2023-2024 Audi SAFE CP U110100 Warning TSB

Symptoms

Owners of affected 2023-2024 Audi vehicles may observe the message "SAFE CP" displayed in the instrument cluster. This warning can appear alongside other various messages, indicating a potential issue with component protection or related vehicle systems.

Fault Codes / DTCs

When the "SAFE CP" message appears, technicians may find the following Diagnostic Trouble Codes (DTCs) stored in various control units:

• U110100: "Component protection active"
  • This DTC may be stored in the Brake Electronics Control Unit (-J104-, diagnostic address 0003).
  • It may also be found in the Electronic Central Electrical (BCM) (-J519-, diagnostic address 0009).
  • Other control units that might store U110100 include the Airbag Control Unit (-J234-, diagnostic address 0015), Instrument Cluster (-J285-, diagnostic address 0017), and the Control Unit for Night Vision System (-J853-, diagnostic address 0084).
• C115E54: "Inertial sensors no basic setting"
  • This DTC may be logged in the Airbag Control Unit (diagnostic address 0015) as a subsequent fault.

Diagnosis / Trigger Conditions

The primary cause for the "SAFE CP" message and associated DTC U110100 is identified as a software issue within the Comfort System Control Module (diagnostic address 0046). This condition affects the proper functioning of component protection, leading to the warning message.

Important Warnings

• Key Placement During Update: The key must be placed on the emergency reader coil during the software update procedure to ensure proper communication and completion.
• Applicability Note: This Technical Service Bulletin (TSB) does not apply if the DTC "U110100: component protection active" is logged specifically in the Gateway (diagnostic address 0019) and/or in the Comfort System Control Module (diagnostic address 0046).

Repair Procedure Summary

Audi Technical Service Bulletin 57 24 39 2073601/2 outlines a software update procedure to resolve the "SAFE CP" warning and related DTCs. This TSB supersedes a previous bulletin, 24-36 dated April 5, 2024, and the Pending Service Solution (PSS) TSB 2072587.

The repair involves updating the software of the Comfort System Control Module, J393 (address word 0046). Technicians must follow the instructions provided in TSB 2011732, which details the Software Version Management (SVM) operating procedures. The J393 module is then updated using the specified SVM action code.

Required Tools or Parts

• Software Version Management (SVM): The update process requires the use of SVM, following the instructions in TSB 2011732.
• SVM Action Code: 46A034 is the specific SVM action code used for updating the J393 module.
• Software Part Number: The new software version for the Comfort System Control Module (J393) is 8W1.907.064.EA, with version 0630 or higher, replacing older versions like 0627 or 0628.

Owner Action

If you are experiencing the "SAFE CP" warning message or believe your 2023-2024 Audi is affected by the Audi SAFE CP U110100 issue, you should schedule an appointment with an authorized Audi dealership. The software update is typically covered under warranty for up to 48 months or 50,000 miles, or for CPO (Certified Pre-Owned) vehicles under the G10 program. If your vehicle is outside of warranty, this bulletin serves as informational guidance.

NHTSA ID: 10253919