WOMS
U code network High severity

U0573 Invalid Data Received from Vehicle Control Module

The OBD2 code U0573 indicates that the vehicle's control module has received invalid or corrupted data from another control module, which may affect vehicle performance or functionality

Definition

The OBD2 code U0573 indicates that the vehicle's control module has received invalid or corrupted data from another control module, which may affect vehicle performance or functionality

Common causes

  • Faulty Vehicle Control Module (VCM)
  • Corrupted data communication
  • Wiring issues or damaged connectors
  • Faulty sensors sending incorrect data
  • Software glitches or outdated firmware
  • Poor ground connections
  • Interference from aftermarket devices or modifications
  • Low battery voltage or power supply issues

Common misdiagnoses

  • Faulty Vehicle Control Module (VCM)
  • Wiring issues or short circuits
  • Corrupted software or firmware in the VCM
  • Faulty communication lines or connectors
  • Issues with other control modules (e.g., Body Control Module, Engine Control Module)
  • Incorrectly installed aftermarket accessories or modifications
  • Battery or power supply issues affecting module communication

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 about the issue and help identify the root cause

  2. 2. Inspect Wiring and Connectors

    Examine the wiring and connectors associated with the control modules involved. Look for signs of damage, corrosion, loose connections, or frayed wires. Repair or replace any damaged components

  3. 3. Clear Codes and Test Drive

    Clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive. Sometimes, the code may be a temporary glitch that can be resolved by resetting the system

  4. 4. Check Battery and Ground Connections

    Ensure that the vehicle's battery is in good condition and that all ground connections are secure. Poor battery voltage or grounding issues can lead to communication problems between modules

  5. 5. Inspect Control Modules

    If the problem persists, check the control modules involved in the communication. This may include modules like the Engine Control Module (ECM), Transmission Control Module (TCM), or Body Control Module (BCM). Look for signs of damage or malfunction

  6. 6. Update Software/Firmware

    Check if there are any software updates available for the control modules. Sometimes, manufacturers release updates to fix bugs or improve communication protocols

  7. 7. Perform a Network Test

    Use a scan tool capable of performing a network test to check the communication between modules. This can help identify if a specific module is not responding or if there are issues with the communication bus

  8. 8. Check for Short Circuits or Open Circuits

    Use a multimeter to check for short circuits or open circuits in the wiring harnesses related to the control modules. This can help identify any electrical issues that may be causing the invalid data

  9. 9. Consult Technical Service Bulletins (TSBs)

    Look for any TSBs related to the specific make and model of the vehicle. Manufacturers may have issued guidance on known issues that could be relevant to the U0573 code

  10. 10. Seek Professional Help

    If the issue remains unresolved 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 control systems. By following these troubleshooting steps, you can systematically identify and address the underlying cause of the U0573 code