2021-2022 Audi P17F900 Transmission Basic Settings

Symptoms of the P17F900 Basic Settings Issue

Owners of 2021-2022 Audi A4, A5, A6, A7, and Q5 models equipped with the DL382 transmission may experience difficulty performing basic settings after a transmission repair. This issue manifests as the inability to complete the necessary basic setting procedure, which is crucial for proper transmission function following maintenance or component replacement. The underlying cause is an active or static fault detected by the vehicle's systems, specifically related to the Audi A6 P17F900 basic settings problem.

Fault Codes and Diagnostic Information

When basic settings cannot be performed, the Transmission Control Module (TCM), identified as J217 (address word 0002), will store a specific diagnostic trouble code (DTC). This code indicates the nature of the fault preventing the procedure.

Code	Description	Module
P17F900	Parking lock Mechanical Malfunction	TCM

This DTC, P17F900, points to a mechanical malfunction within the parking lock system, which can hinder the successful completion of transmission basic settings.

Technical Background

According to Audi's Technical Service Bulletin 2064848/1, the root cause of this issue is often a temporary lack of hydraulic pressure within the transmission system. This can occur after a transmission repair, leading to the P17F900 fault and preventing the necessary basic settings from being completed. The system requires adequate hydraulic pressure to operate correctly and allow for the calibration process.

Repair Procedure Summary

Audi TSB 2064848/1 provides a specific sequence of steps to address the P17F900 basic settings problem. This procedure aims to restore hydraulic pressure and allow the fault to transition from an active/static state to a passive one, enabling its deletion and subsequent basic settings.

The repair involves cycling the transmission selector positions in a precise order:

1. Ensure terminal 15 (ignition) is on and the engine is running.
2. Select transmission position "N" (Neutral).
3. Maintain the "N" position for at least 60 seconds. This duration allows the transmission accumulator to fill with hydraulic fluid.
4. Briefly shift the selector to "P" (Park).
5. Immediately shift back to "N" and wait for an additional 10 seconds.
6. Finally, turn off the vehicle while the transmission is in "P", ensuring terminal 15 remains on.

After completing this sequence, the DTC P17F900 should change from an active fault to a passive one. Once passive, the fault can be cleared from the TCM's memory, and the basic setting procedure can then be performed successfully. This resolves the Audi A6 P17F900 basic settings issue.

Warranty Information

This service is covered under Audi's warranty programs, provided the vehicle meets specific criteria. For new vehicles, coverage is typically available for up to 48 months or 50,000 miles, whichever comes first, under claim type 110. Certified Pre-Owned (CPO) vehicles may also be covered under claim type G10, though owner verification is required.

If your vehicle is outside of these warranty periods, this Technical Service Bulletin 2064848/1 serves as informational guidance. Owners should consult their Audi dealer for specific warranty applicability and potential costs. The service number for this procedure is 3481, with a damage code of 0039. Labor operations for checking the control unit and selecting transmission positions are designated as 3481 0199, estimated at 10 labor units. Diagnostic time, identified as GFF 0150 0000, may take up to a maximum of 30 labor units.

What Owners Should Know

Audi is NOT notifying consumers directly about this specific Technical Service Bulletin. Owners who experience the Audi A6 P17F900 basic settings issue after a transmission repair should proactively contact their authorized Audi dealership. The repair procedure outlined in TSB 2064848/1 is intended to be performed by qualified technicians. Do not attempt to perform this procedure yourself unless you are a trained professional with access to the necessary diagnostic tools and information.

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Source: NHTSA ID: 10202584, TSB 2064848/1