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U code network High severity

U0107 Lost Communication With Throttle Actuator Control Module

The OBD2 code U0107 indicates a loss of communication with the throttle actuator control module, which may affect the vehicle's throttle response and performance

Definition

The OBD2 code U0107 indicates a loss of communication with the throttle actuator control module, which may affect the vehicle's throttle response and performance

Common causes

  • Faulty throttle actuator control module
  • Damaged wiring or connectors
  • Poor electrical connections
  • Failed engine control module (ECM)
  • Software issues or glitches
  • Throttle body issues
  • Corroded terminals
  • Short circuits in the wiring harness
  • Battery or charging system problems
  • Intermittent faults in the communication network

Common misdiagnoses

  • Throttle position sensor failure
  • Accelerator pedal position sensor failure
  • Engine control module (ECM) failure
  • Wiring or connector issues
  • Faulty throttle body
  • Powertrain control module (PCM) issues
  • Battery or charging system problems
  • Grounding issues
  • Software or firmware issues
  • Other communication network faults (e.g., CAN bus issues)

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other trouble codes that may be present. This can provide more context and help identify related issues

  2. 2. Inspect Wiring and Connectors

    Visual Inspection: Check the wiring harness and connectors between the ECM and the TACM for any signs of damage, corrosion, or loose connections

  3. 3. Repair or Replace

    If any damaged wires or connectors are found, repair or replace them as necessary

  4. 4. Check Power and Ground

    Power Supply: Ensure that the TACM is receiving the correct voltage. Use a multimeter to check the power supply to the module

  5. 5. Ground Connections

    Verify that the ground connections for the TACM are secure and free of corrosion

  6. 6. Test the Throttle Actuator Control Module

    If the wiring and connections are intact, the TACM itself may be faulty. You can test the module by

  7. 7. Checking for proper operation using a scan tool

  8. 8. Replacing the TACM with a known good unit to see if the issue persists

  9. 9. Inspect the ECM

    If the TACM is functioning correctly, the issue may lie with the ECM. Check for any signs of damage or failure in the ECM

  10. 10. Reprogram or replace the ECM if necessary

  11. 11. Check for Software Updates

    Sometimes, manufacturers release software updates for the ECM or TACM. Check with the manufacturer or a dealership to see if any updates are available

  12. 12. Clear Codes and Test Drive

    After performing any repairs or replacements, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns

  13. 13. Consult Technical Service Bulletins (TSBs)

    Look for any TSBs related to the specific make and model of the vehicle. Manufacturers may have documented common issues and fixes for this code

  14. 14. Seek Professional Help

    If the issue persists after performing the above steps, it may be necessary to consult a professional mechanic or technician who has experience with the specific vehicle and its systems. By following these troubleshooting steps, you can systematically identify and resolve the issue associated with the U0107 code