2023-2024 Audi SAFE CP Cluster Warning U110100 TSB

Owners of certain 2023-2024 Audi vehicles may encounter an instrument cluster warning displaying "SAFE CP" along with other messages. This condition is linked to a diagnostic trouble code (DTC) U110100, indicating "Component protection active." Audi has released Technical Service Bulletin (TSB) 57 24 29 2072587/1 to address this issue with a temporary solution while a permanent fix is under development.

This TSB applies to various 2023-2024 Audi models, including the A4, A5, Q7, Q8, e-tron quattro, e-tron Sportback, Q8 e-tron, and e-tron GT vehicles. The presence of the "SAFE CP" message and DTC U110100 points to a specific software anomaly.

Symptoms

Vehicle owners will primarily notice the message "SAFE CP" appearing in the instrument cluster. This warning may be accompanied by other various messages, indicating that a component protection function has been activated.

Fault Codes / DTCs

The primary diagnostic trouble code associated with this issue is U110100. This code signifies "Component protection active" and can be stored in several control units within the vehicle's electrical system:

Code	Description	Affected Control Unit (Diagnostic Address)
U110100	Component protection active	Brake Electronics Control Unit, -J104- (0003)
U110100	Component protection active	Electronic Central Electrical (BCM), -J519- (0009)
U110100	Component protection active	Airbag Control Unit, -J234- (0015)
U110100	Component protection active	Instrument Cluster, -J285- (0017)
U110100	Component protection active	Control Unit for Night Vision System, -J853- (0084)

Important Warnings

Owners and technicians should note a critical exclusion regarding this TSB. This Pending Service Solution (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). For these specific cases, the bulletin's workaround is not applicable.

Audi explicitly states: "Do not replace any components for this condition since this will not resolve the customer's concern." This means replacing parts for the Audi SAFE CP U110100 issue is not the correct course of action, as it stems from a software problem.

Technical Background

The root cause of the "SAFE CP" warning and DTC U110100 is identified as a software issue within the Comfort System Control Module (diagnostic address 0046). Audi is actively working on a permanent production solution, which is expected to be available by the end of the first quarter of 2024, though this timeline is subject to change.

Repair Procedure Summary (Workaround)

To temporarily resolve the Audi SAFE CP U110100 issue, a workaround involves performing a terminal 30 reset on the Comfort System Control Module, -J393- (diagnostic address 0046). This procedure requires technicians to consult the latest wiring diagrams available through the repair manual. All three fuses related to the Comfort System Control Module must be removed for at least 10 minutes. After the fuses are reinstalled, a component protection test plan must be performed in the control units where the DTCs were initially stored.

Warranty Information

This service is covered under warranty for vehicles up to 48 months or 50,000 miles. For Audi Certified Pre-Owned (CPO) vehicles, coverage is under G10, requiring owner verification. If the vehicle is outside of any applicable warranty, this Technical Service Bulletin 57 24 29 2072587/1 serves as informational guidance only. The service number for this operation is 5789, with a damage code of 0039. The labor operation for resetting the Comfort System Control Module is 5789 4199, allocated 30 Technical Units (TU). Diagnostic time GFF (0151 0000) is also allocated 30 TU.

Source: NHTSA ID: 10249154