Ferrari F430 Owner's Manual page 125

Tyre pressure monitoring system
(optional)
The vehicle can be equipped with a system
that measures the tyre pressure through
special sensors fitted on the inside of the
wheel rims, in correspondence to the
inflation valve.
These sensors trasmit a signal that is
detected by the aerials fitted behind the
gravel guards and connected to the ECU.
The system can momentarily experience
radio-electric interference emitted by
devices using similar frequencies.
The ECU processes this information and,
via the CAN line, transmits a series of tyre
pressure data and system errors, if any, to
the on-board instrument panel.
The signal transmitted by the ECU activates
some symbols on the multi-function display
with two priority levels: a soft warning if
the pressure drop with respect to the rated
pressure is greater than 0.2 bar, and a hard
warning if it is greater than 0.4 bar or if
there is a dynamic drop of over 0.2 bar/min.
The system is wired so that the aerials, the
control unit and the calibration button
are connected to the electric system of the
vehicle, positioned under the dashboard on
the left-hand side of the steering wheel.
Tyre pressure calibration button
To calibrate the system, turn the ignition
key to position II, press the button located
under the dashboard on the left-hand side,
holding it down for 4-10 seconds: the
symbol will appear on the multi-function
display.
The system will take a maximum of 20
minutes to complete the calibration
procedure with the vehicle in motion.
If the difference in pressure between the
wheels on the same axle exceeds 0.4 bar,
the system will not calibrate.
If the system detects a pressure drop during
calibration, the relevant symbol will appear
on the multi-function display (see
126).
6 - Technical Information
CAL
The system must be calibrated using the
relevant button on the dashboard after tyre
replacement or inflation.
CAUTION
The system warns the driver that
page
there is a drop in tyre pressure, however,
this does not exempt the driver from
periodically checking that the tyres are
inflated to the specified pressure (see plate
on page 10).
Moreover, the system does not inform
the driver of sudden damage to the tyres
caused by external agents.
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