2023-2024 Audi Models "SAFE CP" Warning TSB

Audi has issued Technical Service Bulletin (TSB) 2073601/3 to address instances where the message "SAFE CP” appears in the instrument cluster of various 2023-2024 Audi models. This warning is often accompanied by specific Diagnostic Trouble Codes (DTCs), indicating a component protection issue stemming from a software fault.

This TSB, dated May 7, 2024, supersedes a previous bulletin, Group 57 number 24-39 (also known as PSS 2072587), and provides updated instructions and additional DTCs related to the condition. The core problem, leading to the "Audi SAFE CP U110100" message, is a software anomaly within the Comfort System Control Module.

Revision History

This Technical Service Bulletin has undergone several revisions:

• Revision 3 (May 7, 2024): The header was revised to include additional DTCs, and the condition description was updated with new DTCs and instructions.
• Revision 2 (April 25, 2024): The header was revised to include additional models, and the condition was updated to reflect these models in the update chart.
• Revision 1 (April 5, 2024): Initial publication of the bulletin.

Symptoms

Owners may observe the message "SAFE CP” appearing in the instrument cluster. This warning can be displayed alongside other various messages, indicating a potential issue with component protection.

Fault Codes (DTCs)

Technicians may find the following Diagnostic Trouble Codes (DTCs) stored in various control units:

• U110100: "Component protection active"
• C115E54: "Inertial sensors no basic setting"
• U111800: "Data set missing"

Diagnosis and Trigger Conditions

The primary DTC, U110100, indicating "Component protection active," can be stored in several control units, including:

• Brake Electronics Control Unit, -J104- (diagnostic address 0003)
• Electronic Central Electrical (BCM), -J519- (diagnostic address 0009)
• Airbag Control Unit, -J234- (diagnostic address 0015)
• Instrument Cluster, -J285- (diagnostic address 0017)
• Control Unit for Night Vision System, -J853- (diagnostic address 0084)

Subsequent DTCs that may be stored include C115E54 ("Inertial sensors no basic setting") in the Airbag Control Unit (-J234-) and U111800 ("Data set missing") in the Chassis Control with Air Suspension (-J775-).

Important Warnings

Owners and technicians should be aware of specific conditions under which this TSB does not apply:

• This TSB does not apply if the DTC "U110100: component protection active" is logged in the Gateway (diagnostic address 0019) and/or in the Comfort System Control Module (diagnostic address 0046).
• During the software update, the Key must be on the emergency reader coil to ensure a successful process.

Technical Background

The root cause of the "Audi SAFE CP U110100" message and associated DTCs is a software issue located within the Comfort System Control Module, identified by diagnostic address 0046. A new software version for this module, J393, has been developed to address and correct this condition.

Repair Procedure Summary

The repair for the "Audi SAFE CP U110100" issue involves updating the software of the Comfort System Control Module (J393). The process is as follows:

1. Refer to and follow all instructions detailed in TSB 2011732, which covers Software Version Management (SVM) operating instructions.
2. Update the J393 (diagnostic address 0046) using the SVM action code 46A034. The new software part number is 8W1.907.064.EA (version 0630 or higher), replacing older versions like 0627 or 0628.
3. After the update, if DTC "C115E54: Inertial sensors no basic setting" is stored in the Airbag Control Unit (-J234-), perform the basic settings for the inertial sensors. This will turn the fault passive.
4. It is not necessary to perform test plans for faults in the Chassis Control with Air Suspension (-J774-).
5. Once these steps are completed, all stored faults can be deleted.

Required Software and Parts

The primary requirement for this repair is a software update. The new software version for the Comfort System Control Module (J393) is 8W1.907.064.EA (version 0630 or higher). The SVM action code required for the update is 46A034.

Warranty Information

This repair is covered under warranty with the following conditions:

• Claim Type: 110, applicable for vehicles up to 48 months or 50,000 miles.
• CPO Vehicles: G10 for Certified Pre-Owned (CPO) vehicles, requiring owner verification.
• If the vehicle is outside of warranty coverage, this Technical Service Bulletin is for informational purposes only.
• Service Number: 5789
• Damage Code: 0039
• Labor Operations: Software update (includes checking for DTCs) is coded as 0151 0060 (maximum 100 Time Units), and the software update itself is 0151 0010 (20 Time Units). Diagnostic time and road tests are not separately compensated.
• All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

Owner Action

If your 2023-2024 Audi is displaying the "SAFE CP" warning message or you suspect issues related to component protection, it is recommended to contact an authorized Audi dealership. Provide them with the details of the warning message and any observed symptoms. The dealership will be able to diagnose the issue and apply the necessary software update as per TSB 2073601/3.

NHTSA ID: 11002132