Fiat 500C ABARTH, Manual

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- 30 - Fiat 500 C – S&S
The BCM body computer input data are:
•
AutoStart (concerning the S&S function intervention)
•
Luggage compartment lock release (information coming from the button on the tailgate handle
or from the remote control)
•
Comfort Opening (from the lock release button of the remote control)
•
Vehicle speed
•
Outside temperature
•
Key status (key on/off)
The information sent by the Body Computer output concerns the soft top position. All information is
sent through B-CAN network and is used by the climate control node NCL to manage the climate
control system when the soft top is open.
The Body Computer node - BCM transmits and receives data to/from the soft top control unit RCU
through a LIN line. BCM sends the following information to the RCU control unit:
•
Intervention of the S&S function (Autostart)
•
tailgate release request; tailgate status
•
vehicle speed
•
outside temperature
•
“Comfort opening” control
•
key status (key on/off)
The Body Computer BCM receives from the RCU feedback signals, to know the true position of the
roof, the correctness of movement controls; it can store possible malfunctioning errors. The RCU
cannot undergo diagnosis procedures. The errors for the soft top management are stored in the BCM.
The RCU interfaces with the user through the opening and closing buttons. The RCU output is the
control of the motor. The latter sends a feedback signal to the RCU, concerning the soft top position
by the relevant Hall effect sensor.