Page 134 of 330
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
Page 135 of 330

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
Page 136 of 330

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
Page 138 of 330

Electrical system
Protection and security devices
Marea-Marea Weekend
2000 range Q
55.
SUPPLEMENTARY FUSEBOX
Many shunt fuses are found under the facia
just above the junction control unit
The fuses are grouped in two special multiple
connectors, one for the front wiring the other
for the facia wiring, according to a pre-set
position and located as shown in the figure:
3A: front wiring
Fuse Protected circuit Amp
- F1 Fuse protecting ignition activated services (15/54) 7.5
- F2 Fuse protecting headlamp washers 20
- F3 Fuse protecting injection and CODE, fan 7.5
- F4 Fuse protecting ABS 10
- F5 Fuse protecting compressor and air conditioner 7.5
- F6 Fuse protecting injection memory and CODE, fan 7.5
3D: facia wiring
Fuse Protected circuit Amp
- F1 Fuse protecting ignition activated services (INT) 7.5
- F2 Fuse protecting foglamps 15
- F3 Fuse protecting rear electric windows 25
- F4 Fuse protecting front electric windows 25
- F5 Fuse protecting sunroof, seats, cigarette lighter 30
- F6 Fuse protecting airbag 10
8 Publication no. 506.763/24
Page 145 of 330

Marea- Marea Weekend
2000 range ©
Electrical equipment
Control module
55.
Wiring diagram
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n ti
O Mill
(*) JTD
A. Battery recharging warning light
B. Low engine oil pressure warning light
C. Left direction indicator warning light
D. Right direction indicator warning light
E. Side lights warning light
F. Instrument panel symbol lighting
G. Main beam warning light
H. Air Bag fault warning light
I. ABS failure warning light
J. Fuel reserve warning light
K. Fuel level gauge
L. FIAT CODE system warning light
M. Injection system failure warning light
M1. EOBD warning light
N. Water in diesel filter warning light
O. Heater plugs warning light
(**) TD 75 BHP
P. Seat belt warning light
Q. Brake pad wear warning light
R. Low brake fluid/handbrake on/EBD sys
tem failure warning light
S. Brake light electronic control module
T. Brake light failure warning light
U. Doors open warning ilght
V. Speedometer
W. Rev counter
X. Engine coolant temperature gauge
Y. Electronic module
Z. Milometer - trip meter/outside tempera
ture gauge
Z1 Odometer reset button
* Short-circuit plugs
Copyright by Fiat Auto 15
Page 149 of 330
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
Page 150 of 330

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)
20 XII-00 - Update 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