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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 428 (ENGINE CONTROLS - REMOVAL & INSTALLATION - DIESEL)COMPUTERIZED ENGINE CONTROLSTRANSMISSION CONTROL MODULE (ALLISON)REMOVAL
2004 Oldsmobile Bravada AWD

Transmission Control Module (ALLISON): Removal

2004 Oldsmobile Bravada AWDSECTION Removal
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Remove any debris from the Transmission Control Module (TCM) connector surfaces before servicing the TCM. Inspect the TCM module connector gaskets when diagnosing or replacing the TCM. Ensure that the gaskets are installed correctly. The gaskets prevent contaminant intrusion into the TCM. The ignition must be OFF when disconnecting or reconnecting power to the TCM.

Disconnect the negative battery cable. Remove the TCM cover bolts located on the left side of the radiator shroud. Pull the cover and TCM up and away from the radiator shroud. Push up on the retainers in order to remove the TCM from the cover. Disconnect the TCM electrical connectors and remove the TCM from the vehicle.

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.