2023 Audi SOS Malfunction ConBox High TSB

Owners of certain 2023 Audi vehicles may encounter an Audi SOS malfunction message displayed on their instrument cluster. This issue, detailed in Technical Service Bulletin (TSB) 91 24 35 2074410/3, points to a software-related problem within the vehicle's ConBox high system, specifically affecting the Emergency Call Module and Communication Unit.

This TSB, identified as 91 24 35 2074410/3, supersedes an earlier bulletin, Group 91 number 24-27, dated July 17, 2024, and provides updated information for diagnosing and resolving the Audi SOS malfunction.

Symptoms of an SOS Malfunction

If your Audi is affected by this issue, you may observe the following symptoms:

• The instrument cluster displays the message: "SOS Emergency Call function: malfunction. Function unavailable. Please contact service".
• Limited Bluetooth functionality.
• Limited Wi-Fi functionality.
• Inability to use connected features.
• The eCall LED is not illuminated.

Diagnostic Trouble Codes (DTCs)

Technicians may find specific Diagnostic Trouble Codes (DTCs) logged in the vehicle's systems, indicating the nature of the Audi SOS malfunction. These codes help pinpoint the exact problem within the Emergency Call Module and Communication Unit (ConBox) -J949- or the Data Bus Onboard Diagnostic Interface - J533-.

Code	Description	Module
U13EB00	Emergency call module and communication unit Flight mode active (active/static)	Emergency Call Module and Communication Unit (ConBox) -J949-
U164200	Ethernet Emergency Call Module no communication (passive/sporadic)	Data Bus Onboard Diagnostic Interface - J533-
U142100	Control module for emergency call module and communication unit no communication (passive/sporadic)	Data Bus Onboard Diagnostic Interface - J533-

Technical Background

The root cause of the Audi SOS malfunction is identified as a software-related issue within the Emergency Call Module and Communication Unit (ConBox) -J949-. Audi has implemented a new software version in series production starting in Q3/2024 to prevent this issue in newer vehicles.

Important Warnings for High-Voltage Vehicles

For Audi vehicles equipped with high-voltage components, specific precautions must be taken during the software update procedure. These warnings are critical to prevent damage to the vehicle's high-voltage system:

• To prevent charging of the high-voltage battery during the software update, the high-voltage cable is to be removed BEFORE the entry of the SVM code on vehicles with high-voltage components.
• Charging the high-voltage battery during a software update can damage the high-voltage components.

Repair Procedure Summary

To resolve the Audi SOS malfunction, an authorized Audi technician will perform a software update on the Emergency Call Module and Communication Unit (ConBox) -J949-. The procedure involves using the ODIS-Tester diagnostic tool:

1. The technician will select "Only allow DoIP communication" within the ODIS-Tester under Admin >> General >> GFF Process. This setting is automatically reset upon exiting the diagnostic session.
2. The Emergency Call Module and Communication Unit (ConBox) -J949- (address word 0075) will be updated via a specific SVM code. The operating mode for this update is "Flashing".
3. The SVM code required for this update is 75A029.
4. The technician will follow all instructions provided by the ODIS tester during the update process.

After the software update is completed, the technician will verify that the eCall LED is green and that the Emergency Call Module and Communication Unit (ConBox) -J949- identifies with Software Version 0497.

Required Software and Tools

This repair requires the use of the ODIS-Tester diagnostic system and the specific SVM code 75A029 to perform the software update on the ConBox -J949- module.

Warranty Information

This Technical Service Bulletin (TSB) 91 24 35 2074410/3 outlines the warranty claim details for this repair. If the vehicle is outside of its warranty period, this TSB serves as informational guidance only.

• Service Number: 9145
• Damage Code: 0039
• Labor Operations:
  • 0151 0010: Software update (See SRT with associated operations)
  • 0151 0060: Labor according to the diagnostic log
• Claim Comment: As per TSB 2074410/3

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

Owner Action

If your 2023 Audi is displaying the Audi SOS malfunction message or exhibiting any of the associated symptoms, it is recommended to schedule an appointment with an authorized Audi service center. The software update described in TSB 91 24 35 2074410/3 is necessary to restore full functionality of your vehicle's emergency call system and connected features.

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Source: NHTSA ID: 11005938