2022-2024 Audi Q5 DTC U060B00 Lost Communication

Symptoms of DTC U060B00

Owners of 2022-2024 Audi Q5 vehicles may experience a check engine light illumination if their vehicle registers the diagnostic trouble code (DTC) U060B00. This specific code points to a critical communication error within the vehicle's electrical system. The presence of this DTC suggests that the engine control unit is unable to properly communicate with the Turbocharger/Supercharger Boost Sensor "A".

This communication loss can impact engine performance and efficiency, as the boost sensor provides vital data for managing turbocharger or supercharger operation. While the primary symptom is often just the check engine light, it's crucial to address the underlying cause to prevent potential performance degradation or further issues.

Fault Codes

The primary fault code associated with this issue is:

This code specifically identifies a "Lost Communication With Turbocharger/Supercharger Boost Sensor "A"" problem with the data link between the engine control module and the boost sensor. The system expects a constant data stream from this sensor to accurately control boost pressure.

Diagnosis and Trigger Conditions

Diagnosis for the Audi Q5 DTC U060B00 focuses on the physical integrity of the wiring and connections. Technicians are instructed to carefully inspect the wires and pins at the G31 component for any signs of excess tension or damage. This includes looking for chafing, cuts, corrosion, or improperly seated pins that could interrupt the electrical signal.

The issue is triggered when the vehicle's control module detects a persistent absence of expected communication from the Turbocharger/Supercharger Boost Sensor "A". This can be caused by physical damage to the wiring harness, a faulty connector, or in some cases, an internal fault within the G31 component itself, though wiring is the primary focus of this guidance.

Repair Procedure Summary

Addressing the Audi Q5 DTC U060B00 involves a structured diagnostic and repair process to ensure the root cause is correctly identified and resolved. The procedure is designed to be thorough, requiring detailed documentation before any repair is performed.

First, technicians must confirm that the vehicle's model, engine code (specifically the DMSA engine), and the DTC U060B00 align with the criteria for this specific service topic, "Q5 - U060B00 no com to G31". This ensures the correct diagnostic path is followed. Next, a meticulous inspection of the wires and pins at the G31 component is required. This inspection aims to identify any excess tension or physical damage to the harness or connectors that could lead to the lost communication.

Crucially, a Technical Assistance Center (TAC) case must be created for the V4P topic. This case will serve as a record of the findings and will require photographic evidence. Technicians are instructed to attach photos and detailed documentation that clearly show the original routing of the harness, including the connector still plugged in, and any damage discovered. Photos of the harness routing back to the main branch are also required if accessible. Repair work should only proceed after the TAC has reviewed the submitted documentation and provided approval. Once the repair or modification is completed, additional photos of the final work must be uploaded to the TAC case. This rigorous process ensures accountability and proper resolution of the communication fault.

Important Warnings for Technicians and Owners

Audi emphasizes the importance of using the most current information for these types of repairs. Technicians are specifically advised that the information requested in these worksheets updates frequently. Therefore, they must always use the latest worksheet available on Elsa2Go, Audi's electronic service information system, to ensure they have the most up-to-date diagnostic and repair instructions.

Furthermore, when submitting a WEB ticket to the Technical Assistance Center (TAC), it is critical to include all information requested in the worksheet upfront. Failing to provide complete documentation can delay the review process and the approval for repair, potentially extending the time your Audi Q5 is out of service. Owners should be aware that their dealership will follow these strict guidelines to properly diagnose and repair the Audi Q5 DTC U060B00.

Source: NHTSA ID: 11002297