2023-2024 Audi Wireless Smartphone Interface Inoperable TSB

Symptoms of Inoperable Wireless Smartphone Interface

Owners of certain 2023-2024 Audi vehicles may experience issues with their wireless Audi Smartphone Interface (ASI). The primary symptom is that the system "cannot be paired to the phone wirelessly." This means that Apple CarPlay (ACP) and AndroidAuto (AA) will not connect without a physical cable.

Another clear indicator of this problem is that "The phone tiles under the ASI menu are grayed out" on the vehicle's infotainment display. This visual cue confirms that the wireless functionality is unavailable. While wired ASI connections continue to work as expected, the convenience of wireless connectivity is lost, leading to the "Audi wireless smartphone interface inop" condition.

Technical Background

The wireless Audi Smartphone Interface relies on the vehicle's 5GHz Wi-Fi network to communicate with and stream content from a smartphone to the MMI (Multi Media Interface) system. The underlying cause of the "Audi wireless smartphone interface inop" issue is a configuration problem within the vehicle's systems. This defect prevents the 5GHz Wi-Fi network from being broadcast by the vehicle, thereby disabling wireless ASI functionality.

This configuration issue specifically affects the Emergency Call Module and Communication Unit, identified as ConBox -J949-. It's important to note that when this problem occurs, no relevant Diagnostic Trouble Codes (DTCs) are stored in the vehicle's system, making diagnosis solely reliant on observed symptoms.

Important Warning: Do Not Replace Parts

Audi has issued a critical notice regarding this issue: "Parts replacement does not solve this issue. Claims for replaced parts will be subject to review." This means that technicians should not attempt to replace any hardware components, such as the ConBox or MMI unit, to resolve the "Audi wireless smartphone interface inop" condition. The problem is software-related and requires a specific diagnostic and configuration update.

Repair Procedure Summary

To resolve the "Audi wireless smartphone interface inop" condition, technicians must follow a specific three-step procedure outlined in Technical Service Bulletin 91 24 00 2073333/4:

1. Execute Diagnostic Test Plan: The first step involves running the "Check control module configuration" test plan. This is performed under Guided Functions for the Emergency Call Module and Communication Unit (ConBox) -J949-, which is located at address word 0075. This diagnostic process will identify and correct the underlying configuration error preventing the 5GHz Wi-Fi broadcast.
2. Delete Existing ASI Connections: After the test plan is completed, all previously stored Audi Smartphone Interface (ASI) connections must be deleted from the vehicle's MMI system. This ensures a clean slate for re-establishing wireless connectivity.
3. Perform Bus Sleep Cycle: Finally, the vehicle must undergo a bus sleep cycle. This allows the vehicle's electronic control units to power down and restart, applying the new configuration settings. Once the bus sleep cycle is complete, the correct wireless ASI functionality should be reestablished.

Warranty Information

This Technical Service Bulletin (TSB) outlines specific warranty claim types and codes for addressing the "Audi wireless smartphone interface inop" issue. For vehicles still under the new vehicle limited warranty, the claim type is 110, applicable for up to 48 months or 50,000 miles. For Audi Certified Pre-Owned (CPO) vehicles, the claim type is G10, requiring verification of owner eligibility.

The service number associated with this repair is 9145, and the damage code is AC39. Diagnostic time is allocated under GFF codes 0150 0010 (for SRT associated operations) and 0150 0060 (based on the diagnostic protocol, up to a maximum of 75 TU). Road tests before and after the service procedure are not allocated additional time. All warranty claims must comply with the Audi Warranty Policies and Procedures Manual, and are subject to review or audit by Audi Warranty. If a vehicle is outside of warranty, this TSB serves as informational guidance only.

NHTSA ID: 10254042 Source: Manufacturer Communication (Audi Technical Service Bulletin 91 24 00 2073333/4)