K20 Engine Control Module: Programming and Setup
Special Tools

EL-49642 SPS Programming Support Tool

For equivalent regional tools, refer to Special Tools.

Note:

  • DO NOT program a control module unless directed to by a service procedure or a service bulletin. If the control module is not properly configured with the correct calibration software, the control module 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 (DLC). If there is an interruption during programming, programming failure or control module damage may occur.
  • Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. When required 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.
  • Note the engine oil life remaining percentage.
  • If over 14k GVW, program the engine serial number with the scan tool.
  • If unable to complete programming or have questions contact Techlline 1–800–828–6860

Replace and Program Control Module

Note:

  • The Prepare Control Module for Removal function can only be performed when communication with the old control module is still possible.
  • Instances may occur where data is not transferred during the Prepare Control Module for Removal Function

  1. Ignition » On / Vehicle » In Service Mode
  2. Perform the scan tool function:Create Report
    • Engine Oil Life Remaining
    • Fuel Filter Life Remaining—If applicable
    • Fuel Injector Flow Characteristic Identification—If applicable
  3. Install EL-49642 SPS programming support tool.
  4. Access the Service Programming System and follow the on-screen instructions for the control module:K20 Engine Control Module
  5. Select—Prepare Control Module for Removal—If applicable
  6. Ignition/Vehicle & All vehicle systems » Off
  7. Replace the component:K20 Engine Control Module
  8. Ignition » On / Vehicle » In Service Mode

    9. Note:

    • If both controller options below are listed, select K20 Engine and K71 Transmission Control Modules.
    • Refer to:Control Module References—K71 Control Module Programing

  9. Perform the SPS function:
    • K20 Engine and K71 Transmission Control Modules—Follow the on-screen instructions.
    • K20 Engine Control Module—Follow the on-screen instructions.
  10. Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to No.
  11. Perform the SPS function:Immobilizer Learn—If equipped.

    Refer to:Immobilizer System Component Programming

    12. Note: If both controller options below are listed, select K20 Engine Control Module.

  12. Perform the SPS function:K20 Engine Control ModuleSetup—Configuration

    13. Perform any adjustment, programming or setup procedures that are required when a component or module is removed or replaced.Follow the on-screen instructions.

  13. Perform the scan tool learn/reset function:
    • Engine Oil Life Remaining
    • Fuel Filter Life Remaining—If applicable
    • Fuel Injector Flow Characteristic Identification—If equipped
    • Fuel Pressure Regulator Learn—If equipped
    • Throttle Body Idle Air Flow Compensation Reset
    • Turbocharger Wastegate Learn—If equipped
  14. Perform the scan tool function:Clear DTCs

Reprogram Control Module

To reprogram an existing K20 Engine Control Module, perform the following procedure:

  1. Install EL-49642 SPS programming support tool.
  2. Access the Service Programming System and follow the on-screen instructions for the control module:K20 Engine Control Module
  3. Ignition » On / Vehicle » In Service Mode

    4. Note:

    • If both controller options below are listed, select K20 Engine and K71 Transmission Control Modules.
    • Refer to:Control Module References—K71 Control Module Programing

  4. Perform the SPS function:
    • K20 Engine and K71 Transmission Control Modules—Follow the on-screen instructions.
    • K20 Engine Control Module—Follow the on-screen instructions.
  5. Perform the scan tool function:Clear DTCs

    6. Note: If both controller options below are listed, select K20 Engine Control Module.

  6. Perform the SPS function:K20 Engine Control ModuleSetup—Configuration

    7. Perform any adjustment, programming or setup procedures that are required when a component or module is removed or replaced.Follow the on-screen instructions.

  7. Perform the scan tool function:Clear DTCs
  8. Ignition/Vehicle & All vehicle systems » Off

Unsuccessful Programming Recovery

If programming a control module is not successful, perform the following procedure:

  1. Verify the control module, data link connector and programming tool connections are secure and the tool software is up to date.
  2. Ignition » On / Vehicle » In Service Mode
  3. Perform one of the following SPS Programming functions:

    4. Note: If both controller options below are listed, select K20/K71 Engine and Transmission Control Modules.

    • K20/K71 Engine and Transmission Control Modules and follow the on-screen instructions.
    • K20 Engine Control Module and follow on-screen instructions.
  4. Verify the control module programming is successful.
    • If the programming is not successful
    1. Ignition/Vehicle » Off — For greater than 1 min
    2. Ignition » On / Vehicle » In Service Mode
    3. Perform one of the following SPS Programming functions:

      4. Note: If both controller options below are listed, select K20/K71 Engine and Transmission Control Modules.

      • K20/K71 Engine and Transmission Control Modules and follow the on-screen instructions.
      • K20 Engine Control Module and follow on-screen instructions.
      • If the programming is not successfulReplace the appropriate component:K20 Engine Control ModuleorK71 Transmission Control Module
      • If the programming is successful
    4. All OK.
    • If the programming is successful
  5. All OK..

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for control module replacement, programming and setup.