WOMS
U code network Medium severity

U2664 Invalid Data Received from Vehicle Dynamics Control Module

The OBD2 code U2664 indicates that the vehicle's control module has received invalid or corrupted data from the Vehicle Dynamics Control Module, which may affect the vehicle's stability and handling systems

Definition

The OBD2 code U2664 indicates that the vehicle's control module has received invalid or corrupted data from the Vehicle Dynamics Control Module, which may affect the vehicle's stability and handling systems

Common causes

  • Faulty Vehicle Dynamics Control Module (VDCM)
  • Poor or damaged wiring/connectors between VDCM and the ECU
  • Corrupted or outdated software in the VDCM
  • Malfunctioning sensors related to vehicle dynamics
  • Communication issues between modules (CAN bus problems)
  • Low battery voltage or electrical issues
  • Grounding issues affecting the VDCM or related components

Common misdiagnoses

  • Faulty ABS module
  • Defective wheel speed sensors
  • Wiring issues or shorts in the harness
  • Malfunctioning engine control module (ECM)
  • Incorrectly calibrated or faulty steering angle sensor
  • Issues with the traction control system
  • Problems with the vehicle stability control system
  • Faulty or corroded connectors in the data communication network

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other trouble codes that may be present. Sometimes, multiple codes can provide more context for the issue

  2. 2. Inspect Wiring and Connectors

    Visual Inspection: Check the wiring and connectors related to the Vehicle Dynamics Control Module (VDCM) for any signs of damage, corrosion, or loose connections

  3. 3. Connector Pins

    Ensure that the pins in the connectors are not bent or corroded

  4. 4. Check the Vehicle Dynamics Control Module

    Functionality: Verify that the VDCM is functioning correctly. This may involve checking for proper operation of the module and ensuring it is receiving power and ground

  5. 5. Software Updates

    Check if there are any software updates available for the VDCM that may address known issues

  6. 6. Inspect Related Modules

    Since the VDCM communicates with other modules, check for issues in related systems (e.g., ABS, traction control, stability control). Look for codes in these modules that may indicate a problem

  7. 7. Test Communication Lines

    Use a multimeter or oscilloscope to test the communication lines (CAN bus) for proper voltage levels and signals. Look for any interruptions or noise in the communication

  8. 8. Check for Ground Issues

    Ensure that all ground connections related to the VDCM and other related modules are secure and free of corrosion

  9. 9. Clear Codes and Test Drive

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

  10. 10. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the specific make and model of the vehicle. Manufacturers may have issued bulletins regarding known issues with the VDCM or related systems

  11. 11. Professional Diagnosis

    If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership. They may have specialized diagnostic tools and knowledge of the vehicle's systems

  12. 12. Replace the Module (if necessary)

    If all other troubleshooting steps fail and the VDCM is determined to be faulty, replacement of the module may be necessary.Conclusion Always refer to the vehicle's service manual for specific diagnostic procedures and specifications. Each vehicle may have unique characteristics that could affect the troubleshooting process