2022-2024 Audi e-tron GT ABS Warning Light TSB

Symptoms

Owners of 2022-2024 Audi e-tron GT and RS e-tron GT vehicles typically do not experience any noticeable issues related to these codes. The e-tron GT ABS warning light may flash in the instrument cluster, but only when a diagnostic tester is connected to the vehicle. These DTCs are usually discovered during pre-delivery inspection (PDI) or other diagnostic work, rather than in response to a customer complaint.

Fault Codes / DTCs

This Technical Service Bulletin (TSB) 45 22 28 2064758/3 specifically addresses the following Diagnostic Trouble Codes (DTCs) that may be stored in the ABS control module, J104 (address word 0003):

• DTC B2F0100: Development code 1, with symptom codes 358656 (static) and 339457 (intermittent).
• DTC U012700: Tire Pressure Monitoring Control Module - no Communication, with symptom code 358656 (static).

In addition to the above, the following DTCs may also appear:

• DTC U112200: Data bus implausible message, with symptom code 303616 (static).
• DTC U112300: Data bus error value received, with symptom code 169984 (intermittent) and 303360 (static).

Diagnosis / Trigger Conditions

These DTCs are logged in the ABS control module due to specific control module communication patterns that are part of the vehicle's design. It is important to note that these codes do not indicate a malfunction of the ABS/ESC system itself, nor do they impact its functionality. The e-tron GT ABS warning light may only become visible under specific diagnostic conditions.

Important Warnings

Owners should be aware that static DTCs, such as B2F0100, U012700, and U112200, cannot be erased from the system. Intermittent DTCs can be cleared, but they will reappear if the conditions that triggered them occur again. This behavior is expected and does not signify a persistent problem with the ABS/ESC system.

Repair Procedure Summary

The repair procedure for these DTCs is straightforward. Technicians are instructed to erase all intermittent DTCs stored in the ABS control module, J104. After clearing the intermittent codes, the vehicle can be released. No further action or component replacement is required, as the codes are considered a design characteristic rather than a fault.

Warranty Information

This service is covered under warranty for vehicles up to 48 months or 50,000 miles. For Audi Certified Pre-Owned (CPO) vehicles, coverage falls under the G10 category, subject to owner verification. If the vehicle is outside of these warranty parameters, this Technical Service Bulletin serves as informational guidance. The service number for this procedure is 4530, with a damage code of 0040. Diagnostic time is allocated as GFF, 0150 0000, with a maximum of 50 diagnostic units (TU).

This bulletin, identified as 45 22 28 2064758/3, supersedes Technical Service Bulletin Group 45 number 22-25 (2064758/2) dated May 20, 2022. The latest revision, Revision 3, was issued on November 2, 2022, updating the header and condition description.

Owner Action

If you own a 2022-2024 Audi e-tron GT or RS e-tron GT and are concerned about an e-tron GT ABS warning light or potential diagnostic trouble codes, you may consult your authorized Audi dealer. They can perform a diagnostic scan and address any intermittent DTCs according to TSB 45 22 28 2064758/3.

NHTSA ID: 10226250