Removal Procedure

2004 Oldsmobile Bravada AWDSECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Isuzu Ascender, 2005 GMC Envoy XUV, 2005 GMC Envoy XL, 2005 GMC Envoy, and 2005 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  2. Disconnect the cooling fan electrical connector for additional clearance while removing the TCM.
  3. Fig 1: Locating ECM/TCM
    GM1521469Courtesy of GENERAL MOTORS CORP.
  4. Depress the engine control module (ECM)/TCM cover retainers (2).
  5. Remove the ECM/TCM cover from the ECM/TCM bracket (1).
  6. Fig 2: ECM/TCM Connectors & Bracket
    GM1521481Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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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.