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Home › Chevrolet › 2006 › Uplander LT, 3.9 1 › Repair and Diagnosis › Engine Performance › System › Engine Controls - 3.9L - Introduction (2 Of 2) › Repair Instructions › Engine Control Module Replacement › Installation Procedure

Installation Procedure

    Fig 1: Identifying Battery & Powertrain Control Module (PCM)
    GM1544730Courtesy of GENERAL MOTORS CORP.
  1. Connect the engine harness electrical connectors (4) to the ECM.
  2. Install the ECM (2) to the air cleaner cover.
  3. Install the air cleaner assembly cover.
  4. Install the air cleaner cover (1) to the air cleaner assembly (3) and tighten the cover screws.

    Tighten:   Tighten the screws to 4 Nm (35 lb in).

  5. Install left sheet metal diagonal brace. Refer to BRACE REPLACEMENT - SHEET METAL DIAGONAL
  6. Connect the negative battery cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE .
  7. If a new ECM is being installed, program the EEPROM. Refer to Control Module References .
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