1

Read out and erase all fault memories.
Information
If the fault memories of individual control units cannot be erased, switch the ignition off and then on
again and erase the fault memories of these control units 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 located and corrected.
This work cannot be invoiced under the workshop campaign number.

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.

5

Enter the workshop campaign in the Warranty and Maintenance booklet.

Attachment "B"
Claim Submission - Workshop Campaign WC34
Warranty claims should be submitted via WWS/PQIS.

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WC34

9

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 WWS by the dealer
administrator.
Scope:

Working time:
Labor time: 30 TU

Re-programming front-end electronics and rear-end electronics
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Reading out and erasing fault memories
 Damage code WC34 066 000 1

Troubleshooting
Procedure:

Error message after entering
programming number

Possible causes

Remedial action

Specified campaign does not
exist

•

PIWIS Tester software is
not up-to-date

•

Update PIWIS Tester
software to the software
version specified in the
Technical Information
(or a higher software
version). Then enter
the programming
number again and start
programming.

•

Wrong vehicle type
selected

•

Close the diagnostic
application. Select the
correct vehicle type and
restart the diagnostic
application. Then enter
the programming
number again and start
programming.

•

A programming number
does not have to be
entered in order to carry
out the campaign.

•

Carry out the campaign as
described in the Technical
Information.

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No suitable programming rules
found.
Cause: Part number of
the control unit is not in the
programming rules.

•

Campaign must not be
carried out on the vehicle
or campaign was already
carried out.

•

Check vehicle assignment
to the campaign in PIWIS >
Vehicle Information.

•

Replacement control unit
with up-to-date software
version was installed

•

•

Software version of the
installed control unit is
already up-to-date

Check software version of
the control unit in the 
“Extended identification”
menu.

•

Software version of the
control unit is a version that
is not intended for carrying
out the campaign.

Current software version:
– Front-end electronics
2220
– Rear-end electronics
2240

No suitable programming rules
found.
Cause: Current vehicle
equipment is not shown in
the programming rules. Please
check vehicle order and change
it if necessary.

•

Campaign must not be
carried out on the vehicle.

•

Check vehicle assignment
to the campaign in PIWIS >
Vehicle Information.

•

Vehicle order is wrong.

•

Check vehicle order and
correct it if necessary
(PIWIS Tester > Additional
menu >> Maintenance of
vehicle data).

Vehicle data could not be read

•

Ignition not switched on

•

Switch on ignition and close
and restart the diagnostic
application. Then enter
the programming
number again and start
programming.

Procedure after programming is aborted
Information
If programming is aborted (the message “Programming was not completed successfully” is displayed
on the PIWIS Tester screen), always proceed in accordance with the procedure described below.
Procedure:

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1

If the message “Programming was not completed successfully” is displayed, first press
•F11“ to cancel the programming procedure and then go back to the start page of the
Additional menu.

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Technical Information
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Actuate the central locking button in the centre console to “wake up” the gateway control unit and
re-establish communication between the gateway control unit and the front-end electronics control
unit.
Information
There may be no response or reaction from the vehicle after pressing the central locking
button. Nevertheless, internal communication between the gateway control unit and the front-end
electronics control unit was re-established so that programming can now be carried out again.

3

Select the  'Campaign' function and restart control unit programming by entering the
programming number again.

•

If programming is completed successfully following the restart (message “Campaign was
carried out successfully”), carry out the work described under  Technical Information 'WC3400
Subsequent work'.

•

If programming is not completed successfully even after restarting (message “Programming was
not completed successfully” is displayed again), Steps 1 to 3 must be repeated until programming
is completed successfully. It may be necessary to restart programming up to three times in individual cases.

•

If programming does not start again after entering the programming number or is not
completed successfully even after restarting programming at least three times (message
“Programming was not completed successfully”), carry out the following work:

4

Press •F11“ to cancel programming.

5

Switch off ignition.

6

Pull fuses for the front-end and rear-end electronics control units out of the slot in order to reset the
control units. Then re-insert the fuses.
•
•

Fuses for front-end electronics control unit: Fuse box in left footwell – row B: fuses No. 1 (40 A),
No. 6 (10 A) and row C: fuses No. 2 (40 A), No. 7 (30 A)
Fuses for rear-end electronics control unit: Fuse box in left footwell – row B: fuses No. 2 (15 A),
No. 3 (15 A), No. 4 (15 A) and row C: fuse No. 5 (30 A)

Information
After re-inserting the fuses, there is a possibility that the ignition cannot be switched on and the
instrument cluster will remain off.
However, the driver's key in the ignition lock must still be turned to “Ignition on” position. Communication between the vehicle and PIWIS Tester can then be re-established despite the fact that the
ignition and instrument cluster appear to be switched off.
7

Switch on ignition and restore communication between the vehicle and the PIWIS Tester.

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Actuate the central locking button in the centre console to “wake up” the gateway control unit and
re-establish communication between the gateway control unit and the front-end electronics control
unit.
Information
There may be no response or reaction from the vehicle after pressing the central locking
button. Nevertheless, internal communication between the gateway control unit and the front-end
electronics control unit was re-established so that programming can now be carried out again.

9

Call up the Additional menu on the PIWIS Tester and restart control unit programming again using the
 'Campaign' function by entering the programming number.

•

If programming is completed successfully after resetting the control unit (message “Campaign was
carried out successfully”), carry out the work described under  Technical Information 'WC3400
Subsequent work'.

•

If programming is not completed successfully even after resetting the control unit (message
“Programming was not completed successfully”)  continue with Step 10.

10 Press •F11“ to cancel programming.
11 Switch off ignition.
12 Switch off and disconnect the battery charger.
13 Disconnect the negative terminal of the vehicle battery and wait approx. 1 minute. Then re-connect
the negative terminal of the vehicle battery.
Information
After re-connecting the battery, there is a possibility that the ignition cannot be switched on and the
instrument cluster will remain off.
However, the driver's key in the ignition lock must still be turned to “Ignition on” position. Communication between the vehicle and PIWIS Tester can then be re-established despite the fact that the
ignition and instrument cluster appear to be switched off.
14 Switch on ignition and restore communication between the vehicle and the PIWIS Tester.
15 Actuate the central locking button in the centre console to “wake up” the gateway control unit and
re-establish communication between the gateway control unit and the front-end electronics control
unit.
Information
There may be no response or reaction from the vehicle after pressing the central locking
button. Nevertheless, internal communication between the gateway control unit and the front-end
electronics control unit was re-established so that programming can now be carried out again.

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16 Call up the Additional menu on the PIWIS Tester and restart control unit programming again using the
 'Campaign' function by entering the programming number.
•

If programming is completed successfully after disconnecting and connecting the vehicle battery
(message “Campaign was carried out successfully”), carry out the work required after disconnecting
the battery  Workshop Manual '2X00IN Work instructions after disconnecting the battery' and the
work described under  Technical Information 'WC3400 Subsequent work'.

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®, Panamera®, Speedster®, Spyder®, 918 Spyder®, Tiptronic®, VarioCam®, PCM®, PDK®, 911®, 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 use only by authorized Porsche dealers
and authorized users 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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