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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 462 (ENGINE CONTROLS - REMOVAL & INSTALLATION)COMPUTERIZED ENGINE CONTROLSPOWERTRAIN CONTROL MODULEINSTALLATION
2004 Oldsmobile Bravada AWD

Powertrain Control Module: Installation

2004 Oldsmobile Bravada AWDSECTION Installation
WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Install PCM to intake manifold plenum. Connect harness connectors to PCM. Tighten PCM harness connector bolts to specification. See TORQUE SPECIFICATIONS . Reconnect negative battery cable. If NEW PCM has been installed, PCM MUST be programmed. See PROGRAMMING .



NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  1. Connect the PCM electrical connectors. See Fig 4.
  2. Tighten the PCM electrical connector bolts. Tighten the bolts to specification. See TORQUE SPECIFICATIONS .
  3. Install the PCM. See Fig 3.
  4. Ensure that the PCM mounting tabs are engaged.
  5. Secure the spring latch to the PCM.
  6. Install the PCM cover and cover retainers if previously removed. See Fig 2.
  7. Connect the cooling fan electrical connector. See Fig 1.
  8. Connect the negative battery cable.
  9. If the PCM was replaced the replacement PCM must be programmed. See PROGRAMMING .
Fig 1: Removing & Installing PCM (1 Of 4)
G00253874Courtesy of GENERAL MOTORS CORP.
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.