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Power Steering Control Module Programming and Setup

Note: 

   • DO NOT program a control module unless directed to by a service procedure or a service bulletin. If the ECU is not properly configured with the correct calibration software, the ECU will not control all of the vehicle features properly.
   • Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector. If there is an interruption during programming, programming failure or ECU damage may occur.
   • Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. Install the EL-49642 SPS Programming Support Tool to maintain system voltage. If not available, connect a fully charged 12 V jumper or booster pack disconnected from the AC voltage supply. DO NOT connect a battery charger.
   • Turn OFF or disable systems that may put a load on the vehicles battery such as; interior lights, exterior lights (including daytime running lights), HVAC, radio, etc.
   • During the programming procedure, follow the SPS prompts for the correct ignition switch position.
   • Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO.

Replace and Program ECU or Reprogram ECU

To program a replacement or an existing ECU, perform the following procedure:

  1. Install EL-49642
  2. Access the Service Programming System (SPS) and follow the on-screen instructions.

    3. Note: The Prepare Control Module for Programming function can only be performed when communication with the old control module is still possible.

  3. On the SPS Supported Controllers screen, select Electronic Power Steering Control Module - Prepare Control Module for Removal and follow the on-screen instructions.
  4. Replace the Electric Power Steering Control Module
  5. On the SPS Supported Controllers screen, select Electronic Power Steering Control Module - Programming and follow the on-screen instructions.
  6. On the SPS Supported Controllers screen, select Electronic Power Steering Control Module - Setup and follow the on-screen instructions.
  7. At the end of programming, choose the "Clear All DTCs" function on the SPS screen.
  8. With a scan tool, perform the steering angle sensor centering and software endstop relearn. Refer to Power Steering Control Module Calibration
   


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