2000 FIAT MAREA junction unit

Engine
Fuel feed system
Marea- Marea Weekend
2000 range @
10.
FUEL ANTI-EVAPORATION SYSTEM
The fuel anti-evaporation system has several improvements, compared with previous versions, aimed at
sealing the fuel vapours on the outside.
In particular, the following measures have been adopted:
- multi-purpose valve on the tank to prevent leaks.
- New anti-evaporation solenoid valve and the adoption of rapid attachment connectors for the anti-
evaporation system pipes.
- Plug on the fuel filler with attachment cable.
For further information on the fuel system, refer to publication: 507137.
Key
1. Filler
2. Multi-purpose valve
3. Active charcoal filter
4. Anti-evaporation solenoid
valve
5. Fuel vapour intake on inlet
manifold
6. Fuel tank
7. Engine management elec­
tronic control unit
LOCATION OF DIAGNOSTIC SOCKET
The diagnostic socket for the analysis of the en­
gine management system is located under the
junction unit in the dashboard. This socket also
makes the connection with the diagnostic equip­
ment (Examiner or other instruments) for the
other electronic control units on the vehicle.
In effect, it is a "standardized" 16-way diagnostic
socket which can be connected to the diagnostic
equipment using the "MPX97" adaptor.
2 Print n° 506.763/23

Engine
Fuel feed system
Marea-Marea Weekend ®> *»
2000 range @)
10.
LOCATION OF INJECTION/IGNITION SYSTEM COMPONENTS
Key
1. Variable valve timing control solenoid
2. Injectors
3. Fuel vapour cut-out solenoid valve
4. Injection/ignition control unit
5. General system protective fuse
6. Flow meter/air temperature sensor
7. Motorized throttle body
8. Engine coolant temperature sensor
9. Vehicle speed sensor
10. Variable geometry manifold actuator solenoid
valve
11. RPM sensor
12. Front Lambda sensor connector
13. Ignition coil
14. Timing sensor
15. Rear Lambda sensor connector
16. Detonation sensors
17. Accelerometer
LOCATION OF DIAGNOSTIC SOCKET
The diagnostic socket for the analysis of the en­
gine management system is located under the
junction unit in the dashboard. This socket also
makes a connection with the diagnostic equip­
ment (Examiner or other instruments) for the
other electronic control units on the vehicle.
It is a "standardized" 16-way diagnostic socket
which can be connected to the diagnostic equip­
ment using the "MPX97" adaptor.
2 Print n° 506.763/23

Marea-Marea Weekend Electrical system
2000 range (§) Index
55.
page
PROTECTION AND SAFETY DEVICES
- Protection and security devices 1
- Junction unit 4
- List of fuses and main protected circuits 5
- Supplementary fusebox 8
LOCATION OF VEHICLE COMPO­
NENTS
- Location of vehicle relays and fuses. 9
- Location of control units and testing 12
sockets
CONTROL PANEL
- Control panel (except AT) 14
- Control panel (AT) 17
RADIO SYSTEM
- General description 19
- Warnings 23
- Description of controls 24
- Operation 33
- EXPERT control level 40
- Coding 44
- Compact Disc Player 46
- Cassette Player 47
- Multiple Compact Disc player 49
- Advice and precautions 51
Copyright by Fiat Auto XII-00 Supersedes previous, version

Electrical equipment
Protection and safety devices
Marea- Marea Weekend
2000 range ©)
55.
Main supplies wiring diagram (petrol engine types)
Component key
3B/C Power fusebox
3A/D Supplementary fusebox
4 Junction unit
10 Engine battery earth
10A Bodyshell battery earth.
11 Battery
12 Ignition switch
96 Power fuse protecting A.B.S
129 Engine cooling fan protection power fuse.
332 Ignition activated power relay.
(*) See table on previous page.
2 Print n° 506.763/23

Marea- Marea Weekend
2000 range ©)
Electrical equipment
Protection and safety devices
55.
Main supplies wiring diagram (diesel engine types)
Component key
3B/C Power fusebox
3A/D Supplementary fusebox
4 Junction unit
10 Engine battery earth
10A Bodyshell battery earth
11 Battery
12 Ignition switch
96 Power fuse protecting A.B.S
129 Engine cooling fan protection power fuse.
129A Power fuse protecting engine cooling fan
no.2
201 Heaer plugs control unit
332 Ignition activated power relay.
Copyright by Fiat Auto 3

Electrical equipment
Junction unit
Marea-Marea Weekend
2000 range ©
55.
Junction unit
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Front view of control unit
and location of fuses
The connectors cannot
be connected incor­
rectly as each has its
own unique shape. The
letters identifying the
connectors are the same
as those used in the
wiring diagrams .
NOTE connectors A, C and D: are connected to the front lead.
connectors B,F, I, J and H are connected to the facia lead
connectors E and G are connected to the rear lead
Rear view of control unit
and location of relays.
E1. Switch discharge relay for
starting (30A)
E2. Horn relay (20A)
E3. Heated rear windscreen relay
(30A)
4 Print n° 506.763/23

Marea-Marea Weekend
2000 range Q
DESCRIPTION OF WIRING AND CONNECTORS
CONNECTOR A
N.
No.
Wiring
colour Circuit involved
1 R Supply (+30) from fuse box
2 BR Supply (+30) from fuse box
CONNECTOR c
N. No.
Wiring colour Circuit involved
1 RN Car interior fan power supply (with
air conditioner), air conditioner
control unit
2 MB Fuel pump control, inertia switch
3 AN Car interior fan power supply (only heater), air conditioner control unit
4 H Right dipped beam headlamp
5 HN Left dipped beam, headllamp en­
ablement
6 VN Left main beam
7 V Right main beam
CONNECTOR E
N.
No.
Wiring colour Circuit involved
1 RN Right brake light
2 GR Rear view mirror control light
3 RG Left brake light
4 MN Rear window power supply
5 MB Fuel pump, inertia switch
6 -N.C.
7 AN Left rear turn signal
8 -N.C.
9 GR Right rear side light (without check
panel)
10 HL Left number plate light (without
check panel)
11 -N.C.
12 RG N.C.
13 RN N.C.
14 R Supplementary brake light
Electrical system
Junction unit
55.
CONNECTOR B
N. No.
Wiring
colour Circuit involved
1 R Power supply to electric windows, door lock, service control unit, main beam relay, fog lamp, sun-roof, heated seats, cigar lighter
CONNECTOR D
N.
No.
Wiring colour Circuit involved
1 G Left headlamp alignment
2 G Right headlamp alignment
3 G Headlamp alignment control
4 AN Front and left side turn signal
5 AR Alarm control unit power supply
6 HB Right headlamp alignment power
supply
7 H Left headlamp alignment power
supply
8 H Headlamp alignment control
9 B Reversing light control
10 Z Horns.
11 Z Horns.
12 -N.C.
13 GV Right front side light
14 AR Brake light power supply
15 A Front and right side turn signal
16 GL Left front side light
17S -N.C.
18 RN Brake light control
CONNECTOR F
N.
No.
Wiring colour Circuit involved
1 HR Dipped beam control
2 -N.C.
3 LR Main beam control
4 -N.C.
5 G Side light power supply from ignition
Copyright by Fiat Auto 5

Electrical system
Junction unit
Marea- Marea Weekend
2000 range ©
55. 55.
DESCRIPTION OF WIRING AND CONNECTORS (cont)
CONNECTOR G
N.
No.
Wiring
colour Circuit involved
1 HB Right number plate light (without check panel)
2 -N.C.
3 AR Rear view mirror power supply
4 -N.C.
5 A Right rear turn signal
6 BN Left reversing light (only Marea)
7 B Right reversing light
8 GN Left rear side light (without check panel)
9 RG Rear courtesy light power supply (left for Marea Weekend)
10 RN Remote control receiver power sup­ply
11 RN Front courtesy light power supply
12 RN Right rear courtesy light power sup­ply (Marea Weekend)
CONNECTOR 1
N. No. Wiring
colour Circuit involved
1 AN Hazard warning light power supply
2 CB + 15 power supply from ignition
3 -N.C.
4 CB Stalk unit power supply
5 C Power supply, windscreen wiper
6 N Earth
7 LN Horn signal
8 AG + 15 power supply from ignition (start-up excluded)
9 AB Hazard warning light power supply
10 AB Hazard warning lights and instru­ment panel power supply (from January 2001)
11 AB Hazard warning light power supply
12 AR Turn signal power supply
13 R Instrument panel power supply
14 -N.C.
CONNECTOR H
N.
No.
Wiring
colour Circuit involved
1 AN Right turn signal warning light
2 C Power supply, door lock, radio
3 AN Right turn signal control
4 RN Right brake light (versions with Check Panel)
5 A Left turn signal control
6 A Left turn signal control
7 A Left turn signal warning light
8 AN Right turn signal control
9 RV Brake light control (versions with
Check Panel)
10 MN Mirror demister control
CONNECTOR J
N.
No.
Wiring colour Circuit involved
1 RG Left brake light (versions with check
panel)
2 AG Alarm and instrument panel power
supply (to December 2000)
3 GN Side light warning light, switch panel lighting, automatic transmis­sion control lighting
4 BC Rear window control
5 R Power supply, radio
6 LB Main beam warning light
7 RV Radio phone power supply
8 -N.C.
9 R Radio power supply
10 GN Radio lighting
11 GN Instrument lighting dimmer
12 GN Cigar lighter lighting
6 Publication no. 506. 763/24