Page 102 of 330
![FIAT MAREA 2000 1.G Workshop Manual Engine
Fuel feed system
JTD Marea-Marea Weekend ©
2000 range ©
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GLOW PLUG PREHEATING CONTROL
UNIT
The glow plugs are controlled by mea FIAT MAREA 2000 1.G Workshop Manual Engine
Fuel feed system
JTD Marea-Marea Weekend ©
2000 range ©
10.
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GLOW PLUG PREHEATING CONTROL
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Engine
Fuel feed system
JTD Marea-Marea Weekend ©
2000 range ©
10.
iH
ft
B I 0 ] I D
[ 0 0 1 1
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GLOW PLUG PREHEATING CONTROL
UNIT
The glow plugs are controlled by means of a
preheating control unit under the direct con
trol of the injection control unit.
The preheating control unit contains a smart
relay that sends a return response (feedback)
to the injection control unit, which is thus in
formed of faults in the preheating control unit
or glow plug short-circuits to earth.
The figure shows the connectors on the base
of the preheating control unit and the pin-out
1. Earth
2. Injection control unit (pin 22)
3. Power supply from main injection relay
4. Not connected
5. Injection control unit (pin 62)
8. Positive from battery (+30)
G. Glow plugs (only four outputs are used)
ACCELERATOR
PEDAL POTENTIOMETER
Accelerator pedal position is converted to an
electrical voltage signal and send to the injec
tion control unit by a potentiometer connected
to the accelerator pedal.
Accelerator pedal position is processed to
gether with rpm information to provide injec
tion times and pressure.
The sensor consists of a case (1) secured to
the pedal by a flange, which contains an axi-
ally-positioned shaft (2) connected to two
potentiometers (3): main and safety potenti
ometers.
A coil spring on the shaft ensures the correct
resistance to pressure while a second spring
ensures return upon release.
16 Publication no. 506.763/24
Page 151 of 330

Marea- Marea Weekend Electrical system
2000 range @ Radio System
55.
TECHNICAL DATA
Radio power (H4 and H3 versions)
- 4 x 15W (with standard sound system made up of mid-woofer + tweeter and full range speakers).
Radio power (version M2)
- 2x15W (with standard sound system made up of mid-woofer + tweeter speakers).
- 4 x 5W (with optional 4-channel speaker system that can be installed by After Market).
WARNING The standard system is 2 x 15W, If a 2 x 15W system is fitted, an adaptor is fitted be
tween radio and wiring.
Fuse
The radio is fitted with a 10A fuse (D). (5A for the M2 version)
.Li.
3 6
2 5
B I M 5i I
T^l A 4| 6| |
I I I
2| 4| | |
CONNECTIONS
Connector A
A1 SCV signal ( + ) for adjusting volume ac
cording to speed
A2 Phone Mute signal for mobile phone
A4 +12V ignition-operated voltage supply
A5 aerial supply output +12V (max. 0.5A)
A6 +12V display lighting output voltage
A7 +12V direct supply voltage
A8 Earth
Connector B
B1 rear speaker (right +)
B2 rear speaker (right -)
B3 front speaker (right +)
B4 front speaker (right -)
B5 front speaker (left +)
B6 front speaker (left -)
B7 rear speaker (left +)
B8 rear speaker (left -)
Copyright by Fiat Auto XII 00 Update 21
Page 152 of 330
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
22 XII-00 - Update Publication no. 506.763/24
Page 153 of 330

Marea-Marea Weekend
2000 range ©
Electrical system
Radio System
55.
A
WARNINGS
Anti-theft protection
The radio comes with a theft protection system comprising of a segret 4 digit code.
The protection system makes the rdaio inoperable if it is removed from the facia as a result of a theft. See
the following pages to activate the antitheft device
CODE card
The radio identity document shows the model, serial number and secret code.
The serial number is the same as the number stamped on the set frame
If the set is lost, the CODE card facilitates search investigations and speeds up claim settlement by insurers
due to the ownership document.
r i A T
SECURITY
CODICE Dl SICUREZZA
A
If the antitheft protection is active and the radio is disconnected from the car battery, the radio is
still protected electronically
It may only be operated again by entering a special code.
Display
If the set is disconnected from the voltage supply, the display figures flash when it is reconnected.
The flashing figures are a reminder that the clock must be reset as described below.
Extended function field (EXP key)
The EXPERT control level allows the user to use a range of functions beginning with the base control yet
without losing an overall view.
Operation with mobile phone (PHONE)
The radio is designed for connection to a mobile phone handsfree system (using the PHONE IN input).
The radio sound is deactivated while the mobile phone is in operation.
PHONE appears on the display.
Copyright by Fiat Auto XII-00 - Updatfi 23