2022-2024 Audi e-tron GT 12V Battery Discharged P1D6C00 TSB

Owners of 2022-2024 Audi e-tron GT and RS e-tron GT models may encounter issues related to a discharged 12V battery, indicated by an illuminated electrical system fault lamp or a complete no-start condition. Audi has issued Technical Service Bulletin (TSB) 2075846/1, dated October 31, 2024, to provide guidance for diagnosing and addressing these concerns, particularly when the diagnostic trouble code (DTC) P1D6C00 is present. This TSB emphasizes a specific diagnostic approach to ensure proper repair.

Symptoms

If your Audi e-tron GT is affected by this condition, you might observe the following symptoms:

• The "Electrical system fault lamp lights up" on your dashboard.
• The "Vehicle does not start."

These symptoms suggest a potential problem with the 12V battery system, which is further corroborated by specific diagnostic trouble codes.

Fault Codes / DTCs

When diagnosing the issue, technicians will typically find a specific DTC logged in the Data Bus On Board Diagnostic Interface -J533- (address word 0019). The relevant fault code is:

Code	Description	Symptom Code	Condition
P1D6C00	12V battery faulty	8519692	Active/static OR Passive/sporadic

This DTC, P1D6C00, directly points to a fault within the 12V battery system, indicating it is either actively failing, has failed, or is intermittently experiencing issues.

Diagnosis and Trigger Conditions

The primary diagnostic step for the Audi e-tron GT P1D6C00 fault is to run the associated test log using Audi's Guided Fault Finding system. This process is crucial for accurately identifying the root cause of the 12V battery discharge or fault. The TSB specifies that the 12V battery should be checked specifically due to the entry of DTC P1D6C00.

Important Warnings

Audi explicitly states a critical warning regarding the repair process for the Audi e-tron GT P1D6C00 issue:

• "Replacing the battery without an instruction to do so from Guided Fault Finding is not permitted."

This means that technicians must strictly adhere to the Guided Fault Finding procedure. Prematurely replacing the 12V battery without following the diagnostic steps may not resolve the underlying issue and could lead to unnecessary repairs or warranty claim rejections.

Repair Procedure Summary

The repair procedure for the Audi e-tron GT P1D6C00 issue centers around a thorough diagnostic process rather than an immediate component replacement. Technicians are instructed to:

1. Reproduce the customer complaint: Confirm the symptoms described by the owner.
2. Run Guided Fault Finding: Utilize the diagnostic system to execute the test log specifically for DTC P1D6C00.
3. Adhere to Guided Fault Finding instructions: Follow all steps and recommendations provided by the diagnostic system. This ensures that the actual cause of the 12V battery fault is identified and addressed.

The TSB also notes that there have been no production changes related to this issue, indicating that the solution lies in proper diagnosis and service procedures for existing vehicles.

Warranty Information

This Technical Service Bulletin 2075846/1 provides specific details for warranty claims related to the Audi e-tron GT P1D6C00 issue. The Service Number is 2706, and the Damage Code is 0040. Labor operations are categorized under "GFF / Guided Functions," with specific codes 0150 0010 (referencing SRT with associated operations) and 0150 0060 (time stated on the diagnostic protocol). Claims must be submitted in accordance with the Audi Warranty Policies and Procedures Manual and are subject to review.

If the vehicle is outside of its warranty period, this TSB serves as informational guidance for diagnosis and repair.

Owner Action

If your 2022-2024 Audi e-tron GT or RS e-tron GT displays an electrical system fault lamp, experiences a no-start condition, or you suspect a 12V battery issue, it is recommended to schedule an appointment with an authorized Audi service center. Inform them of the symptoms you are experiencing and mention Technical Service Bulletin 2075846/1 and the DTC P1D6C00. The technicians will use the Guided Fault Finding system to accurately diagnose and resolve the problem.

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Source: NHTSA ID: 11009932