Bulletin #: 2601

Advanced Technical Information

Part ID: 9431

9

G2.II Panamera - Exclusive Design Taillight Faulty
Vehicles Affected
Models

Model Year

Model Type

VIN Range

Vehicle-Specific Equipment

Panamera

As of 2021 up to 2024

971

All

8VQ - Exclusive Design Taillight

Revision History
Revision

Release Date

Changes

0

February 18, 2026

Original document

Condition
The customer states the taillights exhibit limited function in part (Figure 1) or in full (Figure 2), accompanied by an
instrument cluster message pertaining to , “Tail light faulty”.

Figure 1

Figure 2

The warning in the instrument cluster may be intermittent and may occur when the taillights appear fully functional.
Vehicles exhibiting this condition typically display a message, “tail light faulty” as shown in Figure 3 or Figure 4. In
cases where there are functionality issues in multiple tail lights, a “several rear lights faulty” display message may
also be present (Figure 5).

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Bulletin #: 2601

Advanced Technical Information

Figure 3

Part ID: 9431

Figure 4

9

Figure 5

In some cases, the following fault codes are present in the rear-end electronics (BCM2):
“B16D513 - Center left tail light open circuit”
“B16D713 - Center right tail light open circuit”
“B16D5F2 - Center left tail light marker light defective”
“B16D7F2 - Center right tail light marker light defective”

Technical Background
The condition described above can occur if the vehicle is exposed to excessive ambient heat. For example,
vehicles that are operated in warmer climates may be more susceptible to this condition.

Service Information
If the condition described above is found in vehicles equipped with the Exclusive Design Taillight (I-Number 8VQ),
it will be necessary to retrofit the standard taillight, as the design and shape correspond to the Exclusive Design
Taillight.
Proceed as follows:

1.
Please provide customer with a copy of the letter located on the following PPN page:
https://ppn.porsche.com/portal/docs/DOC-593224

2.
Follow instructions on page 3 to retrofit Standard Taillights in place of the Exclusive Design
Taillights

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Bulletin #: 2601

Advanced Technical Information

Part ID: 9431

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Required parts:
Part Number

Quantity

Description

971.945.095.AF

1

Taillight, driver side

971.945.096.AF

1

Taillight, passenger side

971.945.093.AM

1

Taillight, center

4H0.973.713.F

2

6-pin connector

4H0.973.713.E

1

6-pin connector

4H0.973.713

1

6-pin connector

000.979.025.EC

1

Repair wire 0.5 mm²

000.979.034.EC

1

Repair wire 0.5 mm²

000.979.035.EC

1

Repair wire 0.5 mm²

000.979.981.B

1

Repair wire spool

Suggested tools for connectors and pins:
Tool

Description

VAS1978/16

Release tool flat plug-in system 2 latching
tongue

VAS1978/17

Release tool secondary locking

Please refer to the steps below to complete the retrofit:
1. Preliminary work (Figure 6 & 7)
Reference relevant workshop manual documentation for removal of the following components:
• Taillights (center and left/right)
• Rear lid trim panel and rear apron/bumper cover
• Luggage compartment trim panels (center, side, and lock carrier)
• Rear lock carrier cover
• Rear luggage compartment side trim panel
• C-pillar (upper) and D-pillar trim panels
• Subwoofer (BOSE® system) and tire sealant/compressor (if equipped)
• Retaining bar for electrical system battery

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Bulletin #: 2601

Advanced Technical Information

Part ID: 9431

Figure 6. Rear End Prepared for Rework

9

Figure 7. Overview of Overlays

2. Routing and connecting electric wire harnesses
2.1 Route overlay for passenger-side taillight
2.1.1 Route through taillight area, passenger side
(Figure 8)
1. Carefully loosen the grommet on the wire harness and
slide it towards the taillight connector.
2. Carefully feed overlay wire with single-wire seal
through the grommet and guide it to the taillight
connector.
3. Remove pin 3 (LIN) and insulate pin using insulating
tape.
Figure 8. Passenger Taillight Area
4. Replace the connector housing (A) with a new connector
housing B (4H0.973.713.F), keeping all pins in their original location apart from the removed
LIN line. Keep A for a future step.
5. Insert overlay wire into pin location 6.
6. Move rubber plug from pin 6 to pin 3.
7. Install grommet in the body. Check that the grommet is seated correctly in body, as seen in
Figure 8.

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Bulletin #: 2601

Advanced Technical Information

Part ID: 9431

2.1.2 Route overlay wire from passenger taillight to
Rear BCM (Figure 9)
1. Remove brown connector from Rear BCM
and open it.
2. Insert overlay wire with pin contact into pin
A1 at brown connector.
3. Close brown connector and install in Rear
BCM.
2.2 Route overlay for driver-side taillight
2.2.1 Repeat steps in 2.1.1 on the driver’s side
1. Connector C is removed (keep for future step).
2. Connector D is installed (4H0.973.713.F).

Figure 9. Overlay Routing on Passenger Side

2.2.2. Route to rear crossover
wconnection point area (Figure 10)
1. Route overlay along the wire harness to
the rear crossover connection point.
2. Insert overlay into pin 11 at crossover.
Note: The remainder of this circuit already
exists on the mating connector. No further
action is needed to complete circuit.
Figure 10. Rear Crossover Overlay

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Part ID: 9431

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2.3 Route overlay for center taillight
2.3.1 Route to Taillight area in rear lid (Figures 11)

Figure 11. Center Taillight Area
1. Per Figure 11, swap the current connector on the center taillight (E) with C from the driver-side
outer taillight (4H0.973.713)
2. Swap the current connector on the center taillight (F) with A from the passenger-side outer
taillight (4H0.973.713.E)
3. Disconnect wire harness for center taillight on the rear
lid and loosen grommet from the body.
4. Carefully guide overlay wire through the driver side
grommet in the rear lid.
5. Insert overlay wire into pin 6 on connector C
(4H0.973.713).
6. Carefully reinstall grommet in rear lid.
2.3.2 Route along rear lid harness (Figure 12)
1. Route overlay wire along the existing harness wiring
sleeve.
2. Tape/secure overlay to prevent chafing or damage.

Figure 12. Rear Lid Harness Area

2.3.3 Route wiring through sleeve on the Driver Side
(Figure 13)
1. Locate and loosen sleeve on driver-side tailgate hinge from
the body/rear lid.
2. Carefully guide overlay wire through the sleeve using suitable tool.
3. Reinstall sleeve.

Figure 13. Wiring Sleeve Between Body
and Rear Lid

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Advanced Technical Information

Part ID: 9431

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2.3.4 Rear lid connection point area, driver-side c-pillar (Figure 14)
1. Route overlay wire with pin contact along the wire harness to the
connection point at the C-pillar.
2. Remove the black, 17-pin connector socket from the holder.
3. Insert overlay wire with pin contact into pin 13 of the black connector.
4. Continue overlay on the mating connector – Pin 13 of the black
connector.
5. Lock male and female connector socket and reinstall.
Figure 14. Driver-side
C-Pillar Connector
2.3.5 Driver-side trunk area routing (Figure 15)
1. Guide overlay along existing body harness towards
the rear of the vehicle.
2. Continue overlay along the harness, following the
routing along the trunks edge to the rear crossover
connection point.

2.3.6 Rear crossover connection point (Figure 16 & 17)

Figure 15. Driver-side Trunk
1. At the rear crossover connection point (brown conArea Routing
nector), insert overlay into pin 13 of the male side.
2. Continue overlay by inserting overlay wire into pin 13 of the female connector (Figure 17) then
run along the existing harness to BCM2.
3. Route overlay and insert into pin B6 (black connector) at BCM2.

Figure 16. Goes to Rear

Figure 17. Rear Crossover Connector

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Advanced Technical Information

Part ID: 9431

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3. Concluding work
3.1 Confirm routed overlay is secured to existing
lines/harness with tie-wraps and tessa tape.
Note: Secure without any tension and be cautious of
routing to prevent chafing
3.3 Coding and Programming
1. Create a vehicle analysis log (VAL).
2. Modify Maintenance of Vehicle Data using
additional
menu.
3. Look for the “SBBR lights” option in the “Family” column.
4. Select the relevant option “8VG - SBBR LIGHTS IN LED
TECHNOLOGY” from the drop-down menu in the “Value”
column.
5. Verify that the changes were made.
6. Go to coding and programming for rear-end electronics
(BCM2).
7. Select and perform automatic programming.
8. Verify function of ALL lights on the vehicle.
9. Verify system is fault free.
10. Create a vehicle analysis log (VAL).

Warranty
For documentation and warranty invoicing, enter the working position and PCSS encryption specified
below in the warranty claim. Additional labor operations may be claimed only as needed.
APOS

Labor operation

94312440

2 rear lights install (Main work)

94314999*

Work related to routing the additional wire

I No.

*For 94314999 A fixed amount of 68TU may be claimed
PCSS encryption:
Location (FES5)

9431

Rear light

Symptom

1611

No function

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Bulletin #: 2601

Advanced Technical Information

Part ID: 9431

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Search Items
Taillight, G2, Panamera, exclusive, rear end electronics, BCM2, overlay

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.

6000020525
© 2026 Porsche Cars North America, Inc.

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