NHTSA ID Number: 11016759
Manufacturer Communication Number: No. 236-22
TSB/Document Date: 2025-04-07
Summary
Technical Information - WNT1 - Re-Programming Connect Control Unit and Central Computer(PCM)(Cluster37) (Workshop Campaign)
Service
Technical Information
236/22 ENU WNT1
9
WNT1 - Re-Programming Connect Control Unit and Central Computer (PCM) (Cluster 37) (Workshop
Campaign)
Revision:
This bulletin replaces bulletin Group 9 236/22 WNT1, dated July 28, 2023.
Model Year:
2022
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:
911 (992)
Concerns:
Connect control unit and central computer (PCM)
Cause:
Optimized software is available for the Connect control unit and central computer (PCM) control unit.
Measures:
Information
The Owner's Manual of the 992 GT3 differ from the other 992 derivatives! Observe part number.
•
•
•
Depending on the booked scope, the Connect control unit and the central computer (PCM) control unit
must be re-programmed with the latest PIWIS Tester software version.
Minimum requirement: Version 43.200.020
Replace Owner's Manual in the on-board folder in the vehicle with an updated version.
Checklist:
For better clarity, a checklist was created as an aid for carrying out the campaign. This does not replace TI.
The checklist does not have to be attached to the job line in PCSS.
For checklist, see ⇒ Technical Information 'Checklist'
Affected
Vehicles:
Only vehicles assigned to the campaign (see also PCSS Vehicle Information).
Required tools
Tools:
•
•
•
•
9900 - PIWIS Tester 3/ 4
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
AfterSales
Mar 6, 2025
Page 1 of 17
9
Service
Technical Information
ENU 236/22
WNT1
Re-programming Connect control unit and central computer (PCM) (Cluster 37) (not GT3)
Work
Procedure:
Information
Before starting programming, particular attention must be paid to the following:
•
The charger must 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).
•
Set charge voltage to 14.6 volts.
•
Operate in charging mode.
•
Vehicles with a PVTS contract must be activated for Service mode.
•
The PIWIS Tester must not be charged using the cigarette lighter!
1
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.
If Scope 4 is assigned to the vehicle, continue with Step 2.
If Scope 5 is assigned to the vehicle, continue with Step 3.
Information
Currently, there is an error when programming the Connect control unit. The programming stops at 100%,
nevertheless, the compound test shows a green result.
If the programming stops, the process needs to be continued. In case the ignition stops working, the vehicle
needs to be locked once, afterwards the ignition will work again. This issue is known and will be corrected in
2-3 weeks.
2
Program Connect control unit.
For specific information on control unit programming during this campaign, see table below.
Mar 6, 2025
Page 2 of 17
Required PIWIS Tester software version:
43.200.020 (or higher)
Type of control unit programming:
Control unit programming using the ‘Automatic
programming’ function of the Connect control
unit.
AfterSales
Service
Technical Information
236/22 ENU WNT1
Programming sequence:
9
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'.
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 units programmed in this campaign:
•
Procedure in the event of error messages
appearing during the programming sequence:
⇒ Workshop Manual '9X00IN Basic instructions
and procedure for control unit programming using
the PIWIS Tester - section on “Fault finding”'
Procedure in the event of a termination in the
control unit programming:
Repeat control unit programming by restarting
programming.
Connect control unit
Additional instructions for aborted programming
⇒ Technical Information '9X00IN Additional
information if programming is aborted'
3
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 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.
4
Re-program main computer (PCM).
Information
Intermittently, there is a possibility that the mobile phone will be lost.
If this is the case, the customer must be informed when returning the vehicle.
AfterSales
Mar 6, 2025
Page 3 of 17
9
Service
WNT1
Technical Information
ENU 236/22
For specific information on control unit programming during this campaign, see table below.
Prepare USB stick with the required software (depending on country version).
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:
43.200.020 (or higher)
Type of control unit programming:
Programming with USB drive
Programming code:
X3G5A
Programming sequence:
Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.
In the control unit selection (“Overview” menu)
select the PCM central computer control unit and
select the “Maintenance/repairs” menu.
Select the ‘Install software update’ function and
press •F12“ (‘Next’) to perform the software
update.
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.
⇒ Workshop Manual '9X00IN Programming data
update on central computer'
Mar 6, 2025
Page 4 of 17
Programming time (up to):
25 minutes
Control unit programmed in this campaign:
•
AfterSales
Control unit for central computer (PCM)
3885
Service
Technical Information
236/22 ENU WNT1
9
Procedure in the event of error messages
appearing during the programming sequence:
⇒ Workshop Manual '9X00IN Basic instructions
and procedure for control unit programming using
the PIWIS Tester - section on “Fault finding”'
Procedure in the event of a termination in the
control unit programming:
Repeat control unit programming by restarting
programming.
Additional instructions for aborted programming
⇒ Technical Information '9X00IN Additional
information if programming is aborted'
5
Play electronic Owner's Manual. For more information, see ⇒ Workshop Manual '9X00IN Diagnostic
system: Performing vehicle handover' (Install Owner's Manual section)
6
Read out all error memories, process and delete existing errors if necessary.
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.
7
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 integration test is still indicated despite programming being carried out, this must be
repeated. If the deviation persists, contact Technical Support.
8
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.
9
Exit the diagnostic application. Switch off ignition. Disconnect the Tester from the vehicle.
10 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.
11 Replace Owner's Manual in the vehicle.
For an overview of the Owner's Manuals, see: ⇒ Technical Information '9X00IN Overview of Order
Numbers for Driver’s Manual (not GT3)'
AfterSales
Mar 6, 2025
Page 5 of 17
9
Service
Technical Information
ENU 236/22
WNT1
Information
The vehicle may only be handed over to the customer with the new Owner's Manual.
12 Enter the campaign in the Warranty and Maintenance booklet.
Re-programming central computer (PCM) and Connect control unit (Cluster 37) (only GT3)
Work
Procedure:
Information
Before starting programming, particular attention must be paid to the following:
•
The charger must 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).
•
Set charge voltage to 14.6 volts.
•
Operate in charging mode.
•
Vehicles with a PVTS contract must be activated for Service mode.
•
The PIWIS Tester must not be charged using the cigarette lighter!
1
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.
If Scope 4 is assigned to the vehicle, continue with Step 2.
If Scope 5 is assigned to the vehicle, continue with Step 3.
Information
Currently, there is an error when programming the Connect control unit. The programming stops at 100%,
nevertheless, the compound test shows a green result. If the programming stops, the process needs to be
continued. In case the ignition stops working, the vehicle needs to be locked once, afterwards the ignition will
work again. This issue is known and will be corrected in 2-3 weeks.
2
Program Connect control unit.
For specific information on control unit programming during this campaign, see table below.
Mar 6, 2025
Page 6 of 17
Required PIWIS Tester software version:
43.200.020 (or higher)
Type of control unit programming:
Control unit programming using the ‘Automatic
programming’ function of the Connect control
unit.
AfterSales
Service
Technical Information
236/22 ENU WNT1
Programming sequence:
9
The basic procedure for control unit programming
is described in the Workshop Manual ⇒ Workshop
Manual '9X00IN Basic Instructions and Procedure
for Control Unit Programming Using the PIWIS
Tester'.
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.
⇒ Workshop Manual '9X00IN Programming data
update on central computer'
Programming time (up to):
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
and procedure for control unit programming using
the PIWIS Tester - section on “Fault finding”'
Procedure in the event of a termination in the
control unit programming:
Repeat control unit programming by restarting
programming.
Connect control unit
Additional instructions for aborted programming
⇒ Technical Information '9X00IN Additional
information if programming is aborted'
3
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 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.
4
Re-program main computer (PCM).
AfterSales
Mar 6, 2025
Page 7 of 17
9
Service
WNT1
Technical Information
ENU 236/22
Information
Intermittently, there is a possibility that the mobile phone will be lost.
If this is the case, the customer must be informed when returning the vehicle.
For specific information on control unit programming during this campaign, see table below.
Prepare USB stick with the required software (depending on country version).
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:
43.200.020 (or higher)
Type of control unit programming:
Programming with USB drive
Programming code:
X3G5A
Programming sequence:
Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.
In the control unit selection (“Overview” menu)
select the PCM central computer control unit and
select the “Maintenance/repairs” menu.
Select the ‘Install software update’ function and
press •F12“ (‘Next’) to perform the software
update.
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.
Mar 6, 2025
Page 8 of 17
Programming time (up to):
25 minutes
Control unit programmed in this campaign:
•
AfterSales
Control unit for central computer (PCM)
3885
Service
Technical Information
236/22 ENU WNT1
9
Procedure in the event of error messages
appearing during the programming sequence:
⇒ Workshop Manual '9X00IN Basic instructions
and procedure for control unit programming using
the PIWIS Tester - section on “Fault finding”'
Procedure in the event of a termination in the
control unit programming:
Repeat control unit programming by restarting
programming.
Additional instructions for aborted programming
⇒ Technical Information '9X00IN Additional
information if programming is aborted'
5
Play electronic Owner's Manual. For more information, see ⇒ Workshop Manual '9X00IN Diagnostic
system: Performing vehicle handover' (Install Owner's Manual section)
6
Read out all error memories, process and delete existing errors if necessary.
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.
7
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
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TSB/Document ID: No. 236-22
Replacement Service Bulletin Number:
MFR Communication Date: 2025-03-07
MFR Internal Campaign ID/Software Version: WNT1
Communication Type: Service Campaign
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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