SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1774 (AUTOMATIC TRANSMISSION - REPAIR INSTRUCTIONS)REPAIR INSTRUCTIONSTRANSMISSION CONTROL MODULE (TCM) REPLACEMENTINSTALLATION PROCEDURE
2004 Oldsmobile Bravada AWD

Installation Procedure

2004 Oldsmobile Bravada AWDSECTION Installation 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. If the ECM/TCM bracket (1) was previously removed, install the ECM/TCM bracket (1) to the vehicle frame.
    2. Fig 1: ECM/TCM Bracket Retaining Bolt
    GM1521466Courtesy of GENERAL MOTORS CORP.
  2. Install the ECM/TCM bracket retaining bolts (2).
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Tighten the ECM/TCM bracket bolts.

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

    4. Fig 2: ECM/TCM Bracket
    GM1521468Courtesy of GENERAL MOTORS CORP.
  4. If the ECM was previously removed from the ECM/TCM bracket (2), install the ECM (3). Refer to Engine Control Module (ECM) Replacement in Engine Controls - 5.3L.
    5. Fig 3: ECM/TCM Bracket
    GM1521496Courtesy of GENERAL MOTORS CORP.
  5. Insert the TCM (1) into the retaining slot of the ECM/TCM bracket (2).
    6. Fig 4: ECM/TCM Bracket
    GM1521482Courtesy of GENERAL MOTORS CORP.
  6. Secure the TCM (2) to the ECM/TCM mounting bracket ensuring the TCM retaining tab (1) is fully engaged.
    7. Fig 5: ECM/TCM Connectors
    GM1521481Courtesy of GENERAL MOTORS CORP.
  7. Connect the ECM electrical connector (1) to the TCM (2) if previously removed.
    8. Fig 6: ECM/TCM Cover & Bracket
    GM1521469Courtesy of GENERAL MOTORS CORP.
  8. Install the ECM/TCM cover (2) to the ECM/TCM bracket (1).
  9. Ensure the ECM/TCM cover retainers (2) are fully engaged with the ECM/TCM bracket (1).
  10. Connect the cooling fan electrical connector.
  11. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  12. If the TCM was replaced the replacement TCM must be programmed. Refer to Transmission Control Module Programming and Setup in Programming and Setup.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.