WOMS
U code network Medium severity

U016A Lost Communication With Global Positioning System Module

The OBD2 code U016A indicates that there is a lost communication issue with the Global Positioning System (GPS) module in the vehicle, meaning the vehicle's control module is unable to receive data from the GPS module

Definition

The OBD2 code U016A indicates that there is a lost communication issue with the Global Positioning System (GPS) module in the vehicle, meaning the vehicle's control module is unable to receive data from the GPS module

Common causes

  • Faulty GPS module
  • Damaged wiring or connectors
  • Poor electrical connections
  • Software issues or bugs
  • Corroded terminals
  • Low battery voltage
  • Interference from other electronic devices
  • Faulty vehicle control module (VCM)

Common misdiagnoses

  • Faulty GPS module
  • Wiring issues or shorts
  • Faulty vehicle control modules
  • Software glitches in the vehicle's computer
  • Battery or power supply problems
  • Corrupted data or settings in the vehicle's system
  • Issues with the vehicle's CAN bus communication
  • Faulty or damaged connectors and terminals

Troubleshooting steps

  1. 1. Check for Other Codes

    Use an OBD-II scanner to check for any additional trouble codes. Sometimes, multiple codes can provide more context about the issue

  2. 2. Inspect Wiring and Connectors

    Visual Inspection: Check the wiring and connectors related to the GPS module 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 GPS Module

    Location: Identify the location of the GPS module in your vehicle and inspect it for physical damage

  5. 5. Functionality

    If possible, test the GPS module to ensure it is functioning correctly. This may require specialized equipment or replacement with a known good unit

  6. 6. Inspect the Vehicle’s Power Supply

    Fuses: Check the fuses related to the GPS module and the vehicle’s communication network. Replace any blown fuses

  7. 7. Power and Ground

    Verify that the GPS module is receiving proper power and ground signals

  8. 8. Check for Software Updates

    ECU Updates: Check if there are any software updates available for the vehicle’s ECU that may address communication issues

  9. 9. GPS Module Firmware

    If applicable, check for firmware updates for the GPS module itself

  10. 10. Scan for Communication Issues

    CAN Bus Communication: Use a scan tool to check the communication on the CAN bus. Ensure that other modules are communicating properly

  11. 11. Network Integrity

    Look for any signs of network integrity issues that could affect communication with the GPS module

  12. 12. Reset the System

    Clear Codes: Clear the trouble codes using the OBD-II scanner and see if the code returns after a test drive

  13. 13. Battery Disconnect

    Disconnect the vehicle battery for a few minutes to reset the system, then reconnect and check for codes again

  14. 14. Consult Technical Service Bulletins (TSBs)

    Look for any TSBs related to the GPS module or communication issues for your specific vehicle make and model. Manufacturers may have issued guidance on known issues

  15. 15. Professional Diagnosis

    If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership. They may have access to advanced diagnostic tools and resources.Conclusion By following these troubleshooting steps, you can systematically identify and address the cause of the U016A code. Always refer to your vehicle’s service manual for specific procedures and specifications related to your make and model