NHTSA ID Number: 11022995
Manufacturer Communication Number: No. 109-24
TSB/Document Date: 2025-09-09
Summary
Technical information for WPU1 – Supply Cable with NEMA Power Plug and Updating Porsche
Mobile Charger Software (Workshop Campaign). the affected vehicles are Taycan (Y1A / Y1B / Y1C), Panamera E-Hybrid (971), Cayenne E-Hybrid (9YA / 9YB)
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TSB/Document ID: No. 109-24
Replacement Service Bulletin Number:
MFR Communication Date: 2025-08-26
MFR Internal Campaign ID/Software Version: WPU1
Communication Type: Service Campaign
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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Service
Technical Information
109/24 ENU WPU1
WPU1 – Supply Cable with NEMA Power Plug and Updating Porsche Mobile Charger Software
(Workshop Campaign)
Change
Overview:
0
Version
Date
Change
0
07/05/2024
•
First publication
2
09/11/2024
•
Update of PIWIS Tester
software version
Update of IC-CPD Basic UL
9.6 kW part number
Addition of note regarding
different NEMA cables
Update of part numbers for
new charging cable with
NEMA plug types
Addition of Mobile Charger
Connect SW and Scopes
•
•
•
•
3
02/18/2025
•
Addition of note to replace
units with part number
9Y0971675DM, in the
event of a failure.
4
08/25/2025
•
Information note added
regarding scope 18-19
Update of Porsche Mobile
Charger with existing
remedial action overview
Update of required PIWIS
Tester software release
•
•
Model Year:
As of 2019 up to 2024
Model Line:
Taycan (Y1A / Y1B / Y1C)
Panamera E-Hybrid (971)
Cayenne E-Hybrid (9YA / 9YB)
Concerns:
Industrial (250V) NEMA Supply Cable and charger
Cause:
Due to quality defects, the in-house infrastructure connection cable for the Porsche Mobile Charger was
not supplied ex works to the affected vehicles.
AfterSales
Aug 25, 2025
Page 1 of 22
0
Service
Action:
Technical Information
ENU 109/24
WPU1
•
Vehicles with Porsche Mobile Charger Basic and Basic Plus (scope 2 - 11): Supply the optimized
supply cable with an integrated temperature sensor. In addition, the software on the Porsche Mobile
Charger must be updated with the PIWIS Tester and installed test software 43.500.060 (or higher). See
⇒ Technical Information 'Re-programming Porsche Mobile Charger (Powerboard) - Basic and Basic
Plus'
•
•
Vehicles with Porsche Mobile Charger Connect (scope 12 - 16): Supply the optimized supply cable
with an integrated temperature sensor. The software on the Porsche Mobile Charger also has to be
updated with the PIWIS Tester and installed testing software 43.500.060 (or higher) and via a Wi-Fi
connection. See ⇒ Technical Information 'Re-programming PorscheMobile Charger (Powerboard and
Communication Board) - Connect'
Vehicles that have already been delivered and assigned to the recall - Selected Porsche Mobile
Charger Basic (scope 18- 19): Replace the charging electronics (Porsche Mobile Charger) and the
charging cable of the Mobile Charger. In addition, the software on the Porsche Mobile Charger Basic
must be updated with the PIWIS Tester and installed test software 43.500.060 (or higher). For
information on part numbers, see warranty processing⇒ Technical Information 'Warranty processing',
scope 18 and 19. For the software update procedure, see⇒ Technical Information 'Re-program Porsche
Mobile Charger (Powerboard) - Basic and Basic Plus'
Information
Please note that only Porsche Mobile Chargers of the vehicles assigned to the scopes listed can be operated.
If a vehicle is not assigned to any of the possible scopes, the campaign cannot yet be carried out on it.
Software updates for Porsche Mobile Charger Part numbers 9Y0971675BB & 9Y0971675BA are not
available and these variants are not part of the WPU1 campaign. In the event of a failure, replace these units
with part number 9Y0971675DM or other Porsche Mobile Charger Basic as available.
Overview of affected Porsche Mobile Charger with existing remedial action:
Porsche Mobile Charger affected
Aug 25, 2025
Page 2 of 22
Powerboard target
software(or higher)
Communication Board
target software (or
higher)
Basic (UL 3.6 kW)
Part number: 7PP.971.675.AA
0630
-
Basic (UL 3.6 kW)
Part number: 9Y0.971.675.BA
0142
-
Basic (UL 9.6kW)
Part number: 7PP.971.675.AB
0630
-
Basic (UL 9.6kW)
Part number: 9Y0.971.675BB / DM
0142
-
Basic (IEC Type1 7.2 kW)
Part number: 9Y0.971.675.AR
0142
-
AfterSales
Service
Technical Information
109/24 ENU WPU1
Basic Plus (UL 9.6 kW)
Part number: 9J1.971.675.BC / F / R / AC / AJ /
AP
3,000
-
Basic Plus (IEC 7.2 kW)
Part number: 9J1.971.675.C / K / P
/AA/AG/AM/BA
3,000
-
Connect (UL 9.6 kW)
Part number: 9Y0.971.675.BL / DB / DK
4501
3030
Connect (IEC 22kW)
Part number: 9Y0.971.675.BJ / CT / DH
4502
3031
0
Information
In the event that customers have other affected Porsche Mobile Chargers (e.g. from Tequipment accessories), the remedial action can be carried out and invoiced as follows:
Affected
Vehicles:
•
Case 1: Customer vehicle is already assigned to this campaign: For all of the customer’s other Porsche
Mobile Chargers, invoice the Labor costs incurred via an application for a reimbursement claim to the
original campaign claim for this action.
•
Case 2: Customer vehicle is not assigned to this campaign: Assign the PRMS ticket to Warranty
Support —> Campaigns specifying the VIN and this campaign number noting that the VIN is assigned
to the campaign and scope 17. Scope 17 can then be invoiced with a time of 0 and 0 parts. Labor
costs incurred can then be invoiced using a reimbursement claim for the original campaign claim for this
action.
Only vehicles assigned to the campaign (see also PCSS Vehicle Information).
Required Tools
Tools:
•
•
P90999 - P90999 - PIWIS Tester 4 with test software version 43.500.060 (or higher) installed
VAS 611 009 Diagnostic adapter for high-voltage charging system
Replacing Porsche Mobile Charger supply cable with NEMA power plug
WARNING
Working on electric components
•
Risk of burns
•
Risk of short circuit or fire.
Þ
⇒
Before replacing the supply cable or vehicle cable, always disconnect the supply cable from the electrical socket.
Þ
⇒
Only replace cables in a dry environment.
⇒
Porsche universal charger (AC) may only be used as a unit comprising supply cable, control unit and vehicle cable.
AfterSales
Aug 25, 2025
Page 3 of 22
0
Service
Technical Information
ENU 109/24
WPU1
WARNING
Unsecured load
•
An unsecured, incorrectly secured or incorrectly positioned charger can slip out of place and endanger occupants when
braking, accelerating, changing direction or in the event of an accident.
Þ
⇒
Never transport the charger unsecured.
Þ
⇒
Stow the charger in the charging bag in the luggage compartment.
Þ
⇒
Always transport the charging bag in the luggage compartment, never in the passenger compartment (e.g. on or in front
of the seats).
Action:
1
Replace the supply cable for home infrastructure with
Þ NEMA
NEMA plug on the Porsche Mobile Charger ⇒
cable -1-. For an overview of affected supply cables,
see table below.
Information
Please note that there are two different versions of the
new NEMA supply cable. These differ only in the plug’s
direction of rotation. Otherwise, the supply cables are
Þ Different
identical. Initially available supply cables ⇒
NEMA cables -1- have part number V04015005BA /
Þ Different NEMA
-BC / -BB / -BD, and supply cables ⇒
cables -2- with the later design have part number
V04015001MH / -MK / -MJ / -ML. Please initially
use the first NEMA supply cables (V04015005BA /-BC
/-BB /-BD) until these are used up. The further version
(V04015001MH / -MK / -MJ / -ML) is then delivered
automatically later.
NEMA cable
Different NEMA cables
Aug 25, 2025
Page 4 of 22
AfterSales
Service
Technical Information
109/24 ENU WPU1
Affected supply cables with NEMA plug types
0
Part number of new industrial (250V) supply
cable with temperature sensing
NEMA 6–30
•
•
•
•
250 V
30A, 3 lines, 2 poles
5–5.8 kW
Part number 7PP.971.678.EA
V04015005BA (or V04015001MH)
For plug type, see ⇒ Industrial (250V) supply
cable plug types
NEMA 6–50
•
•
•
•
250 V
50A, 3 lines, 2 poles
8.3–9.6 kW
Part number 7PP.971.678.EC
V04015005BC (or V04015001MK)
For plug type, see ⇒ Industrial (250V) supply
cable plug types
NEMA 14–30
•
•
•
•
250 V
30A, 4 lines, 3 poles
5–5.8 kW
Part number 7PP.971.678.EB
V04015005BB (or V04015001MJ)
For plug type, see ⇒ Industrial (250V) supply
cable plug types
NEMA 14–50
•
•
•
•
250 V
50A, 4 lines, 3 poles
8.3–9.6 kW
Part number 7PP.971.678.ED
V04015005BD (or V04015001ML)
For plug type, see ⇒ Industrial (250V) supply
cable plug types
AfterSales
Aug 25, 2025
Page 5 of 22
0
Service
Technical Information
ENU 109/24
WPU1
Industrial (250V) supply cable plug types
Re-programming Porsche Mobile Charger (Powerboard) - Basic and Basic Plus
Action:
1
Re-program the power board.
1.1
Þ Connecting
Fasten the supply cable ⇒
diagnostic adapter -1- to the diagnostic
Þ
adapter for high-voltage charging system⇒
Connecting diagnostic adapter -2- and connect
the charging system to the charger (Porsche
Þ Connecting diagnostic
Mobile Charger) ⇒
adapter -3-.
1.2
Connect the supply cable to the power supply.
Connecting diagnostic adapter
1.3
Wait at least 3 minutes before connecting
P90999 - P90999 - PIWIS Tester 4 to the
vehicle communication module (VCI) via the
USB cable and connect the communication
Þ Connecting communication
module ⇒
module (VCI) -1- to the diagnostic adapter for
Þ Connecting
high-voltage charging system⇒
communication module (VCI) -2-.
1.4
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.
Aug 25, 2025
Page 6 of 22
AfterSales
Connecting communication module (VCI)
Service
Technical Information
109/24 ENU WPU1
0
1.5
On the “manual model line selection” screen, select the “External components” model line and
confirm with “Next”.
1.6
Re-program the power board.
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 programming the power board during this campaign, see the table
below:
Required PIWIS Tester software release:
43.500.060 (or higher)
Type of control unit programming:
Carry out control unit programming using the
“Automatic programming” function in the
Universal supply cable control unit.
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 as soon
as programming and coding is complete.
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