2021-2026 Audi Overhead Camera Malfunction TSB

Symptoms of an Audi Overhead Camera Malfunction

Owners of affected 2021-2026 Audi vehicles may notice that their individual overhead view cameras are inoperative, either sporadically or constantly. The camera image might also appear blurry or fogged up on the MMI screen. These visual issues indicate a potential Audi overhead camera malfunction.

Fault Codes (DTCs)

When diagnosing an Audi overhead camera malfunction, technicians may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the driver assist systems control unit -J1121- (address word 00A5).

Description	Fault Code	Video Cable Signal Error	Excess Temperature
Front overhead view camera	B127C04	C12AE02	B127C4B
Rear overhead view camera	B127D04	C12AF02	B127D4B
Left overhead view camera	B127E04	C12B002	B127E4B
Right overhead view camera	B127F04	C12B102	B127F4B

Additionally, the DTC B200FFA: Internal malfunction (symptom 282648 or 282649) may be present.

Important Warnings for Owners and Technicians

Audi TSB 90 24 13 2055188/9 highlights several critical points to ensure proper diagnosis and repair:

• "Replacing the driver assist systems control unit -J1121- (address word 00A5) because of DTC B200FFA - Internal malfunction (symptom 282648 or 282649) will NOT fix the customer complaint." This is a crucial warning, as replacing the control unit without clear findings will not resolve the issue and could lead to unnecessary costs.
• During diagnostic checks, the vehicle "must enter bus sleep after each step so that the overhead view camera system is reinitialized." Failing to do so can lead to incorrect diagnostic results.
• If it's not possible to pinpoint the specific harness causing the issue using the outlined procedures, technicians are advised to "postpone the repair. The issue is currently under analysis."

Diagnosis and Repair Procedure Summary

This TSB outlines three main scenarios for diagnosing and repairing an Audi overhead camera malfunction. The general approach involves careful isolation of the faulty component, often requiring the vehicle to enter a "bus sleep" cycle to reinitialize the camera system after each diagnostic step.

Scenario 1: Fogged, Cloudy, or Blurry Image

If an individual overhead view camera shows a fogged, cloudy, or blurry image, the technician should first consider replacing the affected overhead view camera along with its adapter wiring harness. Clear pictures of the complaint should be taken before and after the repair.

Scenario 2: Multiple Camera DTCs Stored

When several DTCs related to various cameras are stored, indicating a broader issue with the overhead view camera system, a more systematic approach is required.

1. Isolate the Faulty Camera Branch: Disconnect all cameras from the driver assist systems control unit -J1121-. Then, connect each camera individually, performing a bus sleep cycle after each connection.
2. Test Each Camera: After connecting a camera and reinitializing the system, activate the overhead view camera system. Operate the doors, hood, or trunk (depending on the camera's position) and check if the image displays correctly and uninterrupted on the MMI screen. This helps identify the affected camera harness(es).
3. Inspect Wiring and Connections: Once the faulty camera branch is identified, thoroughly inspect all coupling points and coax cables between the -J1121- control unit and the affected overhead cameras (-R243-, -R244-, -R245-, -R246-). Look for loose connectors, pushed-back pins, corrosion, or physical damage.
4. Component Swapping (If Cause Unclear): If no obvious cause is found, technicians should swap an individual overhead view camera with another one (e.g., -R244- with -R245-) to rule out a faulty camera. Similarly, swap video cable connections on the -J1121- unit to check for faulty video cables.

Scenario 3: Single Camera DTC Stored

If only a single DTC is logged for one individual overhead view camera, the process begins by performing a bus sleep cycle to reinitialize the -J1121- control module.

1. Initial Check: Activate the overhead view camera system and check the MMI screen for correct image display while operating relevant vehicle parts (doors/hood/trunk).
2. Persistent DTC: If the DTC persists and matches the initial one, proceed to check all coupling points and coax cables between the -J1121- control unit and the affected overhead camera (-R243-, -R244-, -R245-, -R246-) for any issues.
3. Component Swapping (If Cause Unclear): As in Scenario 2, if no cause is located, swap the individual overhead view camera and its video cable connection with another to isolate the fault.
4. Wiring Overlay: If the camera itself is not the problem, double-check the wiring by swapping the coax wire on the -J1121- side with a camera at a different position. If the fault follows the swapped coax wire, overlaying a new coax wire to the camera may be necessary.

This comprehensive diagnostic approach ensures that the root cause of the Audi overhead camera malfunction is accurately identified and addressed.

Warranty Information

This Technical Service Bulletin 90 24 13 2055188/9 specifies that warranty claims for this repair are covered for up to 48 months or 50,000 miles, whichever comes first. For Certified Pre-Owned (CPO) vehicles, the claim type is G10, and owner verification is required. If the vehicle is outside of these warranty parameters, the TSB serves as informational guidance only. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

NHTSA ID: 11005924