K20 Engine Control Module: Programming and Setup

Note:

  • Always verify the module has the newest software available before replacing the module.
  • 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 a battery maintainer or power supply that provides a steady and stable voltage. Do not use a battery charger, as charging voltage will often fluctuate when connected to the vehicle. This may interrupt programing. If a battery maintainer is not available, connect a fully charged 12 V jumper or booster pack disconnected from the AC voltage supply.
  • 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 Incomplete.
  • 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
    • Air Cleaner Life Remaining—If equipped
    • Engine Oil Life Remaining
    • Fuel Filter Life Remaining—If applicable
    • Fuel Injector Flow Characteristic Identification—If applicable
  3. Access the Service Programming System and follow the on-screen instructions for the control module:K20 Engine Control Module
  4. Select—Prepare Control Module for Removal—If applicable
  5. Ignition/Vehicle & All vehicle systems » Off
  6. Replace the component:K20 Engine Control Module
  7. Ignition » On / Vehicle » In Service Mode

    8. 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
    • If the programming is not successfulRefer to:Control Module References—K56 Control Module Programing

  8. 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.
  9. Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to No.
  10. Perform the SPS function:Immobilizer Learn—If equipped.

    Refer to:Immobilizer System Component Programming

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

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

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

  12. Perform the scan tool learn/reset function:
    • Air Cleaner Monitor Setup—If equipped
    • Barometric Pressure Sensor Reset—If equipped
    • Engine Oil Life Remaining
    • Fuel Filter Life Remaining—If applicable
    • Fuel Pressure Regulator Learn—If applicable
    • Fuel Rail Pressure Relief Valve Learned Values Reset—If applicable
    • Fuel Injector Flow Characteristic Identification—If equipped
    • Intake System Learned Values Reset—If equipped
    • Throttle Body Idle Air Flow Compensation Reset
    • Turbocharger Wastegate Learn—If equipped
    • Turbocharger/Supercharger Boost Control Initial Position Learn—If applicable
  13. Perform the scan tool function:Clear DTCs
  14. Ignition/Vehicle & All vehicle systems » Off
  15. Ignition » On / Vehicle » In Service Mode
  16. Select:K71 Transmission Control Module
  17. Perform the scan tool configuration/reset function:Transmission Service Fast Learn—If available
  18. Perform the scan tool function:Clear DTCs
  19. Ignition/Vehicle & All vehicle systems » Off
  20. Operate the vehicle within the conditions of the customer's concern.

Reprogram Control Module

  1. Access the Service Programming System and follow the on-screen instructions for the control module:K20 Engine Control Module
  2. Ignition » On / Vehicle » In Service Mode

    3. 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

  3. 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.
  4. Perform the scan tool function:Clear DTCs
  5. Perform the scan tool learn/reset function:
    • Barometric Pressure Sensor Reset—If equipped
    • Fuel Pressure Regulator Learn—If equipped
    • Fuel Rail Pressure Relief Valve Learned Values Reset—If equipped
    • Intake System Learned Values Reset—If equipped
    • Throttle Body Idle Air Flow Compensation Reset
    • Turbocharger Wastegate Learn—If equipped
    • Turbocharger/Supercharger Boost Control Initial Position Learn—If equipped
  6. Perform the scan tool function:Clear DTCs
  7. Ignition/Vehicle & All vehicle systems » Off
  8. Ignition » On / Vehicle » In Service Mode
  9. Select:K71 Transmission Control Module
  10. Perform the scan tool configuration/reset function:Transmission Service Fast Learn—If available
  11. Perform the scan tool function:Clear DTCs
  12. Ignition/Vehicle & All vehicle systems » Off
  13. Operate the vehicle within the conditions of the customer's concern.

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. Access the Service Programming System and follow the on-screen instructions for the control module:K20 Engine Control Module

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

  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. Ignition/Vehicle » Off — For greater than 1 min
  7. Ignition » On / Vehicle » In Service Mode
  8. 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. Note: If both controller options below are listed, select K20 Engine and K71 Transmission Control Modules.

    3. 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.
      • 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
  9. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

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