122-P4L5H-09

4
Service
Technical Information
90/18
4434
Symptom In Vehicle Interior - Warning Message "TPM Fault Service Necessary" Appears In
The Instrument Cluster: Re-programming control unit for Tire Pressure Monitoring (TPM)
(SY 90/18)
Vehicle Type:
ENU
Panamera (971)
Cayenne (9YA)
Model Year:
As of 2017
Equipment:
Tire Pressure Monitoring (TPM) 433 MHz (I-no. 7K3)
Subject:
Control unit for Tire Pressure Monitoring (TPM)
Symptom:
The warning message "TPM fault Service necessary" may appear in the instrument cluster.
 TPM warning message
TPM warning message
Cause:
The warning message can appear unnecessarily in the instrument cluster due to defective control unit
software.
Remedial
Action:
In the event of a customer complaint and if the software version in the control unit for Tire
Pressure Monitoring (TPM) is "0630", re-program and code the control unit for Tire Pressure
Monitoring (TPM) as described below.
Tools:
•
•
9900 - PIWIS Tester 3 with software version 37.600.010 (or higher) installed
Battery charger with a current rating of at least 90 A. We recommend VAS 5908 - battery
charger 90A, for example
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Service
4434
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Work
Procedure:
Technical Information
90/18
NOTICE
Voltage drop
•
Risk of irreparable damage to control unit
•
Risk of damage to control unit
•
Fault entries in the control unit
•
Coding in the control unit is aborted
•
Malfunctions in control unit, even during
programming

Before disconnecting the control unit, switch off ignition and remove ignition key.

Make sure that the power supply is not interrupted during programming.

Connect battery charger/power supply - Suitable for AGM Type batteries, recommended
current rating of 90A fixed voltage 13.5V to 14.5V.
1
Preliminary work:
1.1
Connect a battery charger with a current rating of at least 90 A.
1.2
Switch on the ignition using the original driver's key. On vehicles with “Porsche Entry &
Drive”, do this by replacing the control unit in the ignition lock with the original driver's key if
necessary.
NOTICE
Coding will be aborted if the WLAN connection is unstable.
•
An unstable WLAN connection can interrupt communication between PIWIS Tester 3 and the
vehicle communication module (VCI). As a result, coding/programming may be aborted.

During control unit coding/programming, always connect PIWIS Tester 3 to the vehicle
communication module (VCI) via the USB cable.
1.3
9900 - PIWIS Tester 3 with software version 37.600.010 (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.
1.4
On the PIWIS Tester start screen, call up the  'Diagnostics' menu.
The diagnostic application is then started and the control unit selection screen is populated.
Information
The procedure described here is based on the 9900 - PIWIS Tester 3 software version
37.600.010.
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.
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Technical Information
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90/18
ENU
4434
4
Re-code control unit for "Tire Pressure Monitoring (TPM)":
Menu
•

Control
unit/Function
Instructions/information or
2.1
Control units
’Overview’
2.2
 Follow instructions:
•
•
'Additional menu'
•
Campaign
number

confirm/execute
 Result/consequence of action
call up
Create Vehicle Analysis Log (VAL) if necessary and
carry out any campaigns that are available for the vehicle.
2.3
2.4
Action

•F7“
•Yes“/•No“/
•F12“
‘Campaign’
select
•F12“
Value:
'For 971 => E7P3S'
'For 9YA => W1R9X'
enter
•F12“
Read and follow the information and instructions on the PIWIS Tester during the guided
programming sequence. Then press •>>“ to continue.
During the programming sequence, the control unit is re-programmed and then re-coded automatically if necessary.
Do not interrupt programming and coding.
Once control unit programming - and coding if necessary - is complete, you will be prompted to
switch the ignition off and then back on again after a specified waiting time.
Tyre pressure
monitoring
2.5
Control units
’Overview’
2.6
'Extended
identifications'
select
Software version programmed during this
campaign
0640
select
•F12“
If programming is not completed successfully (error message “Programming unsuccessful”),
programming must be repeated.
3
Subsequent work:
3.1
Read out and erase all fault memories.
3.2
Teach wheel IDs.
 Workshop Manual '443455 Replacing control unit for Tyre Pressure Monitoring (TPM)'
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Aug 17, 2018
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4434
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Technical Information
90/18
Information
If there are still fault memory entries in individual control units, start the engine briefly and
then switch it off again. 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.
3.3
Switch off ignition.
3.4
Disconnect the PIWIS Tester from the vehicle.
3.5
For vehicles with Porsche "Entry & Drive", replace the original vehicle key in the ignition lock
with the control panel again.
3.6
Switch off and disconnect the battery charger.
End of action required.
Invoicing:
The work involved is invoiced under the labor operation:
APOS
Labor operation
44342500
Programming control unit for Tire Pressure Monitoring (TPM)
I No.
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
44340
Control unit for Tyre Pressure Monitoring (TPM)
Damage type (SA4)
1134
Programming error
References:
 Workshop Manual '443455 Replacing control unit for Tyre Pressure Monitoring (TPM)'
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.
©2018 Porsche Cars North America, Inc.
Aug 17, 2018
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