61GETTING TO KNOW YOUR CAR
ELECTRICAL POWER
STEERING SYSTEM
IMPORTANT The electrical
power steering system only works
when the ignition key is at MAR.
A new electrically controlled power
steering system called EPAS (Electri-
cal Power Assisted Steering) is fitted
in the Fiat 600.
The EPAS system is operated by an
electric motor and consists of only
two parts: a steering column with
built-in electric motor and an elec-
tronic control unit.
The control unit processes the data
from the various sensors located in
the car and converts the signals into
commands for the power steering
motor to reduce the effect on the
steering wheel both when parking and
when cornering.
P4Q00503
fig. 82
1)Electronic power assisted steering control unit;
2)Car speed sensor;
3)Injection control unit;
4)Electric power steering motor;
5)Electrical power steering unit.
62GETTING TO KNOW YOUR CAR
The system is programmed at the
factory to ensure variable degrees of
assistance according to the require-
ments. In other words, power is in-
creased for parking and reduced as
the car’s speed increases.
The EPAS system only works when
the engine is running to avoid deploy-
ing the battery accidentally. Further-
more, it is equipped with a self-test
function to detect faults and incorrect
signals.
IMPORTANTThe steering wheel
may stiffen slightly in parking manoeu-
vres requiring a great deal of steering:
this is normal and caused by the
power steering motor overheat pro-
tection system tripping. The problem
does not require servicing and the
electric power steering system will
work normally the next time the car
is used.If the warning light comes on, see
chapter
GETTING TO KNOW YOUR CAR,
paragraph
WARNING LIGHTS.
FIAT 600 VAN
The version herein illustrated differs
from Fiat 600 saloon described in this
handbook for the different size of the
boot and the availability of two front
seats only.
Load recommendations
Fiat 600 Van has been designed and
approved on the basis of several set
maximum values:
– kerb weight
– payload
– gross vehicle weight
– total weight on the front axle
– total weight on the rear axle
– towable weight.
Each of these limits must be borne
in mind and must never be exceeded
under any circumstances. It is absolutely forbidden
to carry out whatever af-
ter-market operation in-
volving steering system or steer-
ing column modifications (e.g.: in-
stallation of anti-theft Device)
that could badly affect perfor-
mance and safety, cause the lapse
of warranty and also result in
non-compliance of the car with
homologation requirements.
