change wheel FIAT MAREA 2001 1.G Workshop Manual

Engine
Fuel feed system
10.
4F012XJ03
Marea- Matea Weekend 9 ™
2000 range (Q)
RPM SENSOR
The rpm sensor is fitted to the engine crank-
case and faces the phonic wheel on the
crankshaft.
The sensor is inductive type, i.e. it works by
varying a magnetic field generated when the
phonic wheel teeth (60-2 teeth) pass in front
of the sensor element.
The injection control unit uses the rpm sensor
signal to determine crankshaft speed and an­
gular position.
Operation
The changeover from full to empty due to the
presence or absence of teeth sets up a mag­
netic flux change sufficient to generate an in­
duced alternating voltage proportional to the
number of teeth on the phonic wheel.
The peak sensor output voltage value, all
things being equal, depends on the distance
between the sensor and the tooth (gap).
1. Steel bush
2. Permanent magnet
3. Sensor case
4. Winding
5. Core
6. Phonic wheel
7. Electrical connection
To obtain the correct signal, the specified gap
between phonic wheel and sensor should be
between 0.8 and 1.5 mm
This distance is not adjustable. When the gap
is not as specified, check the condition of the
sensor and phonic wheel.
Winding resistance
860 Ohm ±110% at 20 °C
1. Maximum magnetic flux
2. Minimum magnetic flux
3. Induced alternate voltage
12 Publication no, 506.763/24

Marea-Marea Weekend # *»
2000 range ©
Electrical system
Radio System
55.
GENERAL DESCRIPTION
The car radio reception and playing system has been developed with the acoustic properties of the pas­
senger compartment in mind to offer outstanding sound reproduction at all times.
The system is installed on the car directly during production, without subsequent interventions. All wires
are integral with the car wiring.
The system includes:
- radio
- front speakers (with separate tweeters)
- rear speakers
- radio supply leads
- radio and speaker connection leads
- radio controls on steering wheel
- coaxial aerial connection lead
- stylus aerial on roof
- connection lead for CD changer, located in boot.
LOCATION OF SYSTEM COMPONENTS
Component key
1 Radio
2 Radio controls on steering wheel
3 Front speaker
4 Front tweeter
5 Rear speaker
6 Aerial
7 Coaxial aerial lead
8 Lead for CD changer
9 CD player/changer
Copyright by Fiat Auto XII-00 - Update 19

Electrical system
Radio System
55.
CAR RADIO
The radio is customised to fit in with the instrument facia styling. It is fixed because it cannot be adapted
to any other car.
It comes in three versions:
RADIO H4 : with CD player, theft protection, predisposition for handsfree mobile phone use,
connection lead for CD changer, possibility of steering wheel controls.
RADIO H3 : with cassette player, theft protection, predisposition for handsfree mobile phone
use, connection lead for CD changer, possibility of steering wheel controls.
Marea-Marea Weekend
2000 range ©
RADIO M2 : with cassette player, predisposition for handsfree mobile phone use
AERIAL
The car is fitted with aN aerial on the roof.
Electrically-controlled aerial
The car radio is fitted with the wiring for controlling an automatic electric aerial (that rises when the car
radio is switched on and lowers when the radio is switched off).
SPEAKERS
The special sound system comprises:
- 2 elliptical mid-woofer speakers 130 x 180 mm with a power output of 30W max each;
- 2 diffusori fluid iron tweeter dome speakers with a max power output of 40W max;
- 2 full-range 0 130 mm speakers with a power output of 30W max each (only for H4 and H3)
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Radio system
Electrical system Marea- Marea Weekend
2000 range @
55.
Supplementary connections
Connector C
Line output: possibility of connection for power amplifier (Booster)or active speaker
C1 Rear speaker (left +)
C2 Rear speaker (right +)
C3 Earth (-)
C4 Front speaker (left +)
C5 Front speaker (right +)
C6 Switch signal for power amplifier: on/off (max. 0.3A).
Phone input
Possibility of mobile phone handsfree connection
C7 NF phone
C12 NF phone earth
Remote control from steering wheel (H4 and H3 versions)
C8 Earth
C9 Remote control
Cd changer connection (H4 and H3 versions)
C13 CD bus control line
C15 CD bus earth
C16 +12V supply voltage for cd changer
C17 Switching voltage for cd changer
C18 NF CD earth
C19 left NF CD
C20 rifht NF CD
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Electrical system Marea- Marea Weekend
Radio system 2000 range (§)
55.
CONTROL DESCRIPTION
RADIO H4
This comes with a CD player, antitheft protection, predisposition for mobile phone handsfree operation,
connection lead for CD changer, possibility of steering wheel controls.
4 5 2 14 7 6
13 18 17 16 15 12 11 10
The tables on the following pages details key functions according to operating mode (RADIO, CD, CD
CHANGER, PHONE).
24 XII-00 - Update Publication no. 506.763/24

Marea-Marea Weekend
2000 range @
Electrical system
Radio System
55.
RADIO H3
This comes with a cassette player, antitheft protection, predisposition for mobile phone handsfree opera­
tion, connection lead for CD changer, possibility of steering wheel controls.
/ / /' /
13 18 17 16 15 12 11 10
The tables on the following pages details key functions according to operating mode (RADIO, CASSETTE,
CD CHANGER, PHONE).
Copyright by Fiat Auto XII-00 Update 27