Service Programming Methods

2004 Oldsmobile Bravada AWDSECTION Service Programming Methods
WARNING: This page is about a different car, the 2003 Pontiac Grand Prix, 2003 Chevrolet Malibu, and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

The 4 methods of programming a PCM and the proper tools for each method are as follows:

  • Remote Programming  - The Tech 2® or other scan tool, Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software. The Tech 2® or other scan tool is used as an interface between the vehicle and the Techline Terminal or a personal computer. See SERVICE PROGRAMMING SYSTEM REMOTE PROCEDURE .
  • Pass Thru Programming  - The Tech 2® or other scan tool, Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software. The Tech 2® or other scan tool is used as an interface between the vehicle and the Techline Terminal or a personal computer. See SERVICE PROGRAMMING SYSTEM PASS-THRU PROCEDURE .
  • Off-Board Remote Programming, vehicle NOT available  - The Tech 2® or other scan tool, Off-Board Programming Adapter (OBPA), Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software. The Tech 2® or other scan tool is used as an interface between the vehicle and the Techline Terminal or a personal computer. See SERVICE PROGRAMMING SYSTEM OFF BOARD REMOTE PROCEDURE .
  • Off-Board Pass Thru Programming  - The Tech 2® or other scan tool, Off-Board Programming Adapter (OBPA), Techline Terminal or a personal computer equipped with General Motors Corporation authorized programming software. The Tech 2® or other scan tool is used as an interface between the vehicle and the Techline terminal or a personal computer. The control module is NOT installed in a vehicle. See SERVICE PROGRAMMING SYSTEM OFF BOARD PASS-THRU PROCEDURE .
All 4 methods may not be available for every vehicle.

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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.