2022-2024 Audi Q5 EPC Light P060C00 U041600 TSB

Owners of 2022-2024 Audi Q5 vehicles may experience an illuminated EPC light and a message indicating a drive system fault in the instrument cluster. These symptoms are linked to specific diagnostic trouble codes (DTCs) and are addressed by Audi Technical Service Bulletin (TSB) 2076356/3.

This TSB, identified as 2076356/3, outlines a software-related issue within the engine control unit that triggers these warnings. Audi has released an updated software version to correct the condition.

Symptoms

If you own a 2022, 2023, or 2024 Audi Q5, you might observe the following issues:

• The "EPC light is on" in your dashboard.
• A message stating "A drive system fault appears in the instrument cluster."

Fault Codes / DTCs

When these symptoms occur, a diagnostic scan of the vehicle's engine control unit (address word 0001) may reveal the following event memory entries:

• P060C00: "Internal Control Module Main Processor Performance with DFCC 44160"
• U041600: "Invalid Data Received from Vehicle Dynamics Control Module with DFCC 34193"

These codes indicate a software anomaly affecting the engine control unit's performance and communication with other vehicle systems.

Diagnosis and Technical Background

The root cause of the Audi Q5 EPC light P060C00 and related symptoms is a software issue within the engine control module, specifically the -J623- unit. This software anomaly leads to the logging of the aforementioned DTCs and the activation of the EPC light and drive system fault message.

This TSB 2076356/3 supersedes the previous Pending Service Solution (PSS) TSB 2072710, which also addressed these engine control unit drive system faults P060C00 and U041600.

Repair Procedure Summary

The repair involves updating the software of the engine control module (-J623-, diagnostic address 0001). This procedure requires specific precautions for vehicles equipped with high-voltage components:

1. High-Voltage Cable Removal: Before entering the SVM (Software Version Management) code, the high-voltage cable must be removed. This is crucial to prevent potential damage to high-voltage components that could occur if the battery charges during the software update process.
2. SVM Operating Instruction: Technicians must follow all instructions detailed in TSB 2011732: 00 Software Version Management (SVM) operating instruction.
3. Software Update: The -J623- control unit is updated using the SVM action code 01A267. The new software part numbers and versions will replace the existing ones.

Important Warnings

It is critical to note the following warning regarding the repair process:

• "To prevent charging of the high-voltage battery during the software update, the high-voltage cable is to be removed BEFORE the entry of the SVM code on vehicles with high-voltage components. Charging the high-voltage battery during a software update can damage the high-voltage components."

Warranty Information

Warranty claims for this software update must adhere to the Audi Warranty Policies and Procedures Manual. The service number for this operation is 2470, with a damage code of 0039. Labor operations include Software Update (0151 0010 and 0151 0060), with time stated on the diagnostic protocol. If your vehicle is outside of its warranty period, this Technical Service Bulletin serves as informational guidance.

Owner Action

If your 2022-2024 Audi Q5 is displaying the EPC light or a drive system fault message, and you suspect it's related to the Audi Q5 EPC light P060C00 or U041600 DTCs, you should schedule an appointment with an authorized Audi service center. They will be able to diagnose the issue and perform the necessary software update as outlined in TSB 2076356/3.

NHTSA ID: 11017652