No. 11-25 Service Bulletin/Repair Instructions

Þ Right side wall line routing for Sport Turismo -2-, pin

– Tailgate connection point ⇒

brown cable connector into chamber 15.

– Y piece, output to tail light on right. Pin blue cable connector in chamber 3. Cable

Þ Right side wall line routing for Sport Turismo

loom for rear wall connection point ⇒

-3-.

Þ Right side wall line routing for Sport

– Wire harness for rear wall connection point ⇒

Turismo -4-.
Line routing for right side wall and tailgate for Sport Turismo

Þ Line routing for right side wall and tailgate for Sport

– Tailgate connection point ⇒

Turismo -1-, pin cable connector (RoW: brown, NAR: green) in chamber 15

Þ Line routing for right side wall and tailgate for Sport Turismo -2-,

– Exit for tailgate ⇒

guide cable through grommet and connect.

Þ Line routing for right side wall and tailgate for Sport Turismo -3-, pull

– Tailgate entry ⇒

cable out of grommet and lay it as shown.

Þ Line routing for right side wall and tailgate for Sport

– Line routing for tailgate tail light⇒

Turismo -4-, pin cable connector (right RoW: brown, NAR: green, left RoW: blue, NAR:

grey) in chamber 3
Tequipment
Jan 23, 2026

Page 7 of 12
9
Taycan (Y1A)

9438
ENU
13.

14.

7
8
Installation and Conversion Instructions
11/25
Line routing for rear wall and left side wall Sport Turismo

Þ Line routing for rear wall and left side wall Sport Turismo

– Rear wall connection point ⇒

-1-. Pin blue cable connector on both sides in chamber 6

Þ Line routing for rear wall and left side wall Sport

– Cable routing for left tail light ⇒

Turismo -2-, pin cable connector (RoW: brown, NAR: green) in chamber 3
Subsequent work: The following work steps relate to the Sport Turismo

7.1
Install the new rear light ⇒ Workshop Manual 'Removing and installing rear light'.
7.2
Install the new rear light in the rear lid ⇒ Workshop Manual 'Removing and installing rear light in

rear lid'.
7.3
Install the rear lid trim panel ⇒ Workshop Manual 'Removing and installing rear lid trim panel'.
7.4
Install the C-pillar trim panel ⇒ Workshop Manual 'Removing and installing luggage

compartment storage area cover (side)'.
7.5
Install the center luggage compartment storage area cover. ⇒ Workshop Manual 'Removing and

installing trim panel for luggage compartment storage area cover (centre)'.
7.6
Coding (see paragraph “Maintain activated tail light in vehicle data”).
Coding / programming E-Sound Generator J1PA
NOTICE

Voltage drop

•
Risk of irreparable damage to control unit
•
Risk of damage to control unit
•
Fault entries in control unit
•
Coding in the control unit is aborted
Jan 23, 2026

Page 8 of 12
Tequipment
Installation and Conversion Instructions
Taycan (Y1A)

11 / 25 ENU
•
Malfunctions in control unit, even during programming/coding
Þ

⇒
Switch off the ignition and remove ignition key before disconnecting the control unit.
Þ

⇒
Make sure that the power supply is not interrupted during programming/coding.
Þ

⇒
Connect a battery charger with a current rating of at least 90 A to the vehicle battery.

8.1
9438
9
Preparatory work – Coding

NOTICE
Control unit programming will be aborted if the Wi-Fi connection is unstable.

•
An unstable Wi-Fi connection can disrupt communication between the PIWIS Tester and the

vehicle communication module (VCI). This could lead to control unit programming being aborted.
Þ

⇒
For control unit programming, always connect the PIWIS Tester to the vehicle communication

module (VCI) via the USB cable.

8.1.1
Connect PIWIS Tester to the vehicle and switch it on.
8.1.2
Switch on ignition AND hazard warning lights on the vehicle.

Information

The PIWIS Tester instructions take precedence; the description may be different for

later Tester releases.

The procedure described here has been structured in general terms. Different text or

additional information may appear on the PIWIS Tester.
8.1.3
Select the “Diagnostics” menu item on the PIWIS Tester.
8.1.4
If PIWIS Tester is connected correctly, a connection to the vehicle will be established:

The “Taycan” series is recognized and an overview of the control unit is created.
8.1.5
Press •F12“ to go to the control unit search screen.
8.1.6
•F8“ for additional menu. Question: “Should an FAP be created?” If “Yes”, press

•F12“ to confirm.
8.1.7
After the FAP has been created, a message may appear that there are still open

service actions for the connected vehicle. You can do this with •F12“. This is

followed by the back documentation of the vehicle and the vehicle network test.
Information

The function is ONLY available when the Tester is online!

8.2
Enter the new vehicle equipment in the vehicle data using “PIWIS Online”.
Tequipment
Jan 23, 2026

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Installation and Conversion Instructions
11/25

8.2.1
Select the “Maintain vehicle data with PIWIS-ONLINE” function in the “Additional

menu” menu item.

A message appears informing you that the “Actual” (vehicle) data and “Required”

(PIWIS Online) data will be compared.

Press •F12“ to continue.
8.2.2
Confirm the message “The vehicle data was compared with PIWIS Online. Significant

differences were found” with •F12“.
8.2.3
Look for the “SBBR lights” option in the “Family” column.

Select the “8VL” option in the “Value” column in the drop-down menu. Press •F12“

to continue.
8.2.4
A table containing the coding value and the columns “new value” and “old value” is

displayed in the overview. Press •F8“ to continue.
8.2.5
Data is then written / saved. The following messages appear one after the other:

•

•

•

•
Transferring vehicle data to PIWIS Online.

Writing and transferring vehicle data to the vehicle.

Vehicle order was written successfully.

A check was performed in order to check whether control units have to be coded

as a result of the changes that were made.
8.2.6
Confirm the table containing a list of control units that must be coded by pressing

•F12“.
8.2.7
Individual data records will be loaded, depending on the number of control units to be

coded.

Wait until messages “Creating backup documentation.” Please wait...” and “Coding

was completed successfully.” are displayed. Press •F12“ to continue.

Repeat the process for other control units if necessary.
8.2.8
Wait for the “Adaptation of the control units is complete.” message and check the

coding status of the control units in the displayed table.

Continue by pressing •F12“ to return to the control unit overview.
8.3
8.4
Jan 23, 2026

Page 10 of 12
Program the SBBR lights control unit.

8.3.1
Select the SBBR lights control unit in the overview. Press •F12“ to continue.
8.3.2
Select Coding/programming.
8.3.3
Automatic programming must now be selected. Press •F12“ to continue.
8.3.4
Tester displays the message: Code successfully performed.
Enable functions. To enable functions, select the additional menu Enable functions and continue

with •F12“. Test the function after successfully enabling it.
Tequipment
Installation and Conversion Instructions

8.5
8.6
Taycan (Y1A)

11 / 25 ENU
9438
9
Remove the PIWIS tester from the vehicle.

8.5.1
Lock the vehicle.
8.5.2
Establish bus idle for at least 10 minutes.
8.5.3
Re-connect the PIWIS Tester after bus idle.
Read out the fault memory of all systems, work through any existing faults and erase the fault

memory. ⇒ Workshop Manual '0335IN Diagnostics maintenance: Diagnostic system and maintenance inter...'
NOTICE

Check that the vehicle network is correct before returning the vehicle to the customer.

•
If there is a deviation in the vehicle network, it is not permissible to hand the vehicle over to the customer.

Porsche AG performs spot checks for network deviations via the backend systems. If a deviation is found,

Porsche AG reserves the right to invoice the corresponding repair costs to the Porsche Center.
Þ

⇒
Check the vehicle for open campaigns in the PCSS.
Þ

⇒
Perform programming on control units that do not have the correct software version. Use the integration

test (F3) function to determine the correct software
Þ

⇒
Check the part numbers of control units that do not correspond to the correct hardware version

(component) against the Electronic Parts Catalogue (PET) and the repairs history on a previous parts

exchange.
Þ

⇒
Check for an unauthorized change to the vehicle order. The vehicle order may only be changed if instructed

by Porsche AG (PRMS tickets, Repair Manuals, Technical Information).
Þ

⇒
Contact technical support (PRMS) if you need support or in case of errors.

9
94 31 24 40:
Subsequent work: The following work steps relate to the sedan and Sport Turismo

9.1
Finish with vehicle electrical system battery charger ⇒ Workshop Manual '0335IN Charging

12-volt lithium-ion vehicle electrical system battery'.
9.2
Remove the vehicle from the lifting platform ⇒ Workshop Manual '0335IN Lifting vehicle'.
–LED tail light with dark-tinted light panel (8VL) retrofitted–

Includes:

Expose (inner) rear lid and luggage compartment.

Install tail lights.

Route and connect control lines (LIN bus).

Code / program the new vehicle equipment.

Function test
Tequipment
Labor time: 531 TU
Jan 23, 2026

Page 11 of 12
9
Taycan (Y1A)

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94 31 24 40:
ENU
11/25
Installation and Conversion Instructions
–LED tail light with dark-tinted light panel (8VL) retrofitted–

Includes:

Code / program the new vehicle equipment.

Function test
Labor time: 210 TU
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.
Jan 23, 2026

Page 12 of 12
Tequipment

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