2023-2024 Audi 'SAFE CP' Message DTC U110100 TSB

Symptoms

Owners of certain 2023-2024 Audi models may observe the message "SAFE CP" displayed in the instrument cluster. This warning is typically accompanied by other various messages, indicating a potential issue with the vehicle's component protection system. If you see an Audi A5 SAFE CP message, it's important to have your vehicle diagnosed.

Fault Codes / DTCs

Technicians diagnosing this condition will likely find specific Diagnostic Trouble Codes (DTCs) stored in various control units:

• DTC U110100: Component protection active This code may be stored in one or more of the following control units:

  • 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)

• DTC 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 root cause of the "SAFE CP" message and associated DTCs, including the Audi A5 SAFE CP message, is a software issue within the Comfort System Control Module (J393), which has diagnostic address 0046. It is important to note that this specific Pending Service Solution (PSS) does not apply if the DTC "U110100: Component protection active" is found in the Gateway (diagnostic address 0019) or the Comfort System Control Module (diagnostic address 0046) itself.

Important Warnings

• This PSS 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).
• The vehicle key must be placed on the emergency reader coil during the software update procedure to ensure proper communication and prevent interruptions.

Repair Procedure Summary

Audi Technical Service Bulletin 2073601/1 outlines a software update as the solution for the "SAFE CP" message and DTC U110100. The repair involves updating the software in the Comfort System Control Module (J393, address 0046).

1. Consult SVM Operating Instructions: Technicians must first follow all instructions detailed in TSB 2011732, which covers Software Version Management (SVM) operating procedures.
2. Perform Software Update: The J393 control unit (address 0046) should be updated using the SVM action code 46A034. The update will replace older software versions (0627, 0628) of part number 8W1.907.064.EA with the new software version 0630 (or higher) of the same part number.

Warranty Information

This repair is covered under Audi's warranty program. For new vehicles, the claim type is 110, applicable for up to 48 months or 50,000 miles, whichever comes first. For Certified Pre-Owned (CPO) vehicles, the claim type is G10, requiring owner verification. If the vehicle is outside of any applicable warranty, this Technical Service Bulletin serves as informational guidance only. The Service Number for this procedure is 5789, and the Damage Code is 0039.

Labor Operations

The labor operation for this software update (including DTC checking) is 0151 0060. Diagnostic time (GFF) and road tests before and after the procedure are generally not allowed for separate billing (0 TU).

Source: NHTSA ID: 10253264