Automatic Transaxle - ZF 4HP 16 - Specifications, Component Locations And Repairs › Repair Instructions › Transmission Control Module Replacement › Removal Procedure

Removal Procedure

    Fig 1: Identifying TCM Wiring Connectors
    GM1290879Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Battery Disconnect Caution .
  1. Disconnect the negative battery cable.
  2. Disconnect the wiring connectors.
  3. Remove the transaxle control module (TCM) from the bracket.
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