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

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Technical Information

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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

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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.

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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.

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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.

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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.

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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'