2021-2026 Audi Overhead View Camera System Fault TSB

Audi has issued Technical Service Bulletin (TSB) 2076264/5 to address concerns regarding the overhead view camera system in various 2021-2026 models. Owners may experience a steamed-up camera or a complete failure of the system. This TSB outlines diagnostic steps and repair procedures to resolve the issue.

Symptoms

Owners of affected vehicles may observe one or more of the following issues related to the overhead view camera system:

• One or more overhead view cameras appear steamed up.
• The entire overhead view camera system does not work, either intermittently or constantly.
• Individual overhead view cameras are non-functional, either intermittently or constantly.
• Multiple overhead view cameras are not working, either intermittently or constantly.

Fault Codes / DTCs

When an Audi e-tron overhead camera fault occurs, technicians may find one or more of the following Diagnostic Trouble Codes (DTCs) logged in the driver assist systems control unit -J1121- (diagnostic address 00A5):

Code	Description	Module
B127C04	Front overhead view camera - Defective	J1121
C12AE02	Front overhead view camera - Video cable signal malfunction	J1121
B127C4B	Front overhead view camera - Excessive temperature	J1121
B127D04	Rear overhead view camera - Defective	J1121
C12AF02	Rear overhead view camera - Video cable signal malfunction	J1121
B127D4B	Rear overhead view camera - Excessive temperature	J1121
B127E04	Left overhead view camera - Defective	J1121
C12B002	Left overhead view camera - Video cable signal malfunction	J1121
B127E4B	Left overhead view camera - Excessive temperature	J1121
B127F04	Right overhead view camera - Defective	J1121
C12B102	Right overhead view camera - Video cable signal malfunction	J1121
B127F4B	Right overhead view camera - Excessive temperature	J1121
B200FFA	Internal malfunction, symptom 282648/282649	J1121

Diagnosis / Trigger Conditions

Before proceeding with the TSB, it is crucial to ensure that Campaign 90TV recall has already been performed on the vehicle. Additionally, the software on the driver assist systems control unit J1121 must correspond to one of the following versions: 0511, 0385, or 0367.

The TSB notes that deviations in the diagnostic capabilities of the J1121 control unit, along with issues like a faulty camera, short circuit in video cables, or water ingress, can lead to partial or complete failure of the overhead view camera system and trigger the listed DTCs.

Repair Procedure Summary

This TSB outlines a multi-step repair process, emphasizing that replacing the driver assist systems control unit J1121 without clear findings will not resolve the issue. The vehicle must enter bus sleep mode during checks to reinitialize the overhead view camera system.

1. Check Repair History: Verify if previous repairs described in steps 2 and 3.1/3.2 have been performed.
2. Replace Exterior Mirror Mountings: If the issue persists, both exterior mirror mountings should be replaced according to the Workshop Manual.
3. Replace All Video Cables: This step is divided based on the vehicle model:
   • For A6, A7, and A8 models (Step 3.1): If the problem continues after replacing the exterior mirror mountings, replace the wiring harness for both the driver door and the front passenger door. This involves replacing wiring harness part numbers such as XXX.971.029.XX and XXX.971.030.XX (as shown in Figure 1 and Figure 4 of the TSB).
   • For Q7PU, Q8, e-tron, and e-tron GT models (Step 3.2): If the issue persists after replacing the exterior mirror mountings, replace all video cables between the ZFAS control unit and the left and right exterior mirrors (R244 and R245). This requires using specific adapter cables from ETKA diagram 971-805 (illustrated in Figure 2 of the TSB). The faulty cable should remain in the vehicle, with new cables routed along the interior wiring harness (Figure 3).

If the complaint persists even after completing all applicable steps in this TSB, technicians are instructed to submit a technical repair query to the Technical Assistance Center (TAC).

Required Tools or Parts

Specific parts and diagrams mentioned in the repair procedure include:

• Wiring harness for driver door: XXX.971.029.XX (diagram 972-033 / 972-330)
• Wiring harness for front passenger door: XXX.971.030.XX (diagram 972-035 / 972-350)
• Adapter cables from ETKA diagram 971-805 for vehicle interior wiring harness (for Q7PU, Q8, e-tron, e-tron GT models).

Owner Action

If you are experiencing an Audi e-tron overhead camera fault or any of the symptoms described, it is recommended to schedule an appointment with an authorized Audi service center. Provide them with details of the symptoms and any warning lights or messages observed. While the TSB provides detailed repair instructions for technicians, it is informational only if your vehicle is outside of its warranty period. The service center will be able to diagnose the specific cause and perform the necessary repairs.

NHTSA ID: 11028468