122-C4N9A-09

Service Bulletin Details

Public Details for: 122-C4N9A-09

"the unwarranted error message ""gearbox fault"" can appear sporadically in the instrument cluster on the affected vehicles because the diagnostic function for the hydraulic valves in the pdk transmission is too sensitive. If this happens,


- 2017 -

Models from 2017
2017 PORSCHE 911
Service
Technical Information
08/16
ENU
WG02
3
WG02 - Re-programming PDK Control Unit (Workshop Campaign)
Important:
CRITICAL WARNING - This campaign includes steps where control unit(s) in the vehicle will be
programmed with the PIWIS Tester. The vehicle voltage must be maintained between 13.5 volts and 14.5
volts during this programming. Failure to maintain this voltage could result in damaged control unit(s).
Damage caused by inadequate voltage during programming is not a warrantable defect. The technician
must verify the actual vehicle voltage in the PIWIS Tester before starting the campaign and also document
the actual voltage on the repair order. Please refer to Equipment Information EQ1401 for a list of suitable
battery chargers/power supplies which should be used to maintain vehicle voltage.
Model Year:
2017
Vehicle Type:
911 (991)
Equipment:
Vehicles with PDK transmission (I-no. 250)
Subject:
PDK control unit
Information:
The unwarranted error message "Gearbox fault" can appear sporadically in the instrument
cluster on the affected vehicles because the diagnostic function for the hydraulic valves in the
PDK transmission is too sensitive.
If this happens, the PDK transmission switches to the reduced driving programme and the Check Engine
light in the instrument cluster will be activated.
Remedial
action:
Re-program the PDK control unit using the PIWIS Tester with test software version 16.400.010 (or
higher) installed.
NOTICE
Use of a PIWIS Tester software version that is older than the prescribed version
•
Measure is ineffective

Always use the prescribed version or a higher version of the PIWIS Tester software for control unit
programming.
Information
When the PDK control unit is programmed, the DME control unit is also re-programmed automatically.
It takes approx. 12 minutes in total to program the control units.
Affected
Vehicles:
Only the vehicles assigned to the campaign (see also PIWIS Vehicle information). This campaign affects
13 vehicles in North America.
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Tools:
ENU
•
•
Technical Information
08/16
9818 - PIWIS Tester II with PIWIS Tester test software version 16.400.010 (or higher) installed.
Battery Charger/Power Supply - Suitable for AGM Type batteries, recommended current rating of
70A fixed voltage 13.5V to 14.5V. Refer to Equipment Information EQ-1105.
Preparatory work
NOTICE
Fault entry in the fault memory and control unit programming aborted due to low voltage.
•
Increased current draw during diagnosis 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 control unit programming, connect a battery charger or power supply, suitable for AGM
type batteries, recommended current rating of 70A fixed voltage 13.5V to 14.5V.
NOTICE
Control unit programming will be aborted if the Internet connection is unstable.
•
An unstable Internet connection can interrupt communication between PIWIS Tester and the vehicle
communication module (VCI). As a result, control unit programming may be aborted.

During control unit programming, always connect PIWIS Tester to the vehicle communication module (VCI)
via the USB cable.
NOTICE
Control unit programming will be aborted if the vehicle key is not recognized
•
If the vehicle key is not recognized in vehicles with Porsche Entry & Drive, programming cannot be started
or will be interrupted.

Switch on the ignition using the original vehicle key. To do this, replace the original vehicle key in the
ignition lock with the plastic key fob if it was previously removed at the start of this procedure.
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 using the PIWIS
Tester - section on "Preliminary work"'.
Carrying out control unit programming
Information
When the PDK control unit is programmed, the DME control unit is also re-programmed automatically.
Work Procedure: 1
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Re-program PDK control unit.
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The basic 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"'.
For specific information on control unit programming during this campaign, see table
below.
NOTICE
Use of a PIWIS Tester software version that is older than the prescribed version
•
Measure is ineffective

Always use the prescribed version or a higher version of the PIWIS Tester software for control unit
programming.
Required PIWIS Tester software version:
16.400.010 (or higher)
Type of control unit programming:
Control unit programming using the 'Automatic
programming' function for the PDK control unit.
PDK control unit  'Programming' menu 
'Automatic programming' function.
Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.
During the programming sequence, the DME control
unit is first re-programmed and then re-codedautomatically.
Programming sequence:
The PDK control unit is then re-programmed and
re-codedautomatically.
Do not interrupt programming and coding.
Programming time (approx):
12 minutes
Procedure in the event of abnormal
termination of control unit programming:
Repeat control unit programming by restarting
programming.
Procedure in the event of other error
messages appearing during the
programming sequence:
 Workshop Manual '9X00IN Basic instructions and
procedure for control unit programming using the
PIWIS Tester - section on "Fault finding"'.
Reading out and erasing fault memory
Work Procedure: 1
Press •F7“ in the control unit selection screen ('Overview' menu) to call up the Additional menu.
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Select the function “Read all fault memories and
erase if required” and press •F12“ ('Next') to
confirm your selection  Erasing fault memories.
The fault memories of the control units are read out.
3
Once you have read out the fault memories, erase the
fault memory entries by pressing •F8“.
4
Press •F12“ ('Yes') in response to the question as
to whether you really want to delete all fault memory
entries.
Erasing fault memories
The faults stored in the fault memories of the various control units are deleted.
Information
If there are still fault memory entries in individual control units, start the engine briefly and then
switch it off again. Wait for approx. 10 seconds before switching the ignition on again and
re-establish the connection between the PIWIS Tester and the vehicle. Then read out and erase the
fault memories of the affected control units again separately.
If control units are found to have faults which cannot be erased and are not caused by control unit
programming, these faults must be found and corrected. This work cannot be invoiced under the
workshop campaign number.
5
Once you have erased the fault memories, select
the 'Overview' menu to return to the control unit
selection screen  Control unit selection.
Control unit selection
Performing adaptations
Work Procedure: 1
2
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Select the 'DME' control unit in the control unit selection screen ('Overview' menu) and press •F12“
('Next') to confirm your selection.
Once the DME control unit has been found and is displayed in the overview, select the 'Maintenance/repairs' menu.
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Select menu item 'Adaptations' and confirm your
selection by pressing •F12“ ('Next')  DME - Adaptations.
DME - Adaptations
4
Comply with the displayed preconditions and press
•F12“ ('Next') to confirm  Adaptation preconditions.
5
Perform throttle valve adaptation.
Adaptation preconditions
5.1
Select the 'Throttle valve adaptation'
function so that the text line turns blue
 Throttle valve adaptation.
5.2
Press •F8“ ('Start') to start throttle valve
adaptation.
5.3
Follow the instructions on thePIWIS Tester
while throttle valve adaptation is being
performed.
Throttle valve adaptation
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Once the adaptation is complete, a tick
will appear in the “Status” field for throttle
valve adaptation on the PIWIS Tester display
 Throttle valve adaptation successful.
If throttle valve adaptation is not completed
successfully, adaptation must be repeated.
5.4
6
Press •F8“ ('Stop') to end throttle valve
adaptation.
Perform radiator shutter adaptation.
Throttle valve adaptation successful
NOTICE
Electrically moved components
•
Danger of limbs being trapped or severed
•
Risk of damage to components

Do not reach into the danger area.

Do not move components or tools into the danger area.

Keep third parties away from the danger area.
6.1
Select the 'Radiator shutter 1 adaptation'
function so that the text line turns blue
 Radiator shutter 1 adaptation.
6.2
Press •F8“ ('Start') to start radiator shutter
1 adaptation.
6.3
Follow the instructions on the PIWIS Tester
while radiator shutter 1 adaptation is being
performed.
Radiator shutter 1 adaptation
Once the adaptation is complete, a tick
will appear in the “Status” field for radiator
shutter 1 adaptation on the PIWIS Tester
display  Radiator shutter 1 adaptation
successful.
If radiator shutter 1 adaptation is not
completed successfully, the adaptation must
be repeated.
6.4
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Press •F8“ ('Stop') to end radiator shutter 1
adaptation.
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Radiator shutter 1 adaptation successful
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6.5
Select the 'Radiator shutter 2 adaptation'
function so that the text line turns blue
 Radiator shutter 2 adaptation.
6.6
Press •F8“ ('Start') to start radiator shutter
2 adaptation.
6.7
Follow the instructions on the PIWIS Tester
while radiator shutter 2 adaptation is being
performed.
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Radiator shutter 2 adaptation
Once the adaptation is complete, a tick
will appear in the “Status” field for radiator
shutter 2 adaptation on the PIWIS Tester
display  Radiator shutter 2 adaptation
successful.
If radiator shutter 2 adaptation is not
completed successfully, the adaptation must
be repeated.
6.8
Press •F8“ ('Stop') to end radiator shutter 2
adaptation.
Radiator shutter 2 adaptation successful
7
Press •F11“ ('Back') to return to the start page of the 'Maintenance/repairs' menu.
8
Select the 'Overview' menu and press •F11“ ('Back') to return to the control unit selection screen.
Concluding Work
Work Procedure: 1
Switch off the ignition.
2
Disconnect the PIWIS Tester from the vehicle.
3
Switch off and disconnect the battery charger.
4
On vehicles with Porsche Entry & Drive, replace the original vehicle key in the ignition lock with the
control panel again.
Invoicing
Information
The specified working time was determined specifically for carrying out this campaign and may differ
from the working times published in the Labour Operation List in PIWIS.
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Scope:
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Working time:
Labor time: 57 TU
Re-programming PDK control unit
Includes:
Re-programming DME control unit
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Performing adaptations
Reading out and erasing fault memories
 Damage Code WG02 066 000 1
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. If a particular condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your authorized Porsche Dealer for the latest information
about whether a particular technical bulletin applies to your vehicle. Part numbers listed in these bulletins are for reference only. Always check with your authorized Porsche dealer to verify the current and
correct part numbers. 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.
© Porsche Cars North America, Inc.
Dealership
Distribution
Routing
Service Manager
_______
Shop Foreman
_______
Service Technician
________
_______
_______
_______
Asst. Manager
_______
Warranty Admin.
_______
Service Technician
________
_______
_______
_______
Dr. Ing. h.c. F. Porsche AG is the owner of numerous trademarks, both registered and unregistered, including without limitation the Porsche Crest®, Porsche®, Boxster®, Carrera®, Cayenne®,
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distinctive shapes of the Porsche automobiles such as, the federally registered 911 and Boxster automobiles. The third party trademarks contained herein are the properties of their respective owners.
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