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HOMESERVICE MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM - 3.9L - INTRODUCTION (2 OF 2)REPAIR INSTRUCTIONSENGINE CONTROL MODULE (ECM) REPLACEMENTREMOVAL PROCEDURE
2006 Pontiac G6 GTP, 2D Coupe, Standard

Removal Procedure

2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Removal Procedure
    Fig 1: View Of ECM
    GM1583653Courtesy of GENERAL MOTORS CORP.

  1. Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.

  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure .
  3. Slide the lever lock to the up position in order to release the connector.
  4. Disconnect the body harness electrical connector from the engine control module (ECM).
    5. Fig 2: View Of ECM Connectors
    GM1583655Courtesy of GENERAL MOTORS CORP.
  5. Slide the lever locks to the up position in order to release the connectors.
  6. Disconnect the engine harness electrical connectors from the ECM.
    7. Fig 3: Removing/Installing ECM
    GM1578456Courtesy of GENERAL MOTORS CORP.
  7. Release the retaining tab located in the battery box lower half using a small screwdriver or other suitable tool.
  8. Remove the ECM by lifting upward after releasing the tab.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.