NHTSA ID Number: 11032437
Manufacturer Communication Number: No. WSJ0
TSB/Document Date: 2026-05-07
Summary
Technical information for WSJ0 – Update to Software Network VR28.13
Apr 30, 2026
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Service
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Technical Information
2025
location; for the correct fuse
positions, see: ⇒ Fuse positions
Select “Special function” in the
additional menu
Enter campaign code:
HCP4_ERROR_KD2
and follow the Tester instructions
•
•
•
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AfterSales
Please note! HCP4 is
therefore programmed, but
not coded – do not perform
an ignition change!
After successful
programming of the control
unit in the integration
test, re-start using the
‘Campaign’ function •F5“
(if not available, start the
‘Repair’ function with
•F8“)
After this has been
performed successfully,
continue with work step 4
Service
Technical Information
2025
AfterSales
ENU
WSJ0
9
Apr 30, 2026
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HCP4 body electronics
main control unit (J519)
- front-end electronics
B1303F1
Rear lid proximity sensor
(J938), not taught
•
•
Charging communication 2 (J1246)
U19B200
HCP4 body electronics
main control unit (J519)
- front-end electronics
U206200.
Drive and chassis main
control unit HCP1
(J1312)
C147596
P1DBD00
Only for vehicles with
the following equipment:
Lane Change Assist
(M-No. 7Y8):
Motor drive flap power
supply 2 (VX87),
received error value
•
Intelligent ParkAssist
High, function restriction
•
•
•
Disconnect and
reconnect the plug at
the rear disconnection
point for the proximity
sensor
Then read out and delete
the fault memory again
Move the charge port
doors by hand twice
Then read out and delete
the fault memory again
Implement bus idle for
15 min
Then read out and delete
the fault memory again
For C147596 – oil pump
control internal fault
For P1DBD00 – rear axle
oil pump, engine speed
deviation
•
Fault:
Lane Change Assist
(M-No. 7Y8) not
functioning after
programming
Reinitialize Lane Change
Assist.
•
•
•
•
•
Implement bus idle for
15 minutes.
Then read out and delete
the fault memory again
Implement bus idle for
10 minutes.
Switch on ignition.
Fold out and fold in side
mirrors.
Carry out a test drive at
over 60 km/h and check
Lane Change Assist.
If Lane Change Assist is
faulty or not working, repeat
the process.
Apr 30, 2026
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AfterSales
Service
Technical Information
2025
ENU
WSJ0
9
Valid fault codes after the incremented software network VR28.13 SQ4
Control unit
Fault code
Description
Remedy:
Brake electronics (J104)
C13F7F1
Bedding-in function,
active
•
Valid fault memory
entry after vehicle
handover
Front camera (R242)
B200FF2
Implausible signal
•
After the test drive:
Fault memory entry
passive
Front camera (R242)
U12EF00
Front camera for driver
assistance systems,
implausible signal
•
After the test drive:
Fault memory entry
passive
Front camera (R242)
U147C00
External communication
(J949), implausible
signal
•
After the test drive:
Fault memory entry
passive
Front camera (R242)
U198C00
Road graph, received
fault value
•
After the test drive:
Fault memory entry
passive
Drive and chassis main
control unit HCP1
(J1312)
U045D00
Driver assistance main
control unit HCP2
(J1274), ETHERNET
data bus driver
assistance, implausible
signal
•
After the test drive:
Fault memory entry
passive
Driver assistance main
control unit HCP2
(J1274)
B200FF2
Road graph, received
fault value
•
After the test drive:
Fault memory entry
passive
AfterSales
Apr 30, 2026
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Checklist
Checklist:
Work step:
Scope:
The checklist only refers to campaign WSJ0. A different checklist from
another campaign must not be used.
1. Battery charger set to charging mode and charging process on
charger activated?
All
2. Ignition switched off and on again?
All
3. VCI and Porsche
Tester 4 connected to one other (with cable or Wi-Fi
with good network quality)?
All
4. Has the user logged into PPN on the Porsche Tester?
All
5. Seat heating and seat ventilation not active?
All
6. Original remote control (hand-held transmitter) in emergency start
tray (position noted)?
All
7. Logging in the diagnostic tester started?
All
8. Vehicle Analysis Log (Pre-VAL) created?
All
9. Only for new vehicles: Vehicle handover performed in part as
described in section “Update on software network VR28.13 SQ4” in
order to deactivate transport protection?
New vehicles
10. In the control unit overview, •F3“ pressed to start the integration
test and then •F5“pressed to select the ‘Campaign’ function?
All
11. Update Owner's Manual in PCM
Scope 3 and
scope 4
12. Bus idle performed for 10 minutes?
All
13. Vehicle’s readiness for driving checked?
All
14. Fault memory read out and erased?
All
15. Rear lid taught?
All
16. Only for new vehicles: Vehicle handover completed?
New vehicles
17. Adding service interval?
All
18. Vehicle analysis log (first Post-VAL) created?
All
19. Plausibility check of the battery capacity performed?
All
20. Vehicle analysis log (second Post-VAL) created?
All
21. All four doors checked for correct locking?
22. Campaign entered in the Warranty and Maintenance logbook?
Apr 30, 2026
Page 22 of 23
AfterSales
All
Completed:
Service
Technical Information
2025
ENU
23. During the test drive:
23.1 GPS reconnected?
23.2 Tire settings checked and adjusted if necessary?
All
24. Customer informed that the original customer setting for the rear lid
opening height has been reset and must be restored (service advisor)?
All
25. Were abnormalities detected during the plausibility check of the
battery capacity, and was the calculation of the range reset to the initial
values? Information is provided through the guided procedure with the
Porsche Tester.
Inform the customer about FAQs (Service Advisor)!
Scope 2 and
Scope 4
26. Does the vehicle have the Sport Chrono package (M-number 8LH or
8LU), and is the vehicle also operated by a secondary user?
Inform the customer about FAQs (Service Advisor)!
All
WSJ0
9
VIN:
Porsche Center number:
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.
© 2026 Porsche Cars North America, Inc.
AfterSales
Apr 30, 2026
Page 23 of 23
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TSB/Document ID: No. WSJ0
Replacement Service Bulletin Number:
MFR Communication Date: 2026-04-30
MFR Internal Campaign ID/Software Version: WSJ0
Communication Type: Service Campaign
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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