2023-2024 Audi e-tron / Q7 / Q8 SAFE CP Warning TSB

Owners of certain 2023-2024 Audi e-tron, Q7, and Q8 models may encounter a "SAFE CP" message in their instrument cluster, alongside other various warnings. This issue is detailed in Audi Technical Service Bulletin (TSB) 2072587/3, also identified as 57 24 35, which supersedes previous bulletin 24-32 dated February 23, 2024. The TSB outlines diagnostic trouble codes (DTCs) and a temporary workaround while a permanent software solution is under development.

Symptoms

The primary symptom reported by owners is the appearance of the message “SAFE CP” in the instrument cluster. This warning may be displayed concurrently with other vehicle messages, indicating a potential issue with component protection or sensor calibration.

Fault Codes / DTCs

Workshop findings indicate that the "Audi SAFE CP warning" is typically associated with specific diagnostic trouble codes stored in various control units:

• U110100: Component protection active This DTC may be stored in any 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)

• C115E54: Inertial sensors no basic setting This DTC may be logged in the Airbag Control Unit (diagnostic address 0015).

Important Warnings for Owners

Audi has provided crucial guidance regarding this issue:

• Do not replace components: "Do not replace any components for this condition since this will not resolve the customer's concern." Replacing parts will not fix the underlying problem and should be avoided.
• Applicability: 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).

Technical Background

The root cause of the "Audi SAFE CP warning" and associated DTCs is identified as a software issue within the Comfort System Control Module (diagnostic address 0046). Audi states that a permanent solution is currently under development and is expected to be available by the end of the second quarter of 2024, though this timeline is subject to change.

Repair Procedure Summary (Workaround)

While a permanent fix is being developed, a temporary workaround can be performed to address the "Audi SAFE CP warning". This involves a terminal 30 reset on the Comfort System Control Module (-J393-, diagnostic address 0046). Technicians will need to consult the latest wiring diagrams to locate and remove all three fuses associated with this module for at least 10 minutes. After the fuses are reinstalled, a component protection test plan must be performed in the affected control units where the DTCs were stored.

Warranty Information

This service is covered under warranty for vehicles up to 48 months or 50,000 miles. For Certified Pre-Owned (CPO) vehicles, it falls under claim type G10. The service number is 5789, with a damage code of 0039. Labor operations for resetting the Comfort System Control Module are identified as 5789 4199, with an allowance of 10 time units (TU). Diagnostic time is GFF 0150 0010 or 0150 0060, depending on the diagnostic protocol.

Superseded and Related Bulletins

This current bulletin, 2072587/3 (57 24 35), is Revision 3, dated April 5, 2024. It supersedes Technical Service Bulletin Group 57 number 24-32, which was dated February 23, 2024. The revision history includes an update to the header and the addition of DTC C115E54. For MY23-24 A4/A5 vehicles experiencing similar issues, refer to TSB 2073601, which also addresses the "57 Safe CP in Cluster w/ DTC U110100; C115E54" condition.

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NHTSA ID: 10253263