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WG39 - Updating Porsche Communication Management (PCM) and Re-programming
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 the Equipment Information EQ1401 for a list of
suitable battery chargers/power supplies.
Model Year:
2017
Model line:
718 (982)
911 (991)
Subject:
•
•
Issue:
In the course of annual model improvements, various functionalities of the Porsche Communication
Management (PCM) system have been enhanced, optimisations have been implemented and the general
performance of the system has been further improved at the same time.
Porsche Communication Management (PCM) 4.0
Instrument cluster
These function enhancements and optimisations must be implemented retrospectively even for vehicles
manufactured before the model improvement measures were introduced.
To this end, the PCM software will be updated on the affected vehicles using an SD card.
Due to the changes to the PCM, the instrument cluster must also be re-programmed using the PIWIS
Tester in order to ensure consistency between the displays in PCM and the instrument cluster.
A description of the topics and optimisations that are enhanced or implemented with the software update
for PCM and the instrument cluster can be found in the following Technical Information:  Technical Information '911000 PCM 4.0 integrated system: Complaints and repair instructions (01/16)'.
Overview of the most important PCM model improvement measures:
Action
Required:
•
•
•
•
Connect two phones to the PCM in parallel via Bluetooth®
Optimisations to MyScreen (Drag & Drop) and new widgets
Simplification of the device manager for connecting to other devices
Actuation of SIri using Push-to-Talk (PTK) switch on the steering column stalk
•
•
Update PCM software using an SD card
Re-program instrument cluster using the PIWIS Tester
Information
Overview of programming times for the various modules:
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•
PCM update
approx. 45 minutes
•
Re-programming instrument cluster
approx. 20 minutes
Information
When the instrument cluster is re-coded, the individual settings implemented in the instrument cluster
by the customer will be lost and are reset to the default values of the country version that applies to
the vehicle.
After carrying out the campaign, therefore, please inform your customers that personal settings
they have implemented in the instrument cluster will have to be set again and provide them with any help
and support they need for setting the relevant options.
This affects the following settings in the Vehicle menu, for example:
Affected
Vehicles:
•
Lowering of door mirror on passenger's side during parking manoeuvres
•
Locking settings
•
Light & Visibility settings
•
Units (kilometres/miles, Celsius/Fahrenheit, ...)
•
Language
Only the vehicles assigned to the campaign (see also PIWIS Vehicle Information). This campaign affects
1,281 vehicles in North America.
Required tools
Tools:
•
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.
•
9900 - PIWIS Tester 3 with PIWIS Tester test software version 33.700.000 (or higher) installed
or
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•
9818 - PIWIS Tester II with PIWIS Tester test software version 17.700.000 (or higher) installed.
•
SD memory cards for PCM update
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Information
The PCM update is performed using an SD memory card for each specific region.
The SD memory cards for the PCM update listed below must be re-used as part of the workshop
equipment and remain in the Porsche Dealer. The SD memory cards must not therefore be left in the
vehicle or handed over to the customer.
The SD memory cards required for carrying out this campaign are identical to the SD memory cards
required for carrying out the PCM update as part of campaign WG47.
Given this, the maximum number of SD memory cards that may be ordered for each Porsche Dealer
depends on how many vehicles will be worked on by the respective Porsche Dealer as part of
workshop campaigns WG39 and WG47.
The following specifications apply here:
Number of vehicles on which work is to be
performed by the Porsche Centre as part of
campaigns WG39 and WG47
Maximum order quantity of SD memory cards
for the PCM update
Overview of SD memory cards for PCM update
Part No.
Designation
– Region
Vehicle assignment
9P1 906 961 A
SD memory card for PCM update
– North America
– Mexico
I-no. ER3/ER4
Information
To make it easy to determine which SD card is required for performing the PCM update on each vehicle,
the vehicles are assigned fixed campaign scopes.
The campaign scope assigned to the respective vehicle can be displayed by entering the vehicle identification number (VIN) in the 'Vehicle information' menu in PIWIS.
Based on the assigned campaign scope, the SD card required for the PCM update can be determined
using the overview of campaign scopes provided under  Technical Information 'WG3900 Warranty
processing'.
Note: Each Porsche Dealer will receive 3 of the required SD memory cards for the PCM update and 3
SD memory cards for the navigation map update (WG47). If you require additional need for SD memory
cards, please create a PTEC/PAV for ordering instructions.
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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.
Procedure:
1
Connect battery charger.
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 connection.
2
Switch on the ignition using the original driver's
key. For vehicles with “Porsche Entry & Drive”,
replace the control panel in the ignition lock with the
original driver’s key, if necessary.
External power connection
Performing software update for Porsche Communication Management (PCM)
Procedure:
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1
Switch on PCM.
2
Open the flap covering the drives on the PCM.
3
Remove any inserted SD cards from the SD card slots.
To do this, first press on the SD card to release it. Then, pull the SD card out of the card slot.
4
Insert SD card for the PCM update (Part No. 9P1 906 961 x) into the left SD card slot (SD 1) in
such a way that the bevelled edge of the SD card is at the front right.
5
Press the •CAR“ and •MEDIA“ buttons on the PCM for at least 3 seconds at the same time
to go to the Developer menu.
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Select the ‘Software update’ function in the ‘Developer menu (SWDL)’.
7
Select and confirm the installation medium 'SD1'.
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The status messages "Reading version description" and "Loading metadata" then appear.
8
Select and confirm the update scope 'Standard'.
9
Select the option ‘Start update’ in the display of devices in the footer.
10 Confirm the message "Update must not be interrupted" by pressing 'Start update' again.
The PCM is then restarted and the message "Update will continue after restart" appears. The individual components and modules are then updated. The update progress is shown as a percentage
for each module.
The update takes approx. 45 minutes.
The PCM is restarted several times during the update. The PCM screen remains dark for up to 3
minutes.
Information
If the software update is interrupted or if error messages are displayed (e.g. as a result of read
errors), the update must be repeated.
11 When the update is finished, ‘OK’ will appear next to the updated components and modules in the
'Summary of devices' display. Press 'Continue'.
After the PCM update, you are prompted to perform the backup documentation process using
the PIWIS Tester.
12 Connect the PIWIS Tester to the vehicle and switch it on.
13 If necessary, select the relevant vehicle type and start the diagnostic application.
14 Select the PCM control unit in the control unit selection screen ('Overview' menu) and press •F12“
("Next") to confirm your selection.
15 Call up the 'Maintenance/repairs' menu.
Update confirmation
16 Select 'Confirmation Update' in the menu and press •F12“ ("Next") to continue .
17 Read the information that is displayed and press •F12“ ("Next") to confirm.
18 Start the update confirmation process by pressing •F8“ ("Execute"). The backup documentation
process is performed.
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19 When the backup documentation process is complete, all status fields will be ticked.
If the backup documentation process is not completed successfully, the process must be
repeated.
Then press •F12“ (“Next”) to return to the start page of the 'Maintenance/repairs' menu.
20 Remove SD card for the PCM update from the left SD card slot on the PCM.
To do this, first press on the inserted card to release it. Then, pull the SD card out of the card slot.
21 Any SD cards that were removed before starting the PCM update must now be re-inserted into the
SD card slots.
Re-coding Porsche Communication Management (PCM)
Procedure:
1
Call up the 'Codings/programming' menu in the 'PCM' control unit.
2
Select the 'Automatic coding' function and press
•F12“ ("Next") to start coding  Automatic coding.
Automatic coding
3
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.
4
Once coding has been completed successfully, press
•F12“ ("Next") to return to the start page of the
'Codings/programming' menu.
Coding successful
5
Select the 'Overview' menu and press •F11“ ("Back") to return to the control unit selection screen.
6
Perform a function test on the PCM.
Re-programming instrument cluster
Procedure:
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1
Re-program the instrument cluster.
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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"'.
Specific information on control unit programming during this campaign:
Required PIWIS Tester software version:
• PIWIS Tester 3:
33.700.000 (or
higher)
• PIWIS Tester II:
17.700.000 (or
higher)
Type of control unit programming:
Control unit programming using the "Campaign"
function in the Additional menu on the PIWIS
Tester by entering a programming code.
Programming code:
D7E7X
Programming sequence:
Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.
During the programming sequence, the instrument
cluster is re-programmed and then re-codedautomatically.
The display in the instrument cluster is switched off
during programming. "bLF" appears on the digital
speedometer display.
The ignition is still active in the background.
The display in the instrument cluster will be
switched on again automatically as soon as
programming is complete.
Switch the ignition off and then on again only
when prompted to do so by the PIWIS Tester
because otherwise, programming will be interrupted and will then have to be started again.
Time required for programming and coding
(approx.):
20 minutes
Software version programmed during this
campaign:
0786
Procedure in the event of error messages
appearing during the programming
sequence:
 Workshop Manual '9X00IN Basic instructions and
2016© Porsche Cars North America, Inc.
Following control unit programming, the software
version can be read out of the instrument cluster in
the 'Extended identification' menu using the PIWIS
Tester.
procedure for control unit programming using the
PIWIS Tester - section on "Fault finding"'.
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Procedure in the event of abnormal
termination of control unit programming:
Repeat control unit programming by entering the
programming code again.
Procedure in the event of other
malfunctions following control unit
programming (e.g. analogue speedometer
does not work):
•
•
•
Switch off ignition and lock the vehicle.
Wait for at least 5 minutes before unlocking the
vehicle again and switching on the ignition.
Check to see if the problem persists.
Resetting instrument cluster to factory settings
Procedure:
1
Select 'Instrument cluster' in the control unit
selection screen ('Overview' menu) and press
•F12“ ("Next") to confirm your selection  Control
unit selection – Instrument cluster.
2
Once the instrument cluster has been found
and is displayed in the overview, select the
'Codings/adaptations' menu.
Control unit selection – Instrument cluster
3
Select 'Restore factory settings/codes' and press
•F12“ ("Next") to start the process  Resetting
instrument cluster to factory settings.
4
Once the settings have been reset successfully,
press •F12“ ("Next") to continue.
5
Select the 'Overview' menu and press •F11“
("Back") to return to the control unit selection screen.
Resetting instrument cluster
to factory settings
Concluding work
Information
The values for the Tyre Pressure Monitoring (TPM) system may be lost during re-coding of the instrument
cluster.
If the Tyre Pressure Monitoring (TPM) system is reset, the wheel electronics must be re-taught and
adapted to the system.
Preconditions and procedure for teaching the wheel electronics units:
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•
Vehicle is stationary for at least 5 minutes.
•
Select the type of tyres fitted (type and size) in the TPM menu in the instrument cluster. The message
"No monitoring. System is learning from 25 km/h or 15 mph" then appears in the multi-function
display.
•
Drive at a speed of more than 25 km/h (15 mph) - ideally without stopping - until the tyre pressure
values are displayed (learning time: less than 2 minutes).
The system learns the wheel electronics only while driving. Intermediate stops and deviations from the
described teaching procedure can result in a much longer learning time.
Teaching can be performed during the test drive or later while the customer is driving. Please inform your
customer about this if necessary.
Procedure:
1
Read out and erase all fault memories.
1.1
In the control unit selection screen
('Overview' menu), press •F7“ to call up the
'Additional menu' ( Control unit selection).
1.2
Select the function “Read all fault
memories and erase if required” and
press •F12“ ("Next") to confirm your
selection  Erasing fault memories.
Control unit selection
The fault memories of the control units are
read out.
1.3
Once you have read out the fault memories,
check the fault memory entries.
Information
If control units are found to have faults that
are not caused by control unit programming,
these must first be found and corrected.
This work cannot be invoiced under the
workshop campaign number.
Erasing fault memories
1.4
Press •F8“ to delete fault memory entries.
1.5
Press •F12“ (“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.
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Information
If the fault memories of individual control units cannot be erased, proceed as follows:
•
Switch off the 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.
2
Switch off the ignition.
3
Disconnect the PIWIS Tester from the vehicle.
4
Switch off and disconnect the battery charger.
5
On vehicles with Porsche Entry & Drive, replace the original driver's key in the ignition lock with the
control unit again if necessary.
6
Enter the campaign in the Warranty and Maintenance booklet.
Warranty processing
Scope 1:
•
Vehicles with I-no. ER3 or ER4 (North America, Mexico)
Working time:
Performing software update for PCM and instrument cluster
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Performing update confirmation
Re-coding PCM
Resetting instrument cluster to factory settings
Performing function test
Reading out and erasing fault memory
Labor time: 56 TU
Required tools:
9P1 906 961 A
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SD memory card
– PCM update
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The number of SD cards provided for each Porsche Dealer depends on how many vehicles will have to
be worked on by each Porsche Dealer as part of this campaign and campaign WG47 (see section 
Technical Information 'WG3900 Required tools').
The SD memory cards must only be invoiced once for the first vehicle during warranty processing.
Only the working time must be invoiced in the warranty claim for all other vehicles on which work is
carried out as part of this campaign in the Porsche Dealer.
Please note that SD cards invoiced as part of this campaign must not be invoiced again for workshop
campaign WG47.
Invoicing:  Damage Code WG39 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
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.
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