No. 24-23

Service
Symptom-based workshop manual
24/23
ENU
3718
3
Power Transmission Symptom - Manual Upshifting from First to Second Gear not Possible:
Re-Programming PDK Control Unit (SY 24/23)
Vehicle Type:
911 Turbo (992) / Turbo S (992)
Model Year:
As of 2020 up to 2022
Equipment:
8-speed Porsche Double-Clutch transmission (PDC) M No. G1G
Concerns:
Porsche Doppelkupplung (PDK)
Symptom:
Customers complain that shifting from first to second gear via the shift paddle on the steering wheel
in manual shift mode (M mode) is not effected, or only after the accelerator pedal is released and the
shift paddle is activated again. The behavior occurs particularly when driving off with low load and early
upshifting. In automatic shifting mode (operating mode D), shifting occurs normally.
Cause:
Due to the previous PDC control unit software design, manual shifting from first to second gear may be
prevented after the vehicle is driven off if shifting is attempted before the PDC control unit has switched
internally from “Drive-off” mode to “Driving” mode due to low load.
This occurs when the vehicle is mainly operated in manual shifting mode. This behavior may potentially
affect vehicles manufactured before the implementation date of the modified PDC software specified
below.
Date of
Introduction:
Implementation date for modified PDC software
Remedial
Action:
Vehicle type
PDC software part
number (new)
Software version (new)
Use from
911 Turbo (992)
992927110AA
0580
Week 36/2022 (North
America, Brazil)
Week 48/2021
(worldwide)
911 Turbo S (992)
992927109AB
0580
Week 36/2022 (North
America, Brazil)
Week 48/2021
(worldwide)
In the event of a customer complaint, re-program the PDC control unit using the PIWIS Tester with PIWIS
Tester software version 41.700.020 (or higher) installed.
Remedial action available for the following vehicles:
AfterSales
Mar 30, 2023
Page 1 of 4
3
Service
3718
ENU
Symptom-based workshop manual
24/23
Vehicle type
PDC software part
number (previous)
Software version
(previous)
Use from
911 Turbo (992)
992927110R
0540
Week 48/2021
(worldwide)
911 Turbo S (992)
992927109R
0540
Week 48/2021
(worldwide)
Information
An update solution for vehicles manufactured before week 48/2021 which do not have the abovementioned software versions is currently being developed (availability expected mid-2023).
Please inform customers with a vehicle for which the required software update is not yet available in
the event of a corresponding complaint about this issue. Instruct them either to operate the vehicle in
automatic shifting mode (operating mode D) or only switch to manual shifting mode after second gear
has been engaged in automatic shifting mode until the software update is available.
Required tools
Tool:
•
•
Battery charger, e.g.: VAS 5908 - Battery Charger, 90 A
9900 - PIWIS Tester 3/4 with PIWIS Tester software version 41.700.020 (or higher) installed
Preparatory work
NOTICE
Fault entry in the fault memory or control unit programming aborted, as the case may be, due to
under-voltage.
•
Increased current draw during diagnostics or control unit programming can cause a drop in voltage,
which can result in one or more fault entries and the abnormal termination of the programming process.

Before starting work, connect a suitable battery charger with a current rating of at least 90 A to the
jump-start terminals.
NOTICE
Control unit programming will be aborted if the Wi-Fi connection is unstable.
•
An unstable Wi-Fi connection can interrupt communication between the PIWIS Tester III and the vehicle
communication module (VCI). As a result, programming may be aborted.

During control unit programming, always connect the PIWIS Tester to the vehicle communication module
(VCI) via the USB cable.
NOTICE
Control unit programming will be aborted if the driver's key is not recognized
Mar 30, 2023
Page 2 of 4
AfterSales
Service
Symptom-based workshop manual
24/23
ENU
3718
3
•
If the driver's key is not recognized in the vehicle, programming cannot be started or will be interrupted.

Place the driver's key with the back facing down in front of the lock opening for the center console cover to
guarantee a permanent radio link between the vehicle and driver's key.
Work Procedure: 1
Carry out general preliminary work for control unit programming as described in  Workshop
Manual '9X00IN Basic instructions and procedure for control unit programming - “Preliminary Work”
section'.
Re-programming PDK control unit
Work
Procedure:
1
The basic work procedure for programming a control unit is described in the Workshop Manual 
Workshop Manual '9X00IN Basic instructions and procedure for control unit programming using the
PIWIS Tester - section on “Programming”'.
Specific information on control unit programming in the context of this Technical Information:
Required PIWIS Tester software version:
41.700.020 (or higher)
Type of control unit programming:
Control unit programming using the ‘Automatic
programming’ function of the PDK control unit.
‘PDK’ control unit – ‘Coding/programming’ menu
– ‘Automatic programming’ function.
Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.
During programming, the Porsche Double-Clutch
transmission (PDK) is re-programmed and then
automaticallyre-coded.
Programming sequence:
Do not interrupt programming and coding.
Once the control units have been programmed and
coded, you will be prompted to switch the ignition off
and then back on again after a certain waiting time.
Backup documentation of the new software versions
is then performed.
Programming time (approx.):
Programming takes up to 15 minutes, depending
on equipment.
AfterSales
Mar 30, 2023
Page 3 of 4
3
Service
3718
ENU
24/23
Symptom-based workshop manual
Data set for the digital engine electronics (DME) programmed as part of this
programming:
Software version: 0580
Software part number 911 Turbo (992):
992927110AA
Procedure in the event of error messages
appearing during the programming
sequence:
Software part number 911 Turbo S (992):
992927109AB
 Workshop Manual '9X00IN Basic instructions and
procedure for control unit programming using the
PIWIS Tester - section on “Troubleshooting”'.
Procedure in the event of a termination in
the control unit programming:
Repeat control unit programming by restarting
programming.
Concluding work
Work Procedure: 1
Carry out general reworking for control unit programming as described in  Workshop Manual
'9X00IN Basic instructions and work procedure for control unit programming using the PIWIS Tester “Reworking” section'.
Invoicing
For documentation and warranty invoicing, enter the labor position and PCSS encryption specified below
in the warranty claim:
APOS
Labor operation
37302599
Programming transmission electronics control
unit
I No.
PCSS encryption:
Location (FES5)
37180
Rocker switch
Damage type (SA4)
1127
does not switch
References:
 Workshop Manual '9X00IN Basic instructions and procedure for control unit programming using the
PIWIS Tester'
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.
© 2023 Porsche Cars North America, Inc.
Mar 30, 2023
Page 4 of 4
AfterSales