Service

Technical Information

2025

ENU

WSJ0

9

WSJ0 – Update to Software Network VR28.13 (Workshop Campaign)

Change
Overview:

Release

Date

Change

0

11/04/2025

•

Original publication

1

11/05/2025

•

Addition of reference to
Note attached on PPN page
for this Campaign
Update to Note attached on
PPN page for this Campaign
Update to ‘Notice’ under
Work Procedure Step 3

•
•
2

11/06/2025

•

Addition of ‘Checklist’
section as a separate
attachment on PPN

3

11/12/2025

•

Update to Checklist:
Addition of step 17 &
modification of step 19

4

12/19/2025

•

Update to minimum
required Porsche Tester
software release
Addition of step 17 within
Work Procedure section
Addition of step 23 in
Checklist

•
•
5

02/09/2026

•
•

•

•
6

03/02/2026

AfterSales

•

Update to minimum
required Porsche Tester
software release
Update to “Update to
software network VR28.13”,
work procedure step 2, and
step 3
Update to “Additional
information on control unit
programming and coding”,
work procedure
Update to “Checklist”, step
10
Update to work procedure
“During the update”, “HCP2
driver assistance main
control unit (J1274)”,

Mar 2, 2026
Page 1 of 20

9

Service
WSJ0

ENU

Technical Information

2025

and “Main control unit for
gateway HCP5 (J1273)”
Model Year:

As of 2023 up to 2025

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 Line:

Macan Electric (XAB)

Concerns:

Software update (software version VR28.13)

Information:

Software optimizations are available for various control units for the Macan Electric.
An overview of the improvements that will be integrated with this software update can be found in the
appendix under ⇒ Technical Information 'Overview of new features of the software update'

Action:

•
•

Perform reprogramming of the affected vehicle using the Porsche Tester on software network VR28.13
Minimum requirement: Release 43.900.000 (or higher)

Checklist:

Due to the high number of programming steps incorrectly carried out as part of the last software update, a
checklist was created to improve the overview of the work to be carried out. This can be used as a tool at the
start and for support during the update.
The checklist must be completed, signed and attached to the PQIS quality line in the PCSS.
For the checklist, see ⇒ Technical Information 'Checklist'
Please see note attached on PPN page for this campaign. https://ppn.porsche.com/portal/docs/DOC581802.

Supporting
Videos:

For a better overview of the work to be carried out, several supporting videos have been created for individual
work steps.
NOTE: Some videos have German language voiceover.
The supporting videos are available in PCSS: ⇒ Workshop Manual '9X00IN10 Electrical system – general
information (implementation of a software network update)'

Affected
Vehicles:

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

Mar 2, 2026
Page 2 of 20

AfterSales

Service

Technical Information

2025

ENU

WSJ0

9

Required tools
Tools:

•
•

Porsche Tester P90999 - Porsche Tester 4
Battery charger with a current rating of at least 90 A, e.g., VAS 5908 - 90-A battery charger. For
further information about the battery chargers to be used, see the corresponding Workshop Manual. ⇒
Workshop Manual '270689 Charge battery and vehicle electrical system'

Update to software network VR28.13
NOTICE
Sitting inside the vehicle during the update
•

Update cancelled by automatic ignition activation

Þ
⇒

Avoid sitting inside the vehicle during the update.
NOTICE

The specified update process was not followed
•

Update cancellation

•

Destruction of control units

Þ
⇒

Observe and follow the procedures displayed for the update and instructions for the Porsche Tester

Þ
⇒

Do not switch the ignition on/off without instruction from Porsche Tester

Þ
⇒

Repeat the programming only if a failed update is displayed on the Porsche Tester

AfterSales

Mar 2, 2026
Page 3 of 20

9

Service
WSJ0

ENU

Technical Information

2025

Information
Vehicle update – general information
The entire vehicle network will be checked for a necessary update or computed to ensure fault-free functioning of the vehicle. For this purpose, the following preparations are to be made:
•

Latest release on available on Porsche Tester 4 and PiUS

•

Vehicle is fully built up

•

To prevent potential faults due to insufficient data transfer, carry out the software update using
a cable (between VCI and Porsche Tester). Only if sufficient WLAN availability is ensured in the
workshop can a wireless update be performed

•

The user must be logged into the Porsche Tester 4 in the PPN

•

The vehicle must be supported with an external charger

•

Seat heating and seat ventilation are not active

•

Place the original hand-held transmitter in the emergency start tray (see Workshop Manual)

For this update procedure, the respective vehicle no longer needs to be in transport mode
Procedure for new vehicles with active transport protection:
Perform “Vehicle handover” routine according to the Porsche Tester instructions, to deactivate transport
protection.
Always make sure: to answer the question of “Is this a new vehicle?” asked by the Tester with No!
As a result, no complete vehicle commissioning is carried out and only transport protection can be deactivated.
Work Procedure: 1

Observe preconditions for control unit programming.

⇒ Technical Information '9X10IN Basic instructions and procedure for control unit programming using
the PIWIS Tester Information'

Information
An active internet connection with the Porsche Tester must be ensured.
The technician must log in to PPN with the Porsche Tester.
The Porsche Tester must not be charged using the cigarette lighter.

Information
Before starting the diagnosis, it is essential for an ignition change to be performed on the vehicle.
Subsequently, after starting the diagnosis, the VCI will be automatically initialized and the control unit
data is loaded.
For additional information on the programming procedure and when the process is aborted, see ⇒
Technical Information '9X10IN Additional information on control unit programming and coding'.

Mar 2, 2026
Page 4 of 20

AfterSales

Service

Technical Information
2

2025

ENU

WSJ0

9

Prepare an update of the various control units on software network VR28.13.
2.1

Start new logging via •P2“.

2.2

Press •F3“ to start the integration test in the control unit overview.
Create a Vehicle Analysis Log (VAL). Mark the created VAL with the attribute “Pre-VAL” and, after
carrying out the campaign, return it using the Porsche Tester.
The required updates are then automatically displayed for the respective vehicle in accordance
with the integration test.

Information
Due to overload of the onboard tester, an interruption may occur intermittently in the step “Onboard tester
downloads update”.
In this case, the Porsche Tester will automatically restart the entire update process.
No intervention by the user is required!
3

Update the software of various control units on software network VR28.13.
Start the software update with ‘Campaign’ •F5“ and program as per the menu.
After the update has been completed, a corresponding confirmation is displayed on the Porsche Tester.
All affected control units should now be successfully programmed or checked in the results view
showing the control units and their status.
Information
If a deviation in the integration test is still indicated despite the programming carried out, this must be
repeated. If the deviation persists, contact Technical Support.

Information
The entire update process for this action takes approx. 120 minutes depending on the equipment.
However, the download speed of the update package depends on the performance of the local network
and can vary accordingly.

Information
During the update process, all displays in the vehicle (instrument cluster, central display and passenger
display) are occasionally switched off. Nevertheless, the programming is ongoing, the ignition must not
be switched on/off, as this can result in the destruction of the control units.
During the update, a buzzing of the acoustic simulator will sound several times. This noise is normal
and indicates an ongoing update of the HCP1 drive and chassis main control unit (J1312).

AfterSales

Mar 2, 2026
Page 5 of 20

9

Service
WSJ0

ENU

Technical Information

2025

If Wi-Fi coverage is insufficient, the connection
between the Porsche Tester and VCI can be interrupted
(battery charge indicator at the top right inactive on the
Tester display). The vehicle will, nevertheless, continue
programming independently. In the meantime, no
entry may be made on the Porsche Tester, and the
programming must not be restarted. In this case, the
update progress can still be checked in the vehicle in
the front display and control panel (R238) by going to
the “Messages” (RPC+) tile.
Update progress on central display
NOTICE
DO NOT Switch ignition on/off in the event of faults in the HCP4 body electronics main control unit (J519)
•

Destruction of control units

Þ
⇒

Do not switch the ignition on/off after completing the update if faulty HCP4 (J519) programming and coding is
displayed.
If the main HCP4 body electronics control unit (J519) has a programming and coding error in the results
view after programming is completed, follow the corresponding procedure in the section ⇒ Technical Information '9X10IN Additional information on control unit programming and coding'.
For specific information on control unit programming during this campaign, see the table below.
Required Porsche Tester software release:

43.900.000 (or higher)

Type of control unit programming:

Start control unit programming in the integration test
using the ‘Campaign’ function with •F5“

Campaign to be carried out: WSJ0
Programming sequence:

Read and follow the information and instructions on
the Porsche Tester during the guided programming
sequence.
Do not interrupt the programming and coding
process.
A backup documentation process for the
re-programmed software releases starts after
programming and coding.

Mar 2, 2026
Page 6 of 20

AfterSales

Service

Technical Information

2025

ENU

WSJ0

9

Programming time (up to):

120 minutes

Control units programmed as part of this
campaign:

See ⇒ Technical Information '9X10IN Overview of
the new features of the software update'.

Procedure if error messages appear during the
programming sequence:

⇒ Technical Information '9X10IN Basic instructions

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

Continue the campaign sequence to the end and,
once it is completed, perform the integration test
again and restart the programming.

and procedure for control unit programming using
the PIWIS Tester Information'

Specific information on the procedure in the event
of cancellation: ⇒ Technical Information '9X10IN
Additional information on control unit programming
and coding'
4

After the software update is complete, perform a vehicle bus idle.
Information
A bus idle is always required upon completion of a software update.
The duration of the required bus idle, however, depends on the number and type of control units
previously updated.
Therefore, please always note the information on the duration of the required bus idle in this Technical
Information.

5

6

4.1

Go back to the control unit overview by pressing •F11“.

4.2

End the readiness for operation of the vehicle (ignition off). Central computer (PCM) screen
switches off.

4.3

Wait for 10 minutes with the driver’s door open.

Check readiness for driving the vehicle.
5.1

Restore readiness for operation (ignition on).

5.2

Operate the footbrake and keep it pressed.

5.3

Use the selector lever to engage driving gears D and R one after the other. The selected gear
must be displayed in the gear indicator on the instrument cluster.

5.4

Activate the parking lock via button P.

End readiness for operation (ignition off) and restore it after waiting for approx. 30 seconds (ignition
on).

AfterSales

Mar 2, 2026
Page 7 of 20

9

Service
WSJ0

ENU

Technical Information

2025

7

Standardize the side windows (pulling and holding all four switches).

8

Read out and delete the fault memory.
Information
Due to the vehicle diagnosis and programming status (new vehicles), fault memory entries that do not
indicate an actual fault in the vehicle may be stored.
These fault memory entries, for the most part, can be deleted after vehicle handover has been
completed and a test drive.
The following fault memory entry is always stored as part of a vehicle diagnosis with the Porsche Tester
and does not represent an actual fault.
Control unit