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Home >> Chevrolet >> 2014 >> Cruze Diesel >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 2.0L (LUZ) Diesel - Repair Instructions >> Repair Instructions >> Engine Control Module Replacement >> Removal Procedure
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Removal Procedure

WARNING:

High voltages may occur in Piezo Fuel Injector and control units, Fuel Injectors are usually charged up to 160V and control unit internal voltage is usually 240V, To prevent personal injury and/or component damage disconnect the battery cable.

NOTE:

The special precaution applies also for the engine wiring harness and the fuel injection wire.

  1. Prepare the engine control module for replacement. Refer to Control Module References .
  2. Open the hood.
  3. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  4. Remove the engine sight shield. Refer to Engine Sight Shield Replacement .
  5. Fig 1: Wiring Harness Clips
    GM2190583Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    In order to prevent any possible electrostatic discharge damage to the ECM, do not touch the connector pins.

  6. Unclip the 2 wiring harness clips (2) from the bracket.
  7. Unlock the 2 wiring harness plugs (1) from the engine control module and hang it aside.
  8. Fig 2: Engine Control Module
    GM2191142Courtesy of GENERAL MOTORS COMPANY
  9. Remove the engine control module (1).
    • Unlock the holding clip (2) use a screwdriver.
    • Remove the engine control module (1) out of the bracket.
  10. Fig 3: Engine Control Module Insulator
    GM2191143Courtesy of GENERAL MOTORS COMPANY
  11. Remove the engine control module insulator (1) from the engine control module bracket (2) in arrow direction.

    Unclip the retainer with a screwdriver.

  12. Fig 4: Engine Control Module
    GM2191144Courtesy of GENERAL MOTORS COMPANY
  13. Remove the engine control module (1) from the engine control module bracket in arrow direction.

    Unclip the retainer (2) with a screwdriver.