No. 226-20-2

Service
Technical Information
226/20 ENU
4432
4
Complaint - Tire Pressure Monitoring (TPM) System Error message in Instrument Cluster Observe Specified Procedure (226/20)
Model Line:
911 Carrera (992)
Model Year:
2021
Concerns:
Tire Pressure Monitoring (TPM) system
Equipment:
Tire Pressure Monitoring 433 MHz (I-no. 7K3)
Symptom:
The message "TPM fault - Service necessary" is displayed in the instrument cluster - particularly during the test drive for the sales check or after changing the wheels.
Action
Required:
Teach wheel electronics using the PIWIS Tester.
Information
There is a possibility that the wheel electronics must be taught again at a later time using the PIWIS
Tester, e.g. when changing a wheel.
The topic is currently the subject of further analysis. Please do not replace the wheel electronics at
present, as it cannot be guaranteed at this time that this will correct the problem. As soon as a permanent
remedial action is available, this Technical Information will be updated accordingly.
Teaching wheel electronics for Tire Pressure Monitoring (TPM)
Work
Procedure:
Teach the Tire Pressure Monitoring (TPM) system using the PIWIS Tester, see  Workshop Manual
'443225 Teaching wheel electronics'.
Information
Make sure that the 'Wheel IDs unknown' procedure is selected in the menu-guided procedure.
Invoicing
Invoicing:
For documentation and warranty invoicing, enter the PQIS coding specified below in the warranty claim:
PQIS coding:
Location (FES5)
4432
Wheel electronics
Damage type (SA4)
1100
Adjustment fault
References:
 Workshop Manual '443225 Teaching wheel electronics'
AfterSales
Jan 8, 2021
Page 1 of 2
4
Service
4432
ENU
Technical Information
226/20
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.
Jan 8, 2021
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AfterSales