No. 94-22-2

Service
Technical Information
94/22
ENU
WNE2
9
WNE2 - Re-Programming Instrument Cluster (Stop Delivery)
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:
2022
Model Line:
Panamera (971)
Concerns:
Instrument cluster
Information:
Due to the semiconductor shortages, the instrument cluster of the affected vehicles was built
up with an alternative chip for audio output.
With the current instrument cluster software, no visual error message is displayed in the instrument
cluster if the new chip fails. As a result, audio output in the instrument cluster would not work and a
corresponding error message will not be displayed.
Due to the possibility of failed programming, it is recommended that your dealer creates an extended
logging sequence before starting programming. This can be started and stopped by using CTRL+L. In
the event of failed programming, a PRMS ticket should be created as normal. Please attach the logging
file to the ticket in order to help PCNA to investigate and resolve the issue.
Action required: Re-program the instrument cluster using the PIWIS Tester with software version 41.000.030 (or higher)
installed.
NOTICE
Use of a PIWIS Tester software version that is older than the specified version
•
Measure is ineffective

Always use the prescribed version or a higher version of the PIWIS Tester software for control unit
programming.
Information
During the campaign, the instrument cluster is re-programmed and then coded automatically.
It takes about 60 minutes to program and code the instrument cluster.
Affected
Vehicles:
Only the vehicles assigned to the campaign (see also PCSS Vehicle Information).
AfterSales
May 20, 2022
Page 1 of 6
9
Service
WNE2
ENU
Technical Information
94/22
Required tools
Tool:
•
•
9900 - PIWIS Tester 3 with PIWIS Tester software version 41.000.030 (or higher) installed
Battery charger with a current rating of at least 90 A, e.g. VAS 5908 battery charger 90A
Preliminary work
NOTICE
Fault entry in the fault memory and control unit programming aborted due to low-voltage.
•
Increased current draw during diagnosis or control unit programming can cause a drop in voltage, which
can result in one or more fault entries and the abnormal termination of the programming process.

Before starting control unit programming, connect a suitable battery charger or power supply, suitable for
AGM type batteries, recommended current rating of 90A fixed voltage 13.5V to 14.5V.
NOTICE
Control unit programming will be aborted if the WLAN connection is unstable.
•
An unstable WiFi connection can interrupt communication between the PIWIS Tester and the vehicle
communication module (VCI). As a result, control unit programming may be aborted.

During control unit programming, always connect the PIWIS Tester to the vehicle communication module
(VCI) via the USB cable.
NOTICE
Control unit programming will be aborted if the driver's key is not recognized
•
If the driver's key is not recognized in the vehicle, programming cannot be started or will be interrupted.

Place the driver's key with the back facing down into the front left storage compartment in the center
console to guarantee a continuous radio link between the vehicle and the driver's key.
NOTICE
Completely flat vehicle battery
•
The break in communication in the vehicle system during programming causes safety-relevant functions,
e.g. driving light and brake light, to be switched on automatically. This results in an increased current
draw, which will run down the vehicle battery.

Before starting control unit programming, connect a suitable battery charger with a current rating of at
least 90 A to the vehicle.
Work Procedure: 1
May 20, 2022
Page 2 of 6
Carry out general preliminary work for control unit programming as described in  Workshop
Manual '9X00IN Basic instructions and procedure for control unit programming using the PIWIS
Tester'.
AfterSales
Service
Technical Information
94/22
ENU
WNE2
9
Information
Programming can cause the individual customer settings to be lost. Always check these and write them
down if necessary before getting started.
2
Check customer settings in the instrument cluster and write them down if necessary.
3
Connect a battery charger with a current rating of at least 90 A (e.g. Battery charger 90A) to the
jump-start terminals in the engine compartment.
For instructions, see  Workshop Manual '2706IN External power connection, jump-lead starting'
4
Place the driver's key with the back facing down in the
front left storage compartment in the center console
 Driver's key in storage compartment. This will
guarantee an uninterrupted radio link between the
vehicle and the driver's key.
5
Connect 9900 - PIWIS Tester 3 to the vehicle
communication interface module (VCI) via the USB
cable. Then connect the communication module to
the vehicle and switch on the PIWIS Tester.
Driver's key in storage compartment
6
Switch on ignition.
7
On the PIWIS Tester start screen, call up the 'Diagnostics' application.
The vehicle type is then read out, the diagnostic application is started and the control unit selection
screen is populated.
Re-programming instrument cluster
Work Procedure: 1
Re-programming instrument cluster.
NOTICE
Use of a PIWIS Tester software version that is older than the specified version
•
Measure is ineffective

Always use the prescribed version or a higher version of the PIWIS Tester software for control unit
programming.
AfterSales
May 20, 2022
Page 3 of 6
9
Service
WNE2
ENU
Technical Information
94/22
Information
The procedure described here is based on the PIWIS Tester 3 software version 41.000.030.
The PIWIS Tester instructions take precedence and in the event of a discrepancy, these are the
instructions that must be followed.
Deviations may occur with later software versions, for example.
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'.
For specific information on control unit programming during this campaign, see table
below.
Required PIWIS Tester software version:
41.000.030 (or higher)
Type of control unit programming:
Control unit programming using the
'Automatic programming' function of
the instrument cluster:
Instrument cluster' control unit –
'Coding/programming' menu –
'Automatic programming' function.
Read and follow the information and
instructions on the PIWIS Tester during
the guided programming sequence.
During the programming sequence, the
instrument cluster is re-programmed
and then automaticallyre-coded.
Programming sequence:
The display in the instrument cluster is
switched off during programming. The
ignition stays active in the background.
When the programming is completed
successfully, the display in the instrument
cluster will be switched on again automatically.
Switch the ignition off and then on
again only when prompted to do so by
the PIWIS Tester because otherwise,
programming will be interrupted and
will then have to be started again.
Programming time (approx):
May 20, 2022
Page 4 of 6
AfterSales
55 minutes
Service
Technical Information
94/22
Software version programmed during this
campaign:
ENU
WNE2
9
Instrument cluster
Software version: 0077
Following control unit programming, the
software version can be read out of the
instrument cluster in the 'Incremented
identification' menu using the PIWIS Tester.
2
Procedure in the event of abnormal termination of
control unit programming:
• Switch ignition off and then on again.
• Read out and erase the fault memory
 Workshop Manual '9X00IN Basic
instructions and procedure for control
unit programming using the PIWIS Tester
- “Rework” section'.
• Repeat control unit programming by
restarting programming.
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”'.
Once programming has been carried out successfully, continue with  Technical Information
'9X00IN Concluding work'.
Concluding work
Work Procedure: 1
Carry out general rework for control unit programming as described in  Workshop Manual '9X00IN
Basic instructions and procedure for control unit programming using the PIWIS Tester'.
Information
The values for the Tire Pressure Monitoring (TPM) system may be lost during re-coding of the instrument
cluster.
If the Tire Pressure Monitoring (TPM) system is reset, the wheel electronics must be re-taught and
adapted to the system.
Preconditions and procedure for teaching the wheel electronics units:
•
Vehicle is stationary for at least 5 minutes.
•
Select the type of tires installed (type and size) in the TPM menu in the instrument cluster. The
message "No monitoring. System is learning from 15 mph (25 km/h)" then appears in the
multi-function display.
•
Drive at a speed of more than 15 mph (25 km/h) - ideally without stopping - until the tire pressure
values are displayed (learning time: less than 2 minutes).
AfterSales
May 20, 2022
Page 5 of 6
9
Service
WNE2
ENU
Technical Information
94/22
The system learns the wheel electronics only while driving. Intermediate stops and deviations from the
described teaching procedure can result in a much longer learning time.
Teaching can be performed during the test drive or later while the customer is driving. Please inform your
customer about this if necessary.
2
Restore customer settings if necessary.
3
Enter the campaign in the Guarantee and Maintenance booklet.
Warranty processing
Information
The specified working times were determined specifically for carrying out this campaign and include all
necessary preliminary and subsequent work.
The working time may differ from the working time published in the Labor Operation List in the PCSS.
Scope 1:
Re-programming instrument cluster
Labor time:
Re-programming instrument cluster
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Check customer settings and restore if necessary
Reading out and erasing fault memories
Labor time: 45 TU
 Damage code WNE2 066 000 1
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.
© 2022 Porsche Cars North America, Inc.
May 20, 2022
Page 6 of 6
AfterSales