TI-10-13

SB-10052179-8575
Service
Technical Information
10/13 ENU
WD08
4
WD08 - Re-programming Electric Parking Brake Control Unit (Workshop Campaign)
Important:
CRITICAL WARNING — THIS CAMPAIGN INCLUDES STEPS WHERE SEVERAL CONTROL UNITS IN
THE VEHICLE WILL BE PROGRAMMED WITH THE PIWIS TESTER. IT IS CRITICAL THAT THE VEHICLE
VOLTAGE BE BETWEEN 13.5 VOLTS AND 14.5 VOLTS DURING THIS PROGRAMMING. OTHERWISE, THE
PROGRAMMING COULD FAIL RESULTING IN DAMAGED CONTROL UNITS. CONTROL UNITS DAMAGED
BY INADEQUATE VOLTAGE WILL NOT BE COVERED UNDER WARRANTY. THE TECHNICIAN MUST VERIFY
THE ACTUAL VEHICLE VOLTAGE IN THE INSTRUMENT CLUSTER OR IN THE PIWIS TESTER BEFORE
STARTING THE CAMPAIGN. IT IS ALSO ADVISABLE TO MONITOR THE VEHICLE VOLTAGE DURING THE
PROGRAMMING VIA THE INSTRUMENT CLUSTER. PLEASE REFER TO EQUIPMENT INFORMATION
EQ-1105 FOR A LIST OF SUITABLE BATTERY CHARGERS/POWER SUPPLIES WHICH SHOULD BE USED
TO MAINTAIN VEHICLE VOLTAGE.
Model Year:
As of 2012 up to 2013
Vehicle Type:
911 Carrera (991)/911 Carrera S (991)
911 Carrera 4 (991)/911 Carrera 4S (991)
Equipment:
7-speed manual transmission (I-no. 487)
Concerns:
Electric parking brake control unit
Information:
This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles.
Implausible fault entries can be stored for the electric parking brake control unit on the
affected vehicles because the monitoring function is too sensitive.
This can cause the yellow warning message “Fault Electric parking brake” to appear on the multi-function
display although there is no system fault present.
The warning message disappears when the ignition is switched off and on again.
Action
Required:
Re-program electric parking brake control unit.
Information
It takes about 3 minutes to program the electric parking brake control unit.
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 2,440 vehicles in North America.
Tools:
9818 - PIWIS Tester II with software version 11.600 (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.
Work
Procedure:
See Attachment “A”.
Claim
Submission:
See Attachment “B”.
Attachment "A": Work Procedure
Preliminary 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 suitable battery charger or power supply, suitable for
AGM type batteries, recommended current rating of 70A fixed voltage 13.5V to 14.5V to the vehicle.
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:
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NOTE: VEHICLE VOLTAGE MUST REMAIN BETWEEN 13.5 AND 14.5 VOLTS DURING THE ENTIRE WORK
PROCEDURE.
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Connect a 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.
First connect the positive cable of the charger
to the positive terminal of the battery and then
connect the negative cable of the charger to the
ground point for jump-lead starting  External
power supply.
External power supply
2
Switch on the ignition using the original driver's key. On vehicles with "Porsche Entry & Drive", do
this by replacing the control panel in the ignition lock with the original driver's key if necessary.
3
9818 - PIWIS Tester II with software version 11.600 (or higher) installed 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.
Re-programming and re-coding electric parking brake control unit
Information
The procedure described here is based on the PIWIS Tester II software version 11.600.
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.
Procedure:
NOTE: VEHICLE VOLTAGE MUST REMAIN BETWEEN 13.5 AND 14.5 VOLTS DURING THE ENTIRE WORK
PROCEDURE.
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On the PIWIS Tester start screen, call up the  'Diagnostics' menu and select vehicle type 
'911'  '991'.
The diagnostic application is then started and the control unit selection screen is populated.
2
In the control unit selection screen ( 'Overview'
menu), press •F7“ to call up the  'Additional
menu' ( Control unit selection).
Control unit selection
3
When the question “Create Vehicle Analysis Log (VAL)?” appears, either press •>>“ to create a
VAL or press •F11“ if you do not want to create a VAL.
4
Press •>>“ to acknowledge the message informing you that campaigns for the vehicle are stored
in the PIWIS information system.
5
Select the  'Campaign' function and press
•>>“ to confirm your selection  Additional
menu – Campaign.
You are then prompted to enter a programming
code.
Additional menu – Campaign
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To enter the programming code, click in the
relevant text box so that the cursor starts to flash
 Programming code input field.
Programming code input field
7
Enter the programming code T6H7Z and press •Enter“ to confirm.
The text box turns blue.
Press •>>“ to start the guided programming sequence.
Information
Read and follow the information and instructions on the PIWIS Tester during the guided
programming sequence.
The electric parking brake control unit is re-programmed and is then automatically re-coded.
Do not interrupt programming and coding.
If an error message is displayed after starting programming (e.g. “Campaign does not exist”, “No
suitable programming rules found” or “Vehicle data could not be read”, etc.), follow the appropriate
instructions provided under  Technical Information 'WD0800 Troubleshooting'.
If programming is interrupted (e.g. due to a voltage drop or if communication is aborted, etc.) or if
programming could not be carried out successfully (error message “Programming unsuccessful”),
programming must be repeated by entering the programming code T6H7Z again (Additional menu >
Campaign >> Enter campaign number).
It is not possible to program the control unit manually.
Once the control unit has been programmed and coded, the PIWIS Tester will prompt you to switch the
ignition off and then back on again after a certain waiting time.
Once programming is completed successfully (message “Campaign was carried out successfully”), carry
out the steps described below.
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8
Once control unit programming and coding has been completed successfully, press •>>“ to
return to the start page of the Additional menu.
9
Press •<<“ to return to the control unit selection
screen  Control unit selection.
Control unit selection
Carrying out routine function for parking brake control unit
Procedure:
NOTE: VEHICLE VOLTAGE MUST REMAIN BETWEEN 13.5 AND 14.5 VOLTS DURING THE ENTIRE WORK
PROCEDURE.
1
In the control unit selection screen ( 'Overview'
menu), select the “Parking brake” control unit
and call up the  'Drive links/checks' menu
 Control unit selection - Parking brake.
Control unit selection - Parking brake
2
Select the menu item  'T6H7Z' in the  'Drive
links/checks' menu and press •>>“ to confirm
 T6H7Z routine.
T6H7Z routine
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Press •F8“ to start the 'T6H7Z' routine function.
Once the routine function is carried out
successfully, the message “Function has
been executed” appears. The status “Request
accepted” appears in the status display  Routine
successful
Routine successful
4
Press •<<“ to return to the start page of the  'Drive links/checks' menu.
Moving to installation position
Procedure:
NOTE: VEHICLE VOLTAGE MUST REMAIN BETWEEN 13.5 AND 14.5 VOLTS DURING THE ENTIRE WORK
PROCEDURE.
1
Select the menu item  'Move to installation
position' in the  'Drive links/checks' menu
and press •>>“ to confirm  Moving to installation position.
Moving to installation position
2
Press •F8“ to start the 'Move to installation position' process.
Once the function has been completed, the message “Function has been executed” appears. “Yes”
appears under "Success" in the status display.
3
Once the process is complete, press •<<“ to return to the start page of the  'Drive
links/checks' menu.
Checking basic parking brake settings
Procedure:
NOTE: VEHICLE VOLTAGE MUST REMAIN BETWEEN 13.5 AND 14.5 VOLTS DURING THE ENTIRE WORK
PROCEDURE.
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1
Switch to the  'Maintenance/repairs' menu.
2
Select the menu item  'Check parking brake
basic setting' and press •>>“ to confirm
 Checking basic parking brake setting.
Checking basic parking brake setting
3
Read the instructions displayed for the "Check parking brake basic setting" function and press
•>>“ to confirm.
The basic parking brake settings are checked during the test. The parking brake is automatically
tensioned and then released again.
Once the parking brake settings have been checked successfully, the message "Basic parking
brake settings are correct" is displayed.
Information
Once the basic settings have been checked successfully, the electric parking brake can be calibrated
directly (see next step).
There is no need to grind down the brakes – contrary to any other instructions displayed on the PIWIS
Tester – in this case both for vehicles with steel brakes and for vehicles with PCCB.
Information
If the basic parking brake settings are not correct (message: “Brake shoe clearance out of tolerance”),
the parking-brake shoes must be adjusted  Workshop Manual '468316 Setting and calibrating
parking-brake shoes'.
The work required for this cannot be invoiced under the workshop campaign number.
4
After successfully checking and setting the parking brake if necessary, press •>>“ to return to
the start page of the  'Maintenance/repairs' menu.
Calibrating electric parking brake
Procedure:
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NOTE: VEHICLE VOLTAGE MUST REMAIN BETWEEN 13.5 AND 14.5 VOLTS DURING THE ENTIRE WORK
PROCEDURE.
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Select the menu item  'Calibration' in the 
'Maintenance/repairs' menu and press •>>“
to confirm  Electric parking brake calibration.
Read the displayed information and requirements
and press •>>“ to confirm.
Electric parking brake calibration
2
Press •F8“ to start calibrating the electric parking brake.
The message “Calibration running” appears during
the calibration process.
The status “Processing request” appears in the
status display.
Once calibration is carried out successfully,
the message “Calibration has been completed"
appears.
The status “Request complete” appears in the
status display  Calibration successful.
Calibration successful
3
Press •>>“ to return to the start page of the  'Maintenance/repairs' menu.
4
Select the  'Overview' menu to return to the control unit selection screen.
Reading out and erasing fault memories
Procedure:
NOTE: VEHICLE VOLTAGE MUST REMAIN BETWEEN 13.5 AND 14.5 VOLTS DURING THE ENTIRE WORK
PROCEDURE.
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In the control unit selection screen ( 'Overview'
menu), press •F7“ to call up the  'Additional
menu' ( Control unit selection).
Control unit selection
2
Select the function  'Read all fault memories
and erase if required' 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 •>>“ (“Yes”) in response to the question as to whether you really want to delete all fault
memory entries.
The faults stored in the fault memories of the various control units are deleted.
Information
If individual control units (e.g. parking brake, instrument cluster) still contain fault memory entries relating
to the electric parking brake, press the clutch pedal and start the engine briefly and then switch it off
again. Release the clutch pedal. 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 the fault memory entries are still present, proceed as follows:
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•
Switch on ignition.
•
Press the clutch pedal.
•
Apply the electric parking brake.
•
Release the electric parking brake.
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•
Release the clutch pedal.
•
Switch off the ignition and wait approx. 10 seconds before switching it back on again.
•
Re-establish the connection between the PIWIS Tester and the vehicle.
•
Read out the fault memory again and erase it.
4
If the control units are found to have other 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 and press •<<“ to return
to the control unit selection screen  Control unit
selection.
Control unit selection
Subsequent work
Procedure:
NOTE: VEHICLE VOLTAGE MUST REMAIN BETWEEN 13.5 AND 14.5 VOLTS DURING THE ENTIRE WORK
PROCEDURE.
1
Switch off 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 driver's key in the ignition lock with the
control panel again.
5
Enter the workshop campaign in the Warranty and Maintenance booklet.
Attachment "B":
Information
The specified working time was determined specifically for carrying out this campaign and includes the
time required for programming the electric parking brake control unit as well as all necessary preliminary
and subsequent work.
The working time may differ from the working times published in the Labor Operation List in PIWIS.
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Claim Submission - Workshop Campaign WD08
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.
Scope:
Working time:
Labor time: 25 TU
Re-programming electric parking brake control unit
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Performing routine function for electric parking brake
control unit
Moving to installation position
Checking basic parking brake settings
Calibrating electric parking brake
Reading out and erasing fault memories
 Damage code WD08 066 000 1
Troubleshooting
Procedure:
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Error message after entering
campaign 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 campaign
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
campaign number again
and start programming.
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No suitable programming rules
found.
Cause: Part number of
the control unit is not in the
programming rules.
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•
Incorrect programming
code entered or
programming code not
entered correctly.
•
Enter the programming
code specified in the
Technical Information
correctly.
•
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.
•
Software version of the
control unit is a version that
is not intended for carrying
out the campaign.
Read out the Porsche part
number and software version
of the electric parking
brake control unit using the
PIWIS Tester by selecting
'Parking brake' control unit
 'Extended identification'
menu.
•
•
Current Porsche part
number of electric
parking brake control unit:
99161814503
Current software version
of electric parking brake
control unit: 1600
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
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campaign number again
and start programming.
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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and authorized users and cannot be copied or distributed. Porsche recommends seat belt usage and observance of traffic laws at all times.
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