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Home >> Chevrolet >> 2006 >> Optra5 LS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 1.4L DOHC >> Repair Instructions >> Engine Control Module (ECM) Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: View Of Engine Control Module
    GM1289488Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  1. Disconnect the negative battery cable.
  2. Disconnect the engine control module (ECM) wiring harness connector.
  3. Remove the nuts from the ECM mounting bracket.
    4. Fig 2: View Of ECM Mounting Bracket And Bolt And Nut
    GM1289497Courtesy of GENERAL MOTORS CORP.
  4. Remove the ECM mounting bracket with the bolt and the nut.
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