WOMS
U code network Medium severity

U0160 Lost Communication With Audible Alert Control Module

The OBD2 code U0160 indicates that there is a loss of communication with the Audible Alert Control Module, which may affect functions related to alerts and notifications in the vehicle

Definition

The OBD2 code U0160 indicates that there is a loss of communication with the Audible Alert Control Module, which may affect functions related to alerts and notifications in the vehicle

Common causes

  • Faulty Audible Alert Control Module
  • Damaged wiring or connectors
  • Corroded terminals
  • Blown fuse
  • Faulty body control module (BCM)
  • Software issues or glitches
  • Poor ground connection
  • Intermittent electrical issues

Common misdiagnoses

  • Faulty wiring or connectors
  • Defective body control module (BCM)
  • Malfunctioning instrument cluster
  • Issues with the audio system
  • Problems with the powertrain control module (PCM)
  • Faulty sensors related to the alert system
  • Battery or charging system issues
  • Software glitches or updates needed in the control modules

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 the Wiring and Connectors

    Visual Inspection: Check the wiring harness and connectors related to the Audible Alert Control Module for any signs of damage, corrosion, or loose connections

  3. 3. Connector Pins

    Ensure that the pins in the connectors are not bent, corroded, or pushed back

  4. 4. Test the Audible Alert Control Module

    If accessible, test the Audible Alert Control Module for proper operation. This may involve checking the power and ground connections to the module

  5. 5. Use a multimeter to verify that the module is receiving the correct voltage

  6. 6. Check for Communication Issues

    Use a scan tool to check if the Audible Alert Control Module is communicating with the vehicle’s network. If it is not responding, it may be faulty

  7. 7. Check the CAN (Controller Area Network) bus for any issues. This may involve checking other modules for communication errors

  8. 8. Inspect Fuses

    Check the vehicle’s fuse box for any blown fuses that may affect the Audible Alert Control Module or related systems

  9. 9. Perform a Hard Reset

    Disconnect the vehicle’s battery for a few minutes to reset the vehicle’s computer systems. Reconnect and see if the code reappears

  10. 10. Update Software/Firmware

    In some cases, a software update for the vehicle’s ECU may resolve communication issues. Check with the manufacturer for any available updates

  11. 11. Check for Environmental Factors

    Ensure that there are no environmental factors (like moisture or extreme temperatures) affecting the module or its connections

  12. 12. Consult Technical Service Bulletins (TSBs)

    Look for any TSBs related to the specific make and model of your vehicle. Manufacturers may have issued guidance on common issues related to the U0160 code

  13. 13. Replace the Module (if necessary)

    If all other troubleshooting steps fail and the module is confirmed to be non-functional, consider replacing the Audible Alert Control Module.1

  14. 14. Professional Diagnosis

    If you are unable to resolve the issue, it may be best to consult a professional mechanic or dealership for a more in-depth diagnosis.Conclusion Always remember to take safety precautions when working on a vehicle, and if you are unsure about any step, it is advisable to seek professional assistance