CAR OBD CODES
U2005network

U2005 – Audio Rear Integrated Control Panel Unit is Not Responding

What does U2005 mean?

U2005 is a manufacturer-specific OBD-II diagnostic trouble code in the Network (User) category. Its definition is: Audio Rear Integrated Control Panel Unit is Not Responding. Network codes (U-codes) cover vehicle communication network issues including CAN bus, module communication failures, and data link faults.

Code breakdown

SystemU — Network (User)
TypeManufacturer-specific code (meaning may vary by vehicle make and model)

Common symptoms

  • One or more modules may stop communicating, causing multiple warning lights
  • Features that depend on module-to-module data may behave erratically or stop working
  • Intermittent electrical faults are common with communication (U) codes

How to diagnose

  1. 1Scan all modules; U-codes often point to a communication bus rather than one part.
  2. 2Inspect the CAN bus wiring, connectors, and grounds for damage or corrosion.
  3. 3Look for a module that has lost power or ground, which can take down the whole bus.
  4. 4Check for water intrusion or previous repairs at connectors.
  5. 5Clear codes and monitor whether communication is restored.

Severity varies by code and vehicle. Some codes are minor, while others can affect drivability or safety. When in doubt, consult a qualified technician.

Related codes

U2001U2002U2003U2004U2006U2007U2008U2009
Back to all Network Codes →

This information is provided for general reference only and may vary by manufacturer, model, and year. It is not a substitute for professional diagnosis or repair.