No. 236-24 Service Campaign

Service
Technical Information
236/24 ENU
WRX1
9
WRX1 - Update to Software Network VR14 (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:
2024
Change

Overview:
Release
Date
Change
0
01/17/2025
•
First publication
1
01/24/2025
•
Update of required tester

release
2
04/01/2025
•

•
Addition of Scopes

Update of Information for

Work Procedure: Update on

software network VR14 - all

scopes

Update of Work Procedure:

Update on software network

VR14 - all scopes (5., 9., 16)

Update of Work Procedure:

Additional instructions if

programming is aborted
•

•
3
02/03/2026
•
Update of (Additional

instructions if programming

is aborted) — High-voltage

battery control unit (BECM)
Model Line:
Cayenne (9YA / 9YB)
Concerns:
Software update (software network VR14)
Cause:
Software optimizations are available for various control units for the Cayenne.

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'
AfterSales
Feb 3, 2026

Page 1 of 25
9
Service
Technical Information
ENU 236/24
WRX1
Measures:
•

•

•
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. The checklist must be

completed in the PQIS quality line attached in the PCSS.

For checklist, see ⇒ Technical Information 'Checklist'
Affected

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

•

•
Re-program the control units with the latest PIWIS Tester software release.

Minimum requirement: Release 43.200.040 (or higher)

Replace the Owner's Manual in the on-board folder in the vehicle with an updated status
•

•

•
Scope 1: Change vehicle order in instrument cluster and update to software network VR14

Scope 2: Change vehicle order in instrument cluster and update to VR14 software network (only valid

for vehicles with Burmester® 3D High-End Surround Sound System (M-No. 9VJ) with hardware release

HW5)

Scope 3: Update to software network VR14

Scope 4: Update to VR14 software network (only valid for vehicles with Burmester® 3D High-End

Surround Sound System (M-No. 9VJ) with hardware release HW5)

Scope 5: Not applicable for NAR

Scope 6: Re-program external acoustics (eSound) control unit and update to VR14 software network

Scope 7: Create PRMS ticket (indicate “WRX1, scope 7” in the short description)
•

•

•

•
Battery charger with a current rating of at least 90 A, e.g., VAS 5908 battery charger 90 A

P90999 - P90999 - PIWIS Tester 4

USB storage medium Type A+C 32 GB (for PCM update)

USB storage medium, Type C (for on-board Owner's Manual update)
•

•
Required tools

Tools:
Update on software network VR14 - all scopes

Information

As soon as an interaction is required during programming, this is indicated by activation of the hazard

warning lights (except USA and Canada). The hazard warning lights must be deactivated manually following

interaction.
Information

Before programming sequence 1, start logging with •P2“.

In the event of a fault, this logging should always be

Logging is ended automatically after approx. 1 hour.

Work Procedure: 1
Feb 3, 2026

Page 2 of 25
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'.
AfterSales
Service
Technical Information
236/24 ENU
WRX1
9
Information

Before starting programming, the battery charger must necessarily be:

•
Switched 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).
•
Operate in charging mode.
•
The vehicle must be on a level surface.
•
Air suspension must be at normal level.
•
Switching off air-conditioning system.
•
Vehicles with a PVTS contract must have Service mode activated.
•
An active Internet connection with the PIWIS Tester must be maintained.
•
To log in using the PIWIS Tester, the technician is required.
•
Place the original remote control in the emergency start tray (note the position)!
•
The PIWIS Tester must not be charged using the cigarette lighter!
2
After the backup documentation process, the integration test is started automatically. The result is

initially to 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
Change vehicle order. (Only valid for vehicles with Scope 1 and 2)
5
4.1
In the control unit selection (‘Overview’ menu) press •F7“ to call up the Additional menu.
4.2
Select ‘Vehicle data care with PIWIS ONLINE’ and press •F12“ (‘Next’) to confirm.

The guided Tester procedure starts and the vehicle data is compared between the vehicle and

PIWIS ONLINE.
4.3
Save the changes by pressing •F8“.
Re-program external acoustics control unit (eSound) (only valid for vehicles with scope 6)

For specific information on control unit programming during this campaign, see the table below.

Required PIWIS Tester software release:
43.200.040 (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.
AfterSales
Feb 3, 2026

Page 3 of 25
9
Service
Technical Information
ENU 236/24
WRX1
Programming code:
E3E3S
Programming sequence:
Read and follow the information and instructions

on the PIWIS Tester during the guided

programming sequence.

Do not interrupt the programming and coding

process.

After programming has been carried out, the

result of the programming is to be checked and,

in the event of deviations, the corresponding

control unit is to be re-programmed or re-coded.

A backup documentation process for the

re-programmed software releases starts once

programming and coding is complete.
Programming time (up to):
•
18 minutes
Control units programmed as part of this

campaign:
•
Control unit for exterior acoustics (eSound)
Procedure if error messages appear during

programming sequence:
⇒ Workshop Manual '9X00IN Basic instructions

and procedure for control unit programming using

the PIWIS Tester – Section on "Troubleshooting"'
Procedure in the event of a termination in the

control unit programming:
Continue campaign sequence to the end. Perform

the integration test again after completion and

start programming from the integration test.

Create a screenshot of the overview menu at the

end of programming if one or more control units

have not been successfully programmed or coded.

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

6
Update software of various control units (Sequence 1). (Valid for all scopes)

For specific information on control unit programming during this campaign, see the table below.
Information

Please inform the customer that the set values are lost after updating the instrument cluster.
Feb 3, 2026

Page 4 of 25
AfterSales
Service
Technical Information
236/24 ENU
WRX1
9
Required PIWIS Tester software release:
43.200.040 (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:
E3C2P
Programming sequence:
Read and follow the information and instructions on

the PIWIS Tester during the guided programming

sequence.

Do not interrupt the programming and coding

process.

After programming has been carried out, the result

of the programming must be checked and, in the

event of deviations from individual control units, the

corresponding control unit must be re-programmed

or re-coded.

A backup documentation process for the

re-programmed software releases starts once

programming and coding is complete.
Programming time (up to):
•

•
305 minutes

The duration of the programming the control

units depends on the build status and can differ

from the specified time.
Control units programmed as part of this

campaign:
•
⇒ Technical Information '9X00IN Overview of
Procedure if error messages appear during

programming sequence:
⇒ Workshop Manual '9X00IN Basic instructions and
Procedure in the event of a termination in the

control unit programming:
Continue campaign sequence to the end. Perform

the integration test again after completion and start

programming from the integration test.
VR14 control units'
procedure for control unit programming using the

PIWIS Tester – Section on “Troubleshooting”'
Create a screenshot of the overview menu at the end

of programming if one or more control units have not

been successfully programmed or coded.
AfterSales
Feb 3, 2026

Page 5 of 25
9
Service
Technical Information
ENU 236/24
WRX1
Additional instructions for aborted programming

⇒ Technical Information '9X00IN Additional

instructions if programming is aborted'

7
When programming is complete, backup documentation including the integration test is done again.

The result is initially to be ignored because this sometimes displays control units that are displayed as

faulty despite programming.

To check this, the integration test must be started again on the start page by pressing the •F3“

button. This process is to be repeated up to three times.

If this results in a discrepancy here, the relevant control unit must be re-programmed. The central

computer (PCM) control unit is not to be programmed initially because this is programmed in sequence

2.

Sequence 2 may only be started after successful completion of sequence 1.

For vehicles with Scope 5, continue with work step 11.
8
Re-program central computer (PCM) (sequence 2) – only valid for vehicles with scopes 1 to 4 and

scope 6

For specific information on control unit programming during this campaign, see the table below.

Preparing USB stick with the required software (depending on country version)

Overview of the software to be used for the central computer (PCM): ⇒ Technical Information '9X00IN

Overview of PCM update'

The battery charger must be switched off and on once before sequence 2 completely due to the

automatic switchover (trickle charging).
9
Select the 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 defect 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.
Feb 3, 2026

Page 6 of 25
AfterSales
Service
Technical Information
236/24 ENU
WRX1
9
Required PIWIS Tester software release:
43.200.040 (or higher)
Type of control unit programming:
In the control unit selection (‘Overview’ menu), select

the PCM central computer control unit and select the

‘Service / repairs’ menu.

Select the ‘Install software update’ function and

press •F12“ (‘Next’) to perform the software

update.
Programming code:
E3M1B
Programming sequence:
Read and follow the information and instructions on

the PIWIS 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 once

programming and coding is complete.
Programming time (up to):
30 minutes
Control unit programmed in this campaign:
•
Procedure if error messages appear during

programming sequence:
⇒ Workshop Manual '9X00IN Basic instructions and
Procedure in the event of a termination in the

control unit programming:
Repeat control unit programming by restarting

programming.
⇒ Technical Information '9X00IN Overview of

VR14 control units'

12 3 4

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