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WMD1

9

WMD1- Performing PCM Software Update (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.

Model Year:

As of 2017 up to 2018

Model Line:

Cayenne (92A)
Macan (95B)

Concerns:

Porsche Communication Management (PCM) 4.0

Information:

Due to a change in the interface for providing the satellite map data for Porsche Communication Management (PCM), the satellite map view will no longer be available in Navigation on
the affected vehicles.

Action required: Perform PCM software update to restore the satellite map view.
Affected
Vehicles:

Only vehicles assigned to the campaign (see also PCSS Vehicle Information).

Performing PCM software update
Information
If the vehicle is affected by the Workshop Campaign WG47 and it has not yet been carried out on the
vehicle, this must be performed before the software update WMD1.
Technical Information 'WG4700 WG47 Workshop campaign - Performing navigation map update and
software update for PCM and instrument cluster'
Work
Procedure:

Perform PCM software update.
For procedure see:
Workshop Manual '915225 Programming central computer data update'

Required tools
Please note that the SD memory cards for the PCM software update specified below are usually already
available at the Porsche dealer. If the required SD memory card is nevertheless not available yet, it can

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be ordered in a small number (max. 2 per required variant per Porsche dealer). The SD memory cards
must remain at the Porsche dealer as part of the workshop equipment and must not be handed over to
the customer or left in the vehicle.
Parts Info:

Part No.

Designation
– Region

Vehicle
assignment

Software

9P1919360AK

 SD memory card
– Europe
– RoW

M-no. ER1/ER2

1470

 SD memory card
– NAR

M-no. ER3/ER4

1472

 SD memory card
– Japan

M-no. ER5

1304

or
9P1919360AL
or
9P1919360AN

Warranty processing
Scope 1:

Performing PCM software update
Valid for Cayenne (92A) / Macan (95B)

•

Working time:
Performing PCM 4.0 software update
Includes:
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Reading out and erasing fault memory

Labor time: 50 TU

Please note:
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 at the Porsche dealer.
Required tools:
9P1919360AK

SD memory card
– Europe
– RoW

or
9P1919360AL

SD memory card
– NAR

or

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SD memory card
– Japan

 Damage Code WMD1 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. Part numbers listed in these bulletins are for reference only. 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.

© 2021 Porsche Cars North America, Inc.

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