Tire Pressure Monitoring (2Nd Generation) - Porsche Cayenne V6 2008 Service Information

Chassis
1 - Control unit
2 - Trigger senders
3 - Wheel electronics
4 - Central digital antenna
5 - Left fuse carrier
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Tire Pressure Monitoring (2nd generation)

Timely detection of a gradual loss of pressure not only increases driving
safety, but can also prevent uneven tire wear and high fuel consumption.
The optional Tire Pressure Monitoring system (TPM) has therefore been
available for all Cayenne models since 2003. It continually monitors the
air pressure in all four tires and displays this information for the driver in
the instrument cluster.
The new Tire Pressure Monitoring system (TPM) generation is standard
equipment for all Cayenne models in the North American market. The
most important additional function in the system is the option for auto-
matically and quickly detecting the wheels mounted on the vehicle (own
wheels) and their installation position.
The radio signals from the wheel electronics units are requested by the
control unit as required via the trigger senders. The system detects the
vehicle's own wheels and the installation position of own wheels by eval-
uating the trigger location and performing a statistical evaluation of the
wheel electronics information received.
Component Locations
The system comprises the following components.