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Technical Information

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WG14 - Re-programming DME 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:

2016

Vehicle type:

Cayenne Turbo S (92A)

Subject:

DME control unit

Issue:

There is a possibility that an excessively high drive torque will be transferred to the rear axle
when the Performance Start function is used on the affected vehicles.
If the Performance Start function is used frequently, overloading of the drive shafts cannot be ruled out.
This can damage the drive shafts on the rear axle.

Remedial
action:

Re-program the DME control unit using the PIWIS Tester with test software version 16.800.030 (or
higher) installed.

NOTICE
Use of a PIWIS Tester test 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 test software for control unit
programming.

Information
In addition to the DME control unit, the Tiptronic control unit is also re-programmed automatically. It
takes approx. 8 minutes in total to program the control units.
Affected
Vehicles:

Only the vehicles assigned to the campaign (see also PIWIS Vehicle information).

Tools:

•

9818 - PIWIS Tester II with PIWIS Tester test software version 16.800.030 (or higher) installed.

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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 II and the vehicle
communication module (VCI). As a result, control unit programming may be aborted.



During control unit programming, always connect PIWIS Tester II 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.

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
The procedure described here is based on the PIWIS Tester II software version 16.800.030.
The PIWIS Tester instructions take precedence and in the event of a discrepancy these are the
instructions that must be followed. Deviations may occur with later software versions, for example.
Procedure:

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Re-program DME 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 test 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 test software for control unit
programming.
Required PIWIS Tester software version:

16.800.030 (or higher)

Type of control unit programming:

Control unit programming using the 'Automatic
programming' function for the DME control unit.
DME 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 - as well as the Tiptronic control unit
- will be re-programmed and then re-codedautomatically.

Programming sequence:

Do not interrupt programming and coding.

2

Programming time (approx):

8 minutes

Procedure in the event of error messages
appearing during the programming
sequence:

 Workshop Manual '9X00IN Basic instructions and

Procedure in the event of abnormal
termination of control unit programming:

Repeat control unit programming by restarting
programming.

procedure for control unit programming using the
PIWIS Tester - section on "Fault finding"'.

If previously disconnected, re-connect the electric plug connection for the fan blower.

Reading out and erasing fault memory
Procedure:

1

In the control unit selection screen ( 'Overview' menu), press •F7“ 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

Perform throttle valve adaptation
Procedure:

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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.

2

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.

Adaptation preconditions
5

Select the  'Throttle valve adaptation'
function so that the corresponding text line turns
blue and press •F8“ (‘Start’) to start throttle
valve adaptation  Throttle valve adaptation.

Throttle valve adaptation
6

Follow the instructions on thePIWIS Tester while throttle valve adaptation is being performed.
Once throttle valve adaptation is complete, a tick will appear in the “Value” field in the PIWIS Tester
display.
If throttle valve adaptation is not completed successfully, the adaptation must be repeated.

7

Press •F8“ ('Stop') to end throttle valve adaptation.

8

Press •F11“ ('Back') to return to the start page of the  'Adaptations' menu.

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Performing cooling-air flap adaptation
Procedure:

1

Select the  'Radiator shutter adaptation'
function so that the corresponding text line
turns blue and then press •F8“ ('Start') to start
radiator shutter adaptation  Radiator shutter
adaptation.

Radiator shutter adaptation
2

Follow the instructions on the PIWIS Tester while
radiator shutter adaptation is being performed
 PIWIS instructions.
Once adaptation is complete, a tick will appear in
the "Value" field on the PIWIS Tester display.
If radiator shutter adaptation is not completed
successfully, the adaptation must be repeated.

PIWIS instructions

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End radiator shutter adaptation by pressing •F8“ ('Stop').

4

Press •F11“ ('Back') to return to the start page of the  'Adaptations' menu.

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Performing kickdown threshold adaptation
Procedure:

1

Select the  'Kickdown threshold' function so
that the corresponding text line turns blue and
press •F8“ ('Start') to start kickdown threshold
adaptation  Kickdown threshold adaptation.

Kickdown threshold adaptation
2

Read and follow the instructions on the PIWIS
Tester in order to perform kickdown threshold
adaptation  PIWIS instructions.
Once kickdown threshold adaptation is complete,
a tick will appear in the "Value" field on the PIWIS
Tester display.
If kickdown threshold adaptation is not completed
successfully, the adaptation must be repeated.
PIWIS instructions

3

End kickdown threshold adaptation by pressing •F8“ ('Stop').

4

Press •F11“ ('Back') to return to the start page of the  'Maintenance/repairs' menu.

5

Select the  'Overview' menu and press •F11“
('Back') to return to the control unit selection
screen  Control unit selection.

Control unit selection

Concluding work
Procedure:

1

Switch off the ignition.

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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.

5

Enter the campaign in the Warranty and Maintenance booklet.

Warranty Invoicing
Information
The specified working time was determined specifically for carrying out this campaign and includes all
required preliminary and subsequent work.
The working time may differ from the working times published in the Labor Operation List in PIWIS.

Scope:

Working time:
Re-programming DME control unit
Includes:
Disconnecting and connecting electric plug connection for
fan blower
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Re-programming Tiptronic control unit
Reading out and erasing fault memories
Performing throttle valve adaptation
Performing cooling-air flap adaptation
Performing kickdown threshold adaptation

Labor time: 49 TU

Warranty Invoicing:  Damage Code WG14 66 000, Repair Code 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®,
Cayman®, Macan®, Panamera®, Speedster®, Spyder®, 918 Spyder®, Tiptronic®, VarioCam®, PCM®, PDK®, 911®, RS®, 4S®, FOUR, UNCOMPROMISED®, and the model numbers and the
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Porsche Cars North America, Inc. believes the specifications to be correct at the time of printing. Specifications, performance standards, standard equipment, options, and other elements shown are
subject to change without notice. Some options may be unavailable when a car is built. Some vehicles may be shown with non-U.S. equipment. The information contained herein is for internal authorized
Porsche dealer use only and cannot be copied or distributed. Porsche recommends seat belt usage and observance of traffic laws at all times.
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