2022-2024 Audi Q5 / A4 / A5 Engine Faults P060C00 U041600

Symptoms

Owners of affected Audi vehicles may observe specific warnings and messages indicating a potential issue with the engine control unit. The most common indicators include the illumination of the "EPC light is on" on the instrument cluster. Additionally, drivers might see a general "A drive system fault appears in the instrument cluster" message, signaling a problem with the vehicle's powertrain.

Fault Codes / DTCs

When these symptoms occur, a diagnostic scan will typically reveal specific fault codes stored in the engine control unit's memory. These diagnostic trouble codes (DTCs) pinpoint the nature of the software issue:

• P060C00: This code indicates an "Internal Control Module Main Processor Performance with DFCC 44160" fault. It suggests an internal issue with the main processor within the engine control module.
• U041600: This code signifies "Invalid Data Received from Vehicle Dynamics Control Module with DFCC 34193". It points to a communication error where the engine control unit is receiving incorrect data from the vehicle dynamics control module.

These Audi Q5 engine faults P060C00 U041600 are primarily software-related, affecting the DMSA Engine found in the specified models.

Technical Background

Audi has identified that the root cause of these engine control unit drive system faults is a software issue within the engine control unit itself. This software anomaly can lead to the incorrect processing of data or communication errors between critical vehicle modules, triggering the observed symptoms and DTCs.

Important Warnings

Before performing any software update on vehicles equipped with high-voltage components, it is crucial to follow a specific safety protocol. Technicians must remove the high-voltage cable BEFORE entering the SVM code for the software update. Failure to do so could result in the high-voltage battery charging during the update process, which can cause significant damage to the high-voltage components. This critical step ensures the safety of both the technician and the vehicle's electrical system.

Repair Procedure Summary

The resolution for these Audi Q5 engine faults P060C00 U041600 involves updating the software of the Engine control module, specifically the -J623- unit, which is identified by address word 0001. This Technical Service Bulletin (TSB) 2076356/4 supersedes the previous Pending Service Solution (PSS) TSB 2072710, which also addressed these specific engine control unit drive system faults.

The repair process begins by following the comprehensive instructions outlined in TSB 2011732, which details the proper operating procedures for Software Version Management (SVM). After ensuring the high-voltage cable is safely disconnected on relevant vehicles, the engine control unit's software is updated using the SVM action code 01A267. This update installs new software versions, such as 0003 or 0002, depending on the specific model year and existing software part number (e.g., 80A.907.115.B, 80A.907.115.C, 80A.907.115.E, or 8W0.907.115.AM).

Warranty Information

This service is typically covered under warranty. However, if a vehicle is outside of its applicable warranty period, this Technical Service Bulletin is considered informational only, and any repair costs may be the owner's responsibility. Dealers will process warranty claims using Service Number 2470 and Damage Code 0039. The labor operations for the software update are coded as 0151 0010 (referencing the Service Repair Time, SRT, for associated operations) and 0151 0060 (time stated on the diagnostic protocol). All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual, with claims subject to review by Audi Warranty.

Owner Action

If you own a 2022-2024 Audi Q5, 2023 Audi A4, or 2023 Audi A5 and experience the EPC light illuminating or a drive system fault message, it is recommended to contact your authorized Audi dealership. They can diagnose the issue, confirm the presence of DTCs P060C00 or U041600, and perform the necessary software update for the engine control module as per TSB 2076356/4.

NHTSA ID: 11027327