Service

Technical Information

135/22 ENU

WNJ8

9

WNJ8 - Update to Software Network VR19.0.1 (Workshop Campaign)

Important:

CRITICAL WARNING -This campaign includes steps where control unit(s) in the vehicle will be
programmed with the PIWIS Tester. The vehicle voltage must be maintained between 13.5 volts and 14.5
volts during this programming. Failure to maintain this voltage could result in damaged control unit(s).
Damage caused by inadequate voltage during programming is not a warrantable defect. The technician
must verify the actual vehicle voltage in the PIWIS Tester before starting the campaign and also document
the actual voltage on the repair order.

Model Year:

As of 2020 up to 2022

Model Series:

Taycan (Y1A/Y1B/Y1C)

Concerns:

Software update (software version VR19.0.1)

Information
WNJ8 must not be carried out without first carrying out AMB5/WMH0!
Information:

Software optimizations are available for various control units for the Taycan.
An overview of the new features that will be implemented with the software update can be found in the
enclosure under  Technical Information 'Overview of new features of the software update'.
Campaign Exception for Punch Time Requirements: ANA6, WNJ8, and WNK1
PCNA will make an exception to warranty policy regarding the necessary time keeping procedures when
performing the following campaigns: ANA6, WNJ8, and WNK1.
Though warranty policy guidelines state that no technician may be punched on more than one R.O. at
the same time, an exception will be made for the ANA6/WNJ8/WNK1 campaigns. Due to the extensive
programming time necessary a technician may perform multiple ANA6, WNJ8, and WNK1 campaigns
at one time, as long as there is a separate identifiable punch for each on the respective repair
order and the total number of campaigns being performed at one time does not exceed 3. The
exception will be made so that full "active participation time" does not need to be documented for these 3
campaigns only.
Reprogram the instrument cluster with the latest PIWIS Tester software version.
Minimum requirement: Version 41.200.010
Replace Owner's Manual in the on-board folder in the vehicle with an updated version.

Measures:

•
•
•

Checklist:

Due to the high number of incorrect programming steps carried out as part of the last software update
(VR12.1.1), a checklist was created to improve the overview of the work to be carried out. The checklist
must be completed and signed and attached to the PQIS quality line in the PCSS.
For checklist, see  Technical Information 'Checklist'

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Affected
Vehicles:

Technical Information

ENU 135/22

WNJ8

Only vehicles assigned to the campaign (see also PCSS Vehicle Information)

Required tools
Tools:

•
•
•
•

9900 - PIWIS Tester 3
Battery charger with a current rating of at least 90 A, e.g. VAS 5908 battery charger 90A
USB storage medium Type A+C 32 GB (for PCM update), Part No. V04014999WW000
USB storage medium, type C (for onboard Owner's Manual update), e.g. Part No.
V04014999WW000

Software update (software version VR19.0.1)
Work
Procedure:

Information
Before starting programming, the battery charger must always be:
•

Switch off and on once; the battery charger display must be off before starting it again because
the battery charger automatically switches to trickle charging after 5 hours (default setting in the
charger).

•

Set charge voltage to 14.8 volts.

•

Operate in charging mode.

1

The basic procedure for control unit programming is described in the Workshop Manual 
Workshop Manual 'Basic Instructions and Procedure for Control Unit Programming Using the PIWIS
Tester'.
Information
An active Internet connection with the PIWIS Tester must be ensured.
It is necessary to enrol the technician using the PIWIS Tester.
Vehicles with a PVTS contract must be activated for Service mode.
The PIWIS Tester must not be charged using the cigarette lighter!

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2

After the backup documentation process, the integration test is started automatically. The result
must first be ignored.

3

Create Vehicle Analysis Log (VAL) using the PIWIS Tester. Mark the vehicle analysis log you have just
created with the attribute "Pre-VAL" and after carrying out the campaign, return it using the PIWIS
Tester.

4

Update various control units to software version VR19.0.1 (Sequence 1).

AfterSales

Service

Technical Information

135/22 ENU

WNJ8

9

For specific information on control unit programming during this campaign, see table
below.
Information
As soon as interaction is required during programming, this is indicated by activation of the hazard
warning lights. The hazard warning lights must be deactivated manually after interaction as the hazard
warning lights cannot be deactivated automatically via the Tester.
Required PIWIS Tester software version:

41.200.010 (or higher)

Type of control unit programming:

Control unit programming using the ‘Campaign’
function in the additional menu on the PIWIS
Tester by entering a programming code.

Programming code:

J1K1T

Programming sequence:

Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.
Do not interrupt programming and coding.
A backup documentation process for the
re-programmed software versions starts as soon
as programming and coding is complete.

Programming time (up to):

•
•
•

MY 2020-2021 / 250 minutes
MY 2022 / 120 minutes
The first interaction by the technician is
required after about 30 minutes. The rest of
the programming sequence runs through to
the end without any necessary interaction.

Control units programmed in this campaign:

•

See  Technical Information 'overview of
control units VR19.0.1.'

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Technical Information

ENU 135/22

WNJ8

Procedure in the event of error messages
appearing during the programming sequence:

 Workshop Manual '9X00IN Basic instructions

Procedure in the event of a termination in the
control unit programming:

Continue the campaign sequence to the end,
then carry out the integration test again when
the test is complete and start programming
from the integration test.

and procedure for control unit programming using
the PIWIS Tester - section on “Troubleshooting"'.

Additional instructions for aborted programming
 Technical Information '9X00IN Additional information if programming is aborted'
5

When programming is complete, backup documentation including the integration test is made again.
The result must first be ignored because this sometimes displays control units that are displayed as
faulty despite programming.
To check this, the integration test can be started again on the start page by pressing •F3“ button.

6

The battery charger must be switched off and on completely once before Sequence 2 due to the
automatic switchover (trickle charging).

7

Select Guest account from the central display (PCM) and activate Privacy mode (available in some
countries).
Information
If Privacy mode is not active, programming may be aborted, resulting in a fault in the central
computer (PCM). Central computers that are replaced as part of the workshop campaign are
checked by Porsche AG; if private mode was not set in the central computer before starting
programming, the costs will be re-debited.
Information
Please inform the customer that the mobile phone connection will be lost following the PCM update.
Existing/paired mobile phones will require deleting & re-pairing for proper functionality
and new functions.

8
Re-program the central computer (PCM) (Sequence 2).
Sequence 2 may only be performed if Sequence 1 was performed.
For specific information on control unit programming during this campaign, see table
below.
Preparing USB stick with the required software (depending on country version)

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AfterSales

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Technical Information

135/22 ENU

WNJ8

9

Overview of the software to be used for the central computer (PCM): See  Technical Information
'9X00IN overview of PCM update'
Required PIWIS Tester software version:

41.200.010 (or higher)

Type of control unit programming:

Select the PCM central computer control unit
in the control unit selection screen (‘Overview’
menu) and select the ‘Maintenance/repairs’
menu.
Select the ‘Install software update’ function and
press •F12“ (‘Next’) to perform the software
update.

Programming code:

J1K2T

Programming sequence:

Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.
Do not interrupt programming and coding.
A backup documentation process for the
re-programmed software versions starts as soon
as programming and coding is complete.

Programming time (up to):

25 minutes

Control unit programmed in this campaign:

•

Procedure in the event of error messages
appearing during the programming sequence:

 Workshop Manual '9X00IN Basic instructions

Procedure in the event of a termination in the
control unit programming:

Repeat control unit programming by restarting
programming.

See  Technical Information '9X00IN
overview of control units VR19.0.1.'

and procedure for control unit programming using
the PIWIS Tester - section on “Troubleshooting"'.

Additional instructions for aborted programming

 Technical Information '9X00IN Additional information if programming is aborted'
9

Remove USB stick.

10 Start rework for various control units (Sequence 3).

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WNJ8

Technical Information

ENU 135/22

Sequence 3 may only be performed if sequences 1 and 2 have been performed.
Important Information!
The teaching process for component protection during the execution of Sequence 3 is
different between model years!
Model year

Control unit required for execution

2020-2021

Assistance systems (zFAS)

2022

Rear-end electronics (BCM2)

Required PIWIS Tester software version:

41.200.010 (or higher)

Type of control unit programming:

Control unit programming using the ‘Campaign’
function in the additional menu on the PIWIS
Tester by entering a programming code.

Programming code:

J1K3T

Programming sequence:

Read and follow the information and
instructions on the PIWIS Tester during the
guided programming sequence.

The instructions for selecting the
required control unit for teaching
component protection must always be
observed!

Do not interrupt programming and coding.
A backup documentation process for the
re-programmed software versions starts as
soon as programming and coding is complete.

Programming time (up to):

approx. 25 minutes

Control units programmed in this campaign:

•

Procedure in the event of error messages
appearing during the programming sequence:

 Workshop Manual '9X00IN Basic instructions

Procedure in the event of a termination in the
control unit programming:

Repeat control unit programming by restarting
programming.

See  Technical Information '9X00IN
overview of control units VR19.0.1.'

and procedure for control unit programming
using the PIWIS Tester - section on “Troubleshooting"'.

Additional instructions for aborted programming
 Technical Information '9X00IN Additional
information if programming is aborted'

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Technical Information

135/22 ENU

WNJ8

9

Information
Important Information!
•

Resetting the charging profiles is only necessary if a high-voltage charger (OBC 22kW) is
installed in the vehicle.

•

As soon as the control unit is selected, the left side of the PIWIS Tester shows whether the
charger is 11 kW or 22 kW.

•

If the charging profiles are not reset, there is a possibility that the Plug and Charge function will
not be available.

11
Reset charging profiles for high-voltage charger (OBC 22kW).
11.1

Select high-voltage charger (OBC 22 kW) control unit.

11.2

Select Drive links/checks.

11.3

Select Load profile, factory setting.

11.4

Start the routine with •F8“.

12 Perform direct rework in the vehicle.
12.1

Re-teach the handbrake by pressing the button in the vehicle.

12.2

Engage gear.

12.3

Retract extended rear spoiler.

12.4

Standardize side windows.
Information
The wheel electronics must be taught during the test drive and must not be carried out by
the technician.

13 Remove the PIWIS Tester (VCI) from the vehicle and end the diagnosis process.
13.1

Lock the vehicle.

13.2

Establish bus idle for at least 10 minutes.

13.3

After bus idle, re-connect the PIWIS Tester (VCI) and start the diagnosis again.

14 Electronic operating instructions. For more information, see  Workshop Manual '9X00IN Diagnostic system: Performing vehicle handover'(Install Onboard Owner's Manual section).
15 Read out all fault memories, process and delete existing faults if necessary.

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WNJ8

Technical Information

ENU 135/22

Information
If control units are found to have faults that are not caused by control unit programming, these
must first be found and corrected. This work cannot be invoiced under the workshop campaign
number.
16 Press •F3“ to start the integration test in the control unit selection.
All affected control units should now be successfully re-programmed or checked in the control unit
overview and their status.
Information
If a deviation in the system test is still indicated despite programming being carried out, this must be
repeated. If the deviation persists, contact Technical Support.
17 Create Vehicle Analysis Log (VAL) using the PIWIS Tester.
Mark the vehicle analysis log you have just created with the attribute “Post-VAL” and after carrying
out the campaign, return it using the PIWIS Tester.
18 Exit the diagnostic application. Switch off ignition. Disconnect the Tester from the vehicle.
Information
If the navigation database is not up-to-date, malfunctions cannot be ruled out after updating the
central computer (PCM).
The complete update process will take up to 45 minutes.
After inserting the USB stick, a minimum waiting time of up to 5 minutes must be observed before
starting the update.
If the update does not start and the message Data for the update on the storage medium is
invalid appears, the current navigation database is already on the vehicle. The update can then be
cancelled.
The ignition switches off automatically after 30 minutes. For this reason, the driver’s door must be
opened and closed again once after 25 minutes. If this is not done, the installation process must be
repeated.
By re-inserting the USB stick, it can be checked at any time whether the data was loaded
successfully.
19
For more information, see: Programming central computer data update:  Workshop Manual
'9X00IN Programming navigation update on central computer'
For an overview of the navigation database, see  Technical Information '9X00IN Overview of navigation software for USB stick'.

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Technical Information

135/22 ENU

WNJ8

9

20 Switch off and disconnect the battery charger.
21 Set battery charger back to a charge voltage of 14.4 volts.
Information
An excessively high charge voltage can lead to battery defects in other model lines.