No. 195-21

Service
Technical Information
195/21 ENU
9025
9
Rear Belt Warning Implausible/No Phonebook Scroll Function Available: Check and
Update Instrument Cluster as Necessary (195/21)
Model Line:
Macan (95B)
Model Year:
As of 2019 up to 2021
Concerns:
Instrument cluster
Information:
New software is available for the instrument cluster. This software will correct the following topics:
•
Implausible rear belt warning
After a passenger has got out of the rear seat, a seat belt warning message appears for the corresponding rear seat after the trip has continued, although this seat is no longer occupied in the meantime.
•
Phonebook scroll function not available
The list of phonebook entries is not available in the multi-function display on the instrument cluster. As a
result, contacts cannot be displayed and selected.
Action required: In the event of a customer complaint, check the software version of the instrument cluster and
re-program the instrument cluster with the appropriate programming code.
Overview of the software versions affected
Software version (old version)
Software version (new version)
1830
0833
0835
0838
0845
0839
0841
0843
Information
•
The total time required for control unit programming is approx. 100 minutes.
Required tools
Tool:
•
9900 - PIWIS Tester 3 with PIWIS Tester software version 40.700.020 (or higher) installed
•
Battery charger with a current rating of at least 90 A, e.g. VAS 5908 battery charger 90A.
AfterSales
Dec 23, 2021
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9
Service
Technical Information
ENU 195/21
9025
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 getting started, connect a suitable battery charger with a current rating of at least 90 A to the
jump-start terminals.
NOTICE
Control unit programming will be aborted if the WLAN connection is unstable.
•
An unstable WiFi connection can interrupt communication between the PIWIS Tester and the vehicle
communication module (VCI). As a result, programming may be aborted.

During control unit programming, always connect the PIWIS Tester to the vehicle communication module
(VCI) via the USB cable.
NOTICE
Control unit programming will be aborted if the driver's key is not recognized
•
If the driver's 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 driver’s key. To do this, replace the control unit in the ignition lock
with the original driver’s key if necessary.
Work Procedure: 1
2
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Perform preliminary work for programming the relevant control units according to  Workshop
Manual '9X00IN Basic instructions and procedure for control unit programming - section on
"Preliminary work"' .
Read out the software version.
2.1
Connect the PIWIS Tester to the vehicle and switch on the PIWIS Tester.
2.2
Switch on ignition.
2.3
Start diagnostics.
2.4
Select "Instrument cluster" control unit.
2.5
Select the "Extended identifications" tab.
2.6
Read out and note the software version.
AfterSales
Service
Technical Information
195/21 ENU
9025
9
Re-programming instrument cluster
Information
Depending on the previous software version, the new software version may result in changes to the visual
and audible seat belt warning with regard to the switch-on threshold, display logic and duration as well as
the possibility of acknowledging the warning.
Therefore, please inform your customers after the implementation of the measure that the seat belt
warning may behave differently than before.
Work Procedure: 1
The basic procedure for control unit programming is described in the Workshop Manual 
Workshop Manual '9X00IN Basic instructions and procedure for control unit programming - section
on "Programming".' .
Specific information on control unit programming in the context of this Technical Information:
Required PIWIS Tester software version:
40.700.020 (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.
Software version: 1830
Programming code: P2K2K
Software version: 0833
Programming code: P8H8J
Software version: 0835, 0838, 0839
Programming code: D2X7E
Software version: 0841
Programming code: T7G4Z
Software version: 0843
Programming code: X8P3G
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 control unit is re-programmed and then automatically re-coded.
Do not interrupt programming.
Programming time (approx.):
100 minutes
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Dec 23, 2021
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Service
Technical Information
ENU 195/21
9025
Software version programmed during this
campaign:
0845
Procedure in the event of error messages
appearing during the programming
sequence:
 Workshop Manual '9X00IN Basic instructions and
procedure for control unit programming - section on
"Fault finding"'.
Procedure in the event of abnormal termination of control unit programming:
Repeat control unit programming by restarting
programming.
Following control unit programming, the software
version can be read out of the instrument cluster
control unit in the  'Extended identifications' menu
using the PIWIS Tester.
Concluding work
Work Procedure: 1
General subsequent work for control unit programming as described in  Workshop Manual
'9X00IN Basic instructions and procedure for control unit programming using the PIWIS Tester section on "Subsequent work"' .
Invoicing
For documentation and billing in the event of a guarantee, state the work items required depending on the
scope of work required and the specified PCSS encryption in the guarantee application:
APOS
Labor operation
90252501
Programming instrument cluster
I No.
PCSS encryption:
Location (FES5)
90250
Instrument cluster
Damage type (SA4)
1614
Function not as specified
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.
Dec 23, 2021
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AfterSales