2021-2022 Audi Steering Malfunction DTC C10AC07 TSB

Audi has released Technical Service Bulletin (TSB) 48 22 15 2065872/1 to address a specific steering system issue affecting various 2021-2022 Audi models. This bulletin details a software update designed to correct a Steering mechanical malfunction that may be detected in the power steering control unit.

The TSB, dated January 28, 2022, provides instructions for technicians to update the J500 control unit, which is the diagnostic address 0044 for the power steering system. This update is crucial for resolving the underlying software issue that triggers the malfunction.

Symptoms

While Audi reports no customer complaints related to this issue, a Steering mechanical malfunction may be identified during vehicle inspections or diagnostic work. The primary indicator is the presence of a specific Diagnostic Trouble Code (DTC) stored in the power steering control unit J500.

Associated with this Audi steering mechanical malfunction C10AC07 are several symptom codes, which help technicians pinpoint the nature of the detected fault. These codes include 24320, 24321, 24322, 24323, 24324, and 24325.

Fault Codes / DTCs

The core of this issue is the detection of a specific Diagnostic Trouble Code (DTC) within the power steering control unit J500. This DTC indicates a Steering mechanical malfunction.

Code	Description	Module
C10AC07	Steering mechanical malfunction (active/static)	J500 (Power Steering Control Unit)

Additionally, the following symptom codes may be logged:

• 24320
• 24321
• 24322
• 24323
• 24324
• 24325

Diagnosis and Trigger Conditions

The root cause of the Audi steering mechanical malfunction C10AC07 is identified as a software issue within the power steering control unit J500. This means the hardware itself is not at fault, but rather the programming governing its operation.

Technicians will typically discover this DTC during routine inspections or when performing other diagnostic procedures. The presence of the C10AC07 code, along with any of the associated symptom codes, confirms the condition.

Repair Procedure Summary

The solution for the Audi steering mechanical malfunction C10AC07 involves a software update to the J500 power steering control unit. This procedure is performed using Audi's Software Version Management (SVM) system.

Technicians must follow the instructions outlined in TSB 2011732: 00 Software Version Management (SVM), operating instructions. The update process requires using the specific SVM action code provided in the bulletin. For example, for TT models, the SVM Code Input is 44A034. The software update will bring the control unit's software to a newer version, such as 5082 or 1082, depending on the specific vehicle model and existing software part number.

Warranty Information

This Technical Service Bulletin outlines specific warranty claim types for the software update:

• New Vehicle Limited Warranty: The repair is covered for vehicles up to 48 months or 50,000 miles, whichever comes first.
• Certified Pre-Owned (CPO) Warranty: The repair is covered under the G10 claim type for CPO vehicles, requiring verification of owner status.

If your vehicle falls outside of these warranty conditions, this Technical Service Bulletin is provided for informational purposes only, meaning the repair cost may not be covered. The service number for this procedure is 4835, with a damage code of 0040. Diagnostic time is set at GFF 0150 0000, with no allowance for pre- or post-service road tests.

Source: NHTSA ID 10206961