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

Symptoms Owners May Notice

Owners of 2022-2024 Audi A4, A4 allroad, S4, A5, A5 Cabriolet, A5 Sportback, S5, S5 Cabriolet, S5 Sportback, RS 5, RS 5 Sportback, Q5, Q5 e quattro, Q5 Sportback, SQ5, and SQ5 Sportback vehicles may observe specific warnings related to engine control unit software. The most common indicators of these Audi A5 engine ECU faults include the illumination of the EPC (Electronic Power Control) lamp on the dashboard.

Additionally, drivers might see the message "Drive system: fault" displayed in the instrument cluster. These warnings suggest an underlying issue with the engine's electronic management system, even if the vehicle's performance does not seem immediately affected.

Fault Codes (DTCs)

When diagnosing these symptoms, technicians will typically find specific Diagnostic Trouble Codes (DTCs) stored in the Engine Control Unit -J623- (address word 0001). These codes point to the software issues causing the Audi A5 engine ECU faults:

Code	Description	Symptom Code
P060C00	Internal Control Module Main Processor	DFCC 44160
U041600	Invalid Data Received From Vehicle Dynamics Control Module	DFCC 34193

Technical Background

Technical Service Bulletin PSS 01 (01 24 51 2072710/4) indicates that the root cause of these issues lies within software problems in the Engine Control Unit. This bulletin, dated December 19, 2024, supersedes Technical Service Bulletin Group 01 number 24-18, which was dated April 5, 2024.

Audi is actively working on a permanent production solution to address these software issues. Until that solution is fully developed and released, specific interim guidance is provided for affected vehicles.

Important Warnings for Owners

Audi has issued critical advice regarding these engine control unit faults. Owners should be aware that a solution is currently under development and is expected in Q2 2025, though this timeline is subject to change. Crucially, no repairs are necessary at this point for the reported conditions.

Furthermore, technicians and owners are explicitly advised: Do not replace any components for this condition since this will not resolve the customer's concern. Replacing parts will not fix the underlying software issue and could lead to unnecessary costs. In many cases, the complaint might even clear after a simple ignition cycle.

Interim Solution and Next Steps

For vehicles exhibiting the symptoms and DTCs described, Audi's current guidance under TSB PSS 01 is to inform the customer about the nature of the problem. While multiple warning lights may appear on the dash, these are not expected to affect the vehicle's performance. The primary action for dealerships is to create a PSS record in the Pending Service Solutions (PSS) application via AccessAudi. This helps Audi track the prevalence of the issue as they develop a permanent fix.

For specific 2024 Audi Q5 40 models, technicians are directed to refer to TSB 2076356, which also addresses engine control unit drive system faults P060C00 and U041600. This TSB is informational and does not apply to any Audi Warranty claims.

Owner Action

If you own a 2022-2024 Audi A4, A5, or Q5 model and experience the EPC light or "Drive system: fault" message, it's important to understand that a permanent fix is forthcoming. There is no immediate repair required, and replacing components will not resolve the issue. You should contact your authorized Audi dealership to have them diagnose the vehicle and record the presence of DTCs like P060C00 or U041600. They will explain that a software update is expected in Q2 2025.

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Source: NHTSA ID: 11012479