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Lower Shaft; Description Of The Signals; Normal / City" Driving Mode Selection Signal - Fiat TIPO Bedienungsanleitung

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torsion beam between the two shafts determines the value of the torque applied between the steering
wheel and the steered wheels.
Through the signal from this potentiometer the control unit can understand the effort that the driver is
exerting on the steering wheel, and the direction of the torque. Through the same principle
(potentiometer), it measures the angular position of the output shaft in relation to the centre (wheels
straight).
Through the signal, the control unit is capable of determining how many degrees the steering wheel
has moved through in relation to the centre.
On versions with ESC the sensor also has the function of a steering angle sensor and is designed to
calculate the number of revolutions for the steering wheel and how many degrees per turn.
The information supplied by the torque/position sensor is sent through the C-CAN from the Electric
Steering Node for optimum management of the electronic stability control managed by the NFR.
Note: it is prohibited to carry out tests on the sensors using any instruments: any diagnosis MUST be
carried out using the electric steering control unit.

Lower Shaft

The connection between the steering column output shaft and the steering box pinion is made through
a telescopic intermediate shaft that is attached to the pinion by means of a splined fork and a screw.

DESCRIPTION OF THE SIGNALS

"Normal / City" driving mode selection signal

The "Normal / City" function varies the power assistance torque depending on the speed of the
vehicle. It is possible to switch from the basic "Normal" configuration to "City" using the monostable
button in the control panel.
The Electric Steering Node system receives the "Normal / City" signal from the C-CAN and
implements the strategy requested.
The Body Computer Node receives the analogue Normal / City signal (The ECO signal will not be
taken into consideration since it doesn't vary the steering assistance, only the torque delivered in that
operating mode) which will vary when the button is released, activating the designated signal, and
when the driver applies a torque greater than 1 Nm (for versions with TwinAir engine, the Eco button
will be located on the auxiliary control panel; for other versions, the City button will be located in the
central control panel).
All rights reserved. The circulation and reproduction of all or part of this guide by any means is prohibited.
FIAT TIPO
-7-
0.0
REV

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