2021-2022 Audi e-tron Warning Messages TSB

Owners of 2021-2022 Audi e-tron vehicles may experience various warning messages in their instrument cluster, signaling potential issues with the vehicle's electric drive or ABS systems. These Audi e-tron warning messages can include a yellow warning lamp with the text "Drive fault" while driving, or numerous warnings such as an "ESC message" appearing after the vehicle starts. This Technical Service Bulletin (TSB) outlines a software update designed to resolve these concerns.

Symptoms

Owners typically report one of the following scenarios:

• A yellow warning lamp illuminates in the instrument cluster, accompanied by the message "Drive fault" while the vehicle is in motion.
• Upon starting the vehicle, multiple warning messages, including an "ESC message", appear in the instrument cluster.

Fault Codes / DTCs

Technicians diagnosing these Audi e-tron warning messages may find specific Diagnostic Trouble Codes (DTCs) stored in the vehicle's control modules:

Code	Description	Module	Symptom Codes
P060C00	Internal Control Module Main Processor Performance	Electrical Drive Control Module (J841)	53312, 53313
C051F00	Multi-axis Acceleration Sensor Module "A" Correlation	ABS Control Module (J104)

Technical Background

Audi determined that a software update was necessary to address the underlying cause of these warning messages and DTCs. The updated software has since been implemented into production vehicles.

Repair Procedure Summary

To resolve the Audi e-tron warning messages and associated DTCs, authorized Audi service technicians will perform the following steps:

1. Refer to TSB 2011732 for detailed Software Version Management (SVM) operating instructions.
2. Update the software for the ABS control module (J104, address word 0003) and the suspension control module (J775, address word 0074) using SVM action code 74A006.
3. After the software update, perform basic settings for the electromechanical parking brake and the tire pressure monitoring system.

Required Software / Part Numbers

This TSB specifies the following software and part number updates:

Control Module	Old Software Part Number	Old Software Version	New Software Part Number (or higher)	New Software Version (or higher)
ABS	4KE909059AD	0231	4KE909059AF	0242
Suspension	4KE907777AM	<2320	4KE907777AH	2320

Important Notes for Technicians and Owners

If, after the software update, the DTCs persist in the control modules, technicians should follow these additional steps:

1. Lock the vehicle.
2. Wait until the vehicle enters sleep bus mode.
3. Read the ABS memory log and delete any remaining DTCs from the ABS control module (J104).
4. Reevaluate the vehicle's condition.

Warranty Information

This repair is covered under warranty for vehicles up to 48 months or 50,000 miles. For Certified Pre-Owned (CPO) vehicles, coverage is under G10. If the vehicle is outside of warranty, this TSB serves as informational guidance. The service number for this procedure is 4316, with a damage code of 0039. Labor operations include software update (0151 0000) and road tests (0121 0002, 0121 0004).

This bulletin, identified as 45 21 20 2061908/2, supersedes Technical Service Bulletin Group 45 number 21-15 dated January 15, 2021.

NHTSA ID: 10200440