2004 Hummer H2 4D Utility PickupFACTORY OEM SERVICE PROCEDURE

Service Programming System (SPS) (Off Board Remote) Procedure

WARNING: This page is about a different car, the 2003 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

For additional SPS information, refer to Service Programming System (SPS) Description  .

IMPORTANT: Ensure the Tech 2(tm) and the terminal are both equipped with the latest software before performing SPS.
  1. Obtain the vehicle identification number (VIN) of the vehicle for which the module is being programmed.
    2. IMPORTANT: The TIS supports service programming with the Tech 2(tm) scan tool only.
  2. Launch the TIS application at the terminal.
  3. Select the Service Programming System.
  4. Highlight the following information on the Select Diagnostic Tool and Programming Process screen:
    • Select Diagnostic Tool-Select Tech 2(tm)
    • Select Programming Process-Identify whether an existing module is being reprogrammed or replaced with a new one.
    • Select ECU location-select Off-Board Programming Adapter.
  5. Select Next.
    6. Fig 1: Connecting Off-Board Programming Adapter (OBPA) To Control Module
    GM819334Courtesy of GENERAL MOTORS CORP.
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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.