2021-2023 Audi Check Engine Light DTC U014000 U110100

Symptoms

Owners of certain 2021-2023 Audi models may notice a "Yellow check engine lamp sporadically lights up in the instrument cluster" when starting the vehicle. This intermittent illumination of the check engine light is the primary symptom described in Audi Technical Service Bulletin PSS 97.

Fault Codes / DTCs

When this condition occurs, specific Diagnostic Trouble Codes (DTCs) are stored in the vehicle's control units. These codes indicate a communication issue or an active component protection state.

Diagnosis / Trigger Conditions

The underlying cause of the "Audi check engine light U014000" and U110100 DTCs is the Vehicle Electronics control unit, J519 (diagnostic address 0009), intermittently entering component protection mode. This state then causes the engine electronics control unit, J623, to register a 'no communication' fault, leading to the illumination of the check engine lamp.

Important Warnings

Audi has provided crucial guidance for this specific issue under TSB PSS 97 (2067133/1):

• Do not replace any components for this condition since this will not resolve the customer's concern.
• Replacing the control unit will not solve the problem. A software update is being prepared.

This means that technicians should not attempt to replace the J519 or any other related control units, as a hardware replacement will not fix the intermittent component protection issue. A software update is anticipated to be the definitive solution.

Repair Procedure Summary

As of the TSB's publication date (June 3, 2022), a permanent solution in the form of a software update is under investigation and expected to be available by the end of the first quarter of 2023. No immediate repair is necessary for the "Audi check engine light U014000" issue.

In the interim, dealers are instructed to:

1. Explain to the customer that a solution is expected soon and no repairs are needed at this time.
2. Create a Pending Service Solutions (PSS) record for the vehicle through the PSS application.
3. Perform the necessary component protection for the J519 control unit.
4. Address any other component protection-related symptoms using the corresponding test plan in Guided Fault Finding.
5. Clear all stored fault codes and ensure the vehicle's information is entered into the PSS database.

Warranty Information

For vehicles experiencing this condition, warranty claims can be submitted under specific guidelines:

• Claim Type: 110 (for vehicles up to 48 months or 50,000 miles) or G10 (for CPO Covered Vehicles, requiring owner verification).
• Service Number: 9710
• Damage Code: 0039
• Labor Operations: Not Applicable (NA) for direct repair, as no components are replaced.
• Diagnostic Time: GFF 0150 0000 (Maximum 100 Time Units).
• Road Test: No allowance (0 TU) for road tests before or after the service procedure, as no physical repair is performed.
• Claim Comment: As per TSB 2067133/1.

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review by Audi Warranty.

NHTSA ID: 10214780