2021-2023 Audi Q7/SQ7 Driver Assist Systems Unavailable TSB

Owners of 2021-2023 Audi Q7 and SQ7 models may experience issues with various driver assist systems becoming unavailable. This condition is often accompanied by specific warning messages displayed on the instrument cluster. Audi Technical Service Bulletin 2076397/1 has been released to provide diagnostic and repair information for this concern, helping to resolve the Audi Q7 driver assist systems unavailable problem.

Symptoms

When the driver assist systems are unavailable, owners may notice one or more of the following messages displayed on their instrument cluster:

• "Audi adaptive light: system fault"
• "Audi pre sense: system fault"
• "Adaptive cruise assist: restricted"
• "Adaptive cruise assist: predictive control currently restricted"

These messages indicate a malfunction within the vehicle's advanced driver assistance systems, impacting features designed for safety and convenience.

Fault Codes / DTCs

Workshop findings indicate that the unavailability of driver assist systems is typically linked to specific Diagnostic Trouble Codes (DTCs) stored in the vehicle's system. These DTCs can appear alone or in combination within the driver assist systems control module (J1121, address word 00A5).

Code	Description	Symptom Number
C12B3FA	Driver Assistance Systems Front Camera – communication error (sporadic)	221189
C12D5FA	Driver Assistance Systems Control Module, image processing processor does not respond	221281

Diagnosis / Trigger Conditions

The presence of DTC C12B3FA indicates a communication error with the Driver Assistance Systems Front Camera (R242). DTC C12D5FA points to an issue where the image processing processor within the Driver Assistance Systems Control Module is not responding. These codes, either individually or together, signal a fundamental problem preventing the driver assist systems from functioning correctly.

Repair Procedure Summary

To address the Audi Q7 driver assist systems unavailable condition, Audi Technical Service Bulletin 2076397/1 outlines a specific repair. The procedure involves installing a new data wire, part number 4M0 971 327. This data wire connects the front camera for driver assist systems (R242) to the driver assist systems control unit (J1121). This repair aims to restore proper communication and functionality between these critical components.

Required Parts

Only the parts listed in this TSB should be used for the repair. It is crucial to use these specific components, as they may supersede other part numbers.

Part Number	Part Description	Quantity
4M0 971 327	Data wire	01
See ETKA	Fasteners, Bolts, Nuts, and Screws as needed per the Repair Manual	See ETKA/ELSA

Important Warnings

Audi explicitly states, "Only use parts listed in this TSB, this includes superseding part numbers!" This is a critical instruction to ensure the correct and effective repair of your vehicle's driver assist systems. Additionally, if your vehicle is outside of any applicable warranty, this Technical Service Bulletin serves as informational guidance only.

Warranty Information

This repair, as detailed in TSB 2076397/1, is typically covered under warranty for eligible vehicles. The specific warranty claim details are:

• Service Number: 9093
• Damage Code: 0040
• Labor Operations: Repair driver assist systems control unit (install repair wire) (9093 4199) and GFF (0150 0060).

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

Owner Action

If you are experiencing any of the described symptoms or warning messages on your 2021-2023 Audi Q7 or SQ7, it is recommended to schedule an appointment with an authorized Audi dealership. The dealership technicians can diagnose the issue, confirm the presence of DTCs C12B3FA or C12D5FA, and perform the necessary repair as outlined in Technical Service Bulletin 2076397/1. This repair will help restore the full functionality of your driver assist systems.

Source: NHTSA manufacturer communication 11012512.