No. 71-72

Service
Technical Information
71/22
ENU
WND4
9
WND4 - Replacing Over the Air (OTA) Control Unit or Gateway or Re-Programming
Gateway Control Unit (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:
As of 2022
Model Line:
Panamera (971)
Concerns:
Gateway control unit
Information:
The vehicle user's personalized login to the central computer (PCM) is not possible due to a
software error.
As a result, the PCM web apps, personalized services and remote access are not available.
Action required: Re-program the gateway control unit using the PIWIS Tester with software version 40.850.050 (or
higher) installed.
Affected
Vehicles:
Only vehicles assigned to the campaign (see also PCSS Vehicle Information).
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:
As of 2022
Model Line:
911 (992)
Concerns:
Gateway control unit
Information:
The vehicle user's personalized login to the central computer (PCM) is not possible due to a
software error.
As a result, the PCM web apps, personalized services and remote access are not available.
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Apr 26, 2022
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Service
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Technical Information
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Action required: Replace the gateway control unit.
Affected
Vehicles:
Only vehicles assigned to the campaign (see also PCSS Vehicle Information).
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:
As of 2022
Model Line:
Taycan (Y1A/Y1B/Y1C)
Concerns:
Over-the-air control unit
Information:
The vehicle user's personalized login to the central computer (PCM) is not possible due to a
software error.
As a result, the PCM web apps, personalized services and remote access are not available.
Action required: Replace over the air control unit.
Affected
vehicles:
Only vehicles assigned to the campaign (see also PCSS Vehicle Information).
Required tools (Panamera, Taycan)
Tool:
•
•
9900 - 9900 - PIWIS Tester 3 with PIWIS Tester software version 40.850.050 (or higher)
installed
Battery charger with a current rating of at least 90 A and a current and voltage-controlled
charge map for lithium starter batteries, e.g. VAS 5908 - battery charger 90 A
Required tools (911)
Tool:
•
•
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9900 - 9900 - PIWIS Tester 3 with PIWIS Tester software version 40.850.050 (or higher)
installed
Battery charger with a current rating of at least 90 A and a current and voltage-controlled
charge map for lithium starter batteries, e.g. VAS 5908 - battery charger 90 A
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Service
Technical Information
71/22
ENU
WND4
9
Programming gateway control unit - Scope 1 (Panamera)
Work Procedure: 1
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'.
For specific information on control unit programming during this campaign, see table
below.
Required PIWIS Tester software version:
40.850.050 (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:
U7D3N
Programming sequence:
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 (approx):
20 minutes
Software version programmed during this
campaign:
•
Procedure in the event of error messages
appearing during the programming sequence:
 Workshop Manual 'Basic instructions and
Procedure in the event of abnormal termination
of control unit programming:
Repeat control unit programming by restarting
programming.
2
Gateway control unit: 0613
Following control unit programming, the software
version can be read out from the relevant control
unit in the  'Extended identifications' menu using
the PIWIS Tester.
procedure for control unit programming using the
PIWIS Tester'.
Read out all fault memories, process and delete existing faults if necessary.
AfterSales
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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.
3
Create Vehicle Analysis Log (VAL) using the PIWIS Tester.
Mark the vehicle analysis log you have just created with the attribute "Final VAL" and after carrying
out the campaign, return it using the PIWIS Tester.
4
Enter the campaign in the Guarantee and Maintenance booklet.
Replacing gateway control unit - scopes 2 and 3 (911)
Work Procedure: 1
Remove and install gateway control unit.
For instructions, see:  Workshop Manual 'Removing and installing gateway control unit'
2
Replace gateway control unit.
For instructions, see:  Workshop Manual 'Replacing gateway control unit'
3
Read out all fault memories, process and delete existing faults 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.
4
Create Vehicle Analysis Log (VAL) using the PIWIS Tester.
Mark the vehicle analysis log you have just created with the attribute "Final VAL" and after carrying
out the campaign, return it using the PIWIS Tester.
5
Enter the campaign in the Guarantee and Maintenance booklet.
Replacing Over the Air control unit - Scope 4 (Taycan)
Work Procedure: 1
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Remove and install over the air control unit.
For instructions, see:  Workshop Manual 'Removing and installing over the air control unit'
2
Replace over-the-air control unit.
For instructions, see:  Workshop Manual 'Replacing over-the-air control unit'
3
Read out all fault memories, process and delete existing faults if necessary.
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Service
Technical Information
71/22
ENU
WND4
9
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.
4
Create Vehicle Analysis Log (VAL) using the PIWIS Tester.
Mark the vehicle analysis log you have just created with the attribute "Final VAL" and after carrying
out the campaign, return it using the PIWIS Tester.
5
Enter the campaign in the Guarantee and Maintenance booklet.
Warranty processing (Panamera)
Scope 1:
Labor time:
Re-programming gateway control unit
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Reading out and erasing fault memories
Create Vehicle Analysis Logs (VALs) after completing the
campaign
Labor time: 101 TU
 Damage code WND4 066 000 1
Warranty processing (911)
Scope 1:
Scope 2:
Not relevant for this vehicle type.
Labor time:
Replacing gateway control unit
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Reading out and erasing fault memories
Create Vehicle Analysis Logs (VALs) after completing the
campaign
Labor time: 234 TU
Required parts:
V04015001HC
 Gateway control unit
1 ea.
9A700775500
 Cheese head bolt
2 ea.
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WND4
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Technical Information
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N 98925801
 Cheese head bolt
2 ea.
N 91026201
 Hexagon collar nut
2 ea.
 Damage code WND4 066 000 2
Scope 3:
•
992 (GT3) with I-no. '2Y6' (SAFETY CAGE)
Labor time:
Replacing gateway control unit
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Removing and installing roll-over bar
Reading out and erasing fault memories
Create Vehicle Analysis Logs (VALs) after completing the
campaign
Required parts:
V04015001HC
 Gateway control unit
1 ea.
9A700775500
 Cheese head bolt
2 ea.
PAF910758
 Cheese head bolt
4 ea.
PAF104513
 Cheese head bolt
2 ea.
PAF912572
 Hexagon flange bolt
6 ea.
PAF003923
 Hexagon nut
6 ea.
 Damage code WND4 066 000 2
Apr 26, 2022
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AfterSales
Labor time: 392 TU
Service
Technical Information
71/22
ENU
WND4
9
Warranty processing (Taycan)
Scope 1-3:
Scope 4:
Not relevant for this vehicle type.
Labor time:
Removing over-the-air control unit
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Reading out and erasing fault memories
Create Vehicle Analysis Logs (VALs) after completing the
campaign
Labor time: 125 TU
Required parts:
V04015001HD
 Control unit for online services
1 ea.
 Damage code WND4 066 000 2
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.
AfterSales
Apr 26, 2022
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