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WF51 - Re-coding Instrument Cluster (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:

2015

Vehicle Type:

Cayenne S E-Hybrid (92A)

Concerns:

Instrument cluster

Information:

The instrument cluster on the affected vehicles may have been coded using an incorrect
coding rule.
As a result, there is a possibility that the range on remaining fuel will be calculated incorrectly and an
incorrect range will be shown on the display when driving extensively at full load.
The fuel-level indicator always shows the correct level.

Action
Required:

Re-code instrument cluster.

Affected
Vehicles:

The VIN(s) can be checked by using PIWIS Vehicle Information link to verify if the campaign affects the
vehicle. This campaign is scope specific to the VIN! Failure to verify in PIWIS may result in an improper
repair. This campaign affects 160 vehicles in North America.

Tools:

•
•

Claim
Submission:

See Attachment “A”.

9818 - PIWIS Tester II with PIWIS Tester test software version 15.700 (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.

Preliminary work
NOTICE
Coding will be aborted in the event of low voltage.

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•

Increased current draw during diagnosis can cause a drop in voltage, which can result in one or more fault
entries and the abnormal termination of the coding process.



Before getting started, connect a suitable battery charger with a current rating of at least 70 A to the
jump-start terminals in the engine compartment.
NOTICE

Coding 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, coding may be aborted.



During control unit programming, always connect PIWIS Tester II to the vehicle communication module
(VCI) via the USB cable.
1

Connect 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.

2

9818 - PIWIS Tester II must be connected to the vehicle communication module (VCI) via the USB
cable. Then connect the communication module to the vehicle and switch on the PIWIS Tester.

3

On the PIWIS Tester start screen, call up the  'Diagnostics' menu and select the vehicle type 
'Cayenne'  '92A'.
The diagnostic application is then started and the control unit selection screen is populated.

Re-coding instrument cluster
Information
The procedure described here is based on the PIWIS Tester II software version 15.700.
The PIWIS Tester instructions take precedence and in the event of a discrepancy, these are the
instructions that must be followed.
A discrepancy may arise with later software versions for example.

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Technical Information

Work Procedure: 1

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Select  'Instrument cluster' in the control unit
selection screen ( 'Overview' menu) and press
•>>“ to confirm your selection  Control unit
selection – Instrument cluster.

2

When the question “Create Vehicle Analysis Log
(VAL)?” appears, either press •F12“ to create a VAL
or press •F11“ if you do not want to create a VAL.

3

Press •>>“ to acknowledge the message informing
you that campaigns for the vehicle are stored in the
PIWIS information system.

Control unit selection – Instrument cluster

4

Once the instrument cluster has been found and is displayed in the overview, select the 
'Codings/adaptations' menu.

5

Select the  'Automatic coding' function and
press •>>“ to start coding  Instrument cluster Automatic coding.

Instrument cluster - Automatic coding
6

When coding is complete, the message “Coding has
been completed successfully” is displayed and a tick
appears in the 'Status' box  Coding successful.
If coding is not completed successfully (error
message "Coding was not completed successfully"),
coding must be repeated.

7

8

Once coding has been completed successfully,
press •>>“ to return to the start page of the 
'Codings/adaptations' menu.

Coding successful

Select the  'Overview' menu and press •“ to confirm
 Erasing fault memories.
The fault memories of the control units are read
out.

Erasing fault memories
3

Once you have read out the fault memories, delete the fault memory entries by pressing •F8“.

4

Press •F12“ (“Yes”) in response to the question as to whether you really want to erase all fault
memory entries.
The faults stored in the fault memories of the various control units are deleted.

Information
If the fault memories of individual control units (e.g. fault memories of the control units DME, Adaptive
Cruise Control (ACC), etc.) cannot be erased, proceed as follows:
•

Switch off ignition.

•

Disconnect the PIWIS Tester diagnostic connector from the diagnostic socket.

•

Lock the vehicle using the driver’s key.

•

Wait approx. 1 minute before unlocking the vehicle again.

•

Plug the PIWIS Tester diagnostic connector into the diagnostic socket again and restore communication with the vehicle.

•

Read out the fault memories of these control units again and erase the fault memories separately.

If control units are found to have faults that 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.

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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

Calibrating electric machine
Information
The electric machine must generally be calibrated after the fault memories of the OBD-relevant control
units or the fault memories of all control units have been erased.
The rotor position (phase angle) and rotor temperature are stored during calibration of the electric
machine.
Work Procedure: 1

Press and hold the brake pedal.

2

Turn the ignition key in the ignition lock to position 2 (terminal 50 – engine start) and hold it at this
position for about 2 to 3 seconds.
Calibration of the electric machine is clearly audible. Calibration is complete once the calibration
noise can no longer be heard.

3

Release the ignition key and move it to position 1 (ignition on).

Subsequent work
Work Procedure: 1

Switch off ignition.

2

Disconnect the PIWIS Tester from the vehicle.

3

Switch off and disconnect the battery charger.

4

Enter the workshop campaign in the Warranty and Maintenance booklet.

Information
The specified working time was determined specifically for carrying out this campaign and may differ
from the working times published in the Labor Operation List in PIWIS.

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Attachment "A": Claim Submission - Workshop Campaign WF51
Warranty claims should be submitted via WWS/PQIS.
Open campaigns may be checked by using either the PIWIS Vehicle Information system or through PQIS
Job Creation.
Labor, parts, and sublet will be automatically inserted when Technician is selected in WWS/PQIS. If
necessary, the required part numbers will need to be manually entered into warranty system by the dealer
administrator.
Working time:
Labor time: 19 TU

Re-coding instrument cluster
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Reading out and erasing fault memories
Calibrating electric machine
 Damage code WF51 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®,
Cayman®, Macan®, Panamera®, Speedster®, Spyder®, 918 Spyder®, Tiptronic®, VarioCam®, PCM®, PDK®, 911®, RS®, 4S®, FOUR, UNCOMPROMISED®, and the model numbers and the
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.
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.
Printed in the USA

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