Porsche 911 Carrera Owner's Manual page 153

Instrument panel On-board computer Text display on on-board
computer
TPC inactive
System learning
TPC inactive
TPC inactive
Brief disturbance
TPC inactive
Too many wheel transmitters
Meaning/measure
The Tire Pressure Monitoring is
learning the wheels on the vehicle.
The Tire Pressure Monitoring is
searching for the tires and their
position. During this period the
current pressure specifications
are not available on the on-board
computer.
The Tire Pressure Monitoring is faulty.
Consult an authorized Porsche
dealer.
The Tire Pressure Monitoring is
temporarily deactivated by excessive
tire temperatures (approx. 120 C
(248F)) or external interference (e.g.
from other wheel transmitters inside
the car). Once the source of the
interference is removed, the system
is automatically reactivated.
151
Controls, Instruments