2019-2025 Audi Overhead View Camera Malfunction TSB

Owners of various 2019-2025 Audi models, including the Audi e-tron, may experience issues with their overhead view camera system. These problems can manifest as blurry or fogged-up camera images, or the cameras may become inoperative entirely. This Technical Service Bulletin (TSB) 2055188/13 provides detailed guidance for technicians to diagnose and resolve these concerns.

This bulletin, identified as 90 24 54 2055188/13, was most recently revised on December 16, 2024. It supersedes a previous bulletin, 90 number 24-36, dated October 14, 2024, to incorporate updated service information and verbiage.

Symptoms

Owners may notice one or more of the following issues related to their vehicle's overhead view camera system:

• "One of the overhead view cameras is steamed up."
• "The overhead view camera system does not work (intermittent/static issue)."
• "Individual overhead view cameras do not work (intermittent/static issue)."
• "Multiple overhead view cameras do not work (intermittent/static issue)."

These symptoms indicate a malfunction within the overhead view camera system, impacting the functionality of features like the 360-degree view. If you are experiencing issues with your Audi e-tron overhead camera, this TSB provides the necessary steps for diagnosis.

Fault Codes / DTCs

When diagnosing issues with the overhead view camera system, technicians may find various Diagnostic Trouble Codes (DTCs) stored in the control module for driver assist systems, -J1121- (address word 00A5). These codes help pinpoint the specific camera or component affected.

Description	Fault	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 following general DTC may be present in the -J1121- control unit:

• DTC B200FFA: Internal malfunction (symptom 282648 or 282649).

Important Warnings for Owners and Technicians

Audi has issued specific warnings to prevent unnecessary repairs and ensure proper diagnosis of the overhead view camera system:

• Do Not Replace -J1121- Prematurely: "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 unit should only be replaced if clear findings indicate it is the root cause after thorough diagnosis.
• Bus Sleep Cycle Required: "Please note that during the following checks, the vehicle must enter bus sleep after each step so that the overhead view camera system is reinitialized." This step is crucial for accurate diagnostic results.

Diagnosis and Repair Procedures

Diagnosis and repair depend on the specific symptoms and DTCs present. The TSB outlines three main scenarios:

Scenario 1: Individual Camera Fogged, Cloudy, or Blurry

If a single overhead view camera is fogged up or its image is cloudy or blurry, the technician should replace the affected camera (e.g., -R243-, -R244-, -R245-, or -R246-) along with its adapter wiring harness. Clear pictures of the complaint should be taken before and after the repair.

Scenario 2: Several Camera DTCs Stored

When multiple DTCs related to various cameras are stored in the -J1121- control unit, a systematic approach is required:

1. Isolate the Fault: Disconnect all cameras from the driver assist systems control unit -J1121-. Then, connect each camera individually, performing a bus sleep cycle after each connection to reinitialize the system.
2. Verify Image Display: For each connected camera, activate the overhead view camera system. Operate the doors, hood, or trunk (depending on the camera's position) and check that the image displays correctly and without interruption on the MMI screen. This helps identify the affected camera branch or harness.
3. Inspect Wiring: Once a camera branch is identified, thoroughly check all coupling points and coax cables between the -J1121- control unit and the affected overhead view camera (-R243-, -R244-, -R245-, -R246-). Look for loose connectors, loose or pushed-back pins, corrosion, or other damage.
4. Further Isolation (if no cause found):
   • Swap the individual overhead view camera with another one (e.g., -R244- with -R245-) to rule out a faulty camera.
   • Swap the video cable connection on the -J1121- control unit with another one (e.g., the video cable of -R244- with the video cable of -R245-) to rule out a faulty video cable. This requires removing the connector housing on the video cable.
   • If the harness issue cannot be located, refer to TSB 2076264.

Scenario 3: Single Camera DTC Stored

If only one DTC is logged for an individual overhead view camera (with no other DTCs present):

1. Reinitialize System: Perform a bus sleep cycle to reinitialize the -J1121- control module.
2. Verify Image Display: Activate the overhead view camera system and operate the doors, hood, or trunk (as appropriate for the camera's location). Check that the image displays correctly and uninterrupted on the MMI screen.
3. Inspect Wiring (if DTC persists): If the DTC persists and is the same as the initial one, check all coupling points and coax cables between the -J1121- control unit and the affected overhead view camera (-R243-, -R244-, -R245-, -R246-) for loose connectors, loose/pushed back pins, corrosion, or damage.
4. Further Isolation (if no cause found):
   • Swap the individual overhead view camera with another one (e.g., -R244- with -R245-) to rule out a faulty camera.
   • Swap the video cable connection on the -J1121- control unit with another one (e.g., the video cable of -R244- with the video cable of -R245-) to rule out a faulty video cable. This requires removing the connector housing.
   • If no camera problem is identified, double-check the wiring by removing the connector housing on the -J1121- side of the coax wire and swapping it with a camera at a different position. If the fault follows the swapped coax wire, overlay the coax wire to the camera.

Warranty Information

For vehicles under warranty, the repair procedures outlined in this TSB are covered. If the vehicle is outside of warranty, this bulletin serves as informational guidance only.

• Claim Type: Refer to Audi Warranty Policies and Procedures Manual.
• Service Number: 9083
• Damage Code: 0040
• Claim Comment: "As per TSB 2055188/12"

Labor Operations

Operation	Number	Notes