Bulletin #: 2326

Advanced Technical Information

Part ID: 0335

0

Protection of Vehicle Diagnosis (PVD)
Vehicles Affected
Models

Model Year

Model Type

VIN Range

Vehicle-Specific Equipment

Cayenne (E3-I)

2023

9YA, 9YB

N/A

N/A

Cayenne (E3-II)

As of 2024

9YA, 9YB

N/A

N/A

Panamera (G2-II)

As of 2023

971

N/A

N/A

911 (992-I)

As of 2023

992

N/A

N/A

Taycan (J1-I)

As of 2023

Y1A, Y1B, Y1C

N/A

N/A

Revision History
Revision

Release Date

Changes

0

October 16, 2023

Original document

Service Information
New Diagnosis functions introduced as of Model Year 2023 include “Protection of Vehicle Diagnostics” (PVD).
In some places this may be displayed in German language as, “Schutz Fahrzeug Diagnose” (SFD). Porsche Service
Centers will find new PIWIS Tester functions, informational messages, and error messages pertaining to PVD when
working on the affected vehicles.
Affected vehicle control units (for example, the Gateway control unit or the DME control unit) may also store an active fault code B184C00, “Activation activated” as a normal function of PVD. These faults are for informational purposes and typically do not require diagnosis.

Figure 1

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Bulletin #: 2326

Advanced Technical Information

Part ID: 0335

Technical Background
To perform certain diagnostic functions such as drive links, or to perform certain actions such as coding or
programming, relevant user, system, and vehicle information must be exchanged between the vehicle and the
backend (server-side) of the PVD system.
The process generally takes place as follows (see Figure 2)
1.
Function activation request sent by tester to control unit
2.
Control unit reports back confirmation of request
3.
Request is sent to PVD backend system
4.
User permissions are checked then an access token is sent back
5.
Tester and ECU confirm the control unit is unlocked for 90 minutes

Figure 2

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Bulletin #: 2326

Advanced Technical Information

Part ID: 0335

Service Information
*Ensure the diagnostic tester has an active internet and backend connection.
Upon start of diagnostic functions for the affected vehicles, the diagnostic tester will present a message related
to PVD and instruct the technician to confirm activation of PVD. This is typically done by opening the front lid of
the vehicle (front trunk or front engine compartment) to confirm the technician is at the vehicle and takes responsibility for further actions on the vehicle.
To activate control units and allow PVD-secured diagnostic functions:
1.
Open the Additional Menu [F7]
2.
Select Protection of vehicle diagnostics
3.
Activate control units
4.
Select which control unit(s) need activation of protected functions
5.
The technician login is verified. It may be necessary to log in to PPN again at this time
6.
After selection is made and pressing “Next”, a ‘Protection of vehicle diagnostics’ window will open
7.
Click on each control unit one by one
8.
Requested control units are now activated to allow protected functions
To lock the control units and deactivate PVD-secured diagnostic functions:
1.
Open the Additional Menu [F7]
2.
Select Protection of vehicle diagnostics
3.
Review informational message on the tester
4.
Select “Locking all control units” and follow tester prompts

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Bulletin #: 2326

Advanced Technical Information

Part ID: 0335

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Example: Control unit activation on 2024 Cayenne
To Activate control units:
1.

Go to Protection of vehicle diagnostics

2.

Click ‘Activate control units’

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Bulletin #: 2326

Advanced Technical Information

Part ID: 0335

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3.
Click ‘Activate control unit selection’ or ‘Activate all control units’
4.
If ‘Activate control unit selection’ is chosen, select which control unit(s) that needs to be activated and click
‘Next’
5.
The technician login is verified. It may be necessary to log in to PPN again at this time
6.
After selection is made and pressing “Next”, a ‘Protection of vehicle diagnostics’ window should open

7.
8.

Click on each control unit one by one
Requested control units are now activated

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Bulletin #: 2326

Advanced Technical Information

Part ID: 0335

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To lock the control units:
1.

Go to Protection of vehicle diagnostics

2.

Information page appears

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Advanced Technical Information

Part ID: 0335

3.

Locking all control units

4.

After waiting, control units should be successfully locked

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Advanced Technical Information

Part ID: 0335

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Warranty
No specific repair or diagnostic work is described in this document.
As always, document repairs completely in PCSS as needed.

Search Items
SFD, PVD, Protection of Vehicle Diagnosis, B184C00

Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training courses. They are
written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special tools may be necessary in
order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the safe operation of your vehicle, and
may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and safely. Part numbers listed in these bulletins
are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a discrepancy, the work procedures in the PIWIS Tester
are the ones that must be followed.

©2023 Porsche Cars North America, Inc.

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