2022-2025 Audi A4, A5, Q5 Engine Control Unit Faults

Audi has released Pending Service Solution (PSS) TSB 2072710/5 to address specific engine control unit drive system faults in certain 2022-2025 A4, A5, and Q5 vehicles. This bulletin informs technicians about customer complaints and diagnostic trouble codes (DTCs) that may appear, while noting that a permanent solution is still being developed.

This PSS TSB 2072710/5 applies to MY22-25 Audi A4, A5, and Q5 models. Owners experiencing these issues should be aware that Audi is actively working on a resolution.

Symptoms

Owners of affected Audi vehicles may observe the following indicators related to these engine control unit issues:

• The "EPC Lamp lights up" on the dashboard.
• A message stating "Drive system: fault" appears in the instrument cluster.

Fault Codes / DTCs

When diagnosing these symptoms, technicians may find the following Diagnostic Trouble Codes (DTCs) stored in the Engine Control Unit (-J623-, address word 0001):

• P060C00: "Internal Control Module Main Processor with Symptom Code DFCC 44160"
• U041600: "Invalid Data Received From Vehicle Dynamics Control Module with Symptom Code DFCC 34193"

Technical Background

The root cause of these issues is identified as software problems within the Engine Control Unit. Audi is currently developing a production solution to address these underlying software concerns.

Important Warnings and What Owners Should Know

Audi provides specific guidance for these engine control unit faults:

• Do not replace any components for this condition, as doing so will not resolve the customer's concern.
• If your vehicle exhibits these conditions, be advised that while multiple lights may appear on the dash, they will not affect the performance of the vehicle.
• A permanent solution is expected in Q2 of 2025, though this timeline is subject to change.
• In many cases, the complaint may be resolved after simply performing an ignition cycle.

Manufacturer's Current Stance and Service Instructions

Since a permanent fix for the Audi A4 A5 Q5 engine control unit faults is still under development, Audi's current service instructions are informational. Technicians are advised to explain to customers that no repairs are necessary at this point.

Dealers are instructed to create a PSS record in the PSS application via the Pending Service Solutions link in AccessAudi. This helps Audi track the prevalence of the issue while the production solution is being finalized. For MY2022-2024 Q5 40 models, technicians should refer to TSB 2076356, which also addresses engine control unit drive system faults P060C00 and U041600.

Revision History

This PSS TSB 2072710/5 has undergone several revisions to keep technicians and customers informed:

• Revision 5: Updated header with revised models.
• Revision 4 (12/19/2024): Added model years and updated customer statement and service information.
• Revision 3 (04/05/2024): Revised customer statement and service explanation.

Warranty Information

This TSB is for informational purposes only and is not applicable to any Audi Warranty.

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NHTSA ID: 11017603