Disabling Of Automatic Restarting (Safety Function); Conditions Managed By The Ecm - Fiat TIPO Handbuch

IBS fault: The engine is automatically restarted without any action by driver if an IBS malfunctioning
occurs.
Outside temperature sensor: If an outside temperature sensor is fitted, the engine is automatically
restarted without any action by driver if:
 the outside temperature is lower than the limit Temp_min_2 (−14°C).
 the outside temperature is higher than the limit Temp_max_2 (80°C).
NOTE: the temperature limits that have been set on the outside temperature sensor are "extreme"
and therefore must always be respected.
Automatic climate control: The engine is automatically restarted without any action by the driver if
the difference between the climate control temperature set by the customer and the temperature in
the passenger compartment is greater than ± 7°C.
NOTE: in the case of manual air conditioning, the engine remains off.
Logistic Mode status active: The engine is automatically restarted without any action by driver if
the Logistic Mode status is activated.
Semi-automatic parking system SPM: When the semi-automatic parking system is fitted, the
engine is automatically restarted without any action by driver if the parking system is activated during
the engine stopping stage.

Disabling of automatic restarting (safety function)

In some cases, after an automatic engine cut-out through the Stop/Start, it is possible that the
automatic restart requested by the driver is not carried out.
In these circumstances, restarting is only possible through manual intervention by the driver on the
key, to restore the behaviour of the vehicle to that of a traditional car without S&S.
The management of this function is transferred to the ECM and the BCM.

Conditions managed by the ECM

Too many unsuccessful attempts at automatic starting
The threshold Max_cranking_attempts (5 times) has been exceeded. The threshold indicates the
maximum number of failed automatic engine restart attempts. This threshold is set to prevent
damage to the starter by too many start-up attempts close together. Refer to the appendix for
details on the threshold values.
The BCM requested to prevent the engine automatic restart.
Malfunction or fault detected in at least one of the following sensors or systems:
Accelerator pedal

Brake pedal

Brake servo vacuum sensor

 Engine coolant temperature sensor
 Vehicle speed
 Gearbox/transmission control unit
Clutch switch

Neutral sensor

Engine rpm sensor

Camshaft sensor

Reverse switch

Engine or Powertrain Control Module (with MIL on).

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FIAT TIPO -57- 0.0
REV