Page 121 of 330
Ma tea- Marea Weekend 9 m
2000 range ©)
Engine
Fuel feed system
10.
1. Undo the fixing nuts (1) and remove the
vacuum reservoir.
SOLENOID VALVE CONTROLLING
SUPERCHARGING PRESSURE
Removing-refitting
- Position the vehicle on a lift, then discon
nect the negative battery lead.
2. Working from underneath the vehicle, dis
connect the electrical connector (1) and
the pipes (2).
3. Press the retaining tab on the rear of the
mounting bracket and release the solenoid
valve.
FUEL FILTER
Removing-refitting
4. Disconnect the electrical connections (1)
from the fuel filter and the supply and re
turn pipes to the tank and the supply pipes
to the pump (2), then undo the nuts (3)
fixing the fuel filter mounting. Lift up the
filter and disconnect the electrical connec
tion (4) for the water in the diesel sensor.
Copyright by Fiat Auto oi upjdin 35
Page 122 of 330
Engine
Fuel feed system
Marea- Marea Weekend @ ™
2000 range ©
PRESSURE REGULATOR
NOTE During the operations of removing-
refitting the pressure regulator, work
in extremely clean conditions.
Removing
- If the vehicle is equipped with a shield un
der the engine, remove it.
1. Remove the engine oil filler plug (1), then
undo the fixing nuts (2) and remove the
sound insulation cover (3).
2. Undo the bolts (1) fixing the retaining
bands for the injector wiring.
Disconnect the electrical connectors (2) for
the injectors and place the wiring to the
side.
- Release the injection cable loom from the
retaining bands.
3. Undo the nuts (1) fixing the fuel return
manifold pipe (2) to the intake manifold.
Place the fuel return manifold pipe to the
side.
4. Disconnect the electrical connector (1) for
the pressure regulator, then undo the bolts
(2) fixing the regulator to the pump.
36 Print n° 506.763/25
Page 123 of 330

Marea-Marea Weekend H nD Engine
2000 range (Q) Fuel feed system
10.
1. Grip the outer casing of the regulator, partly
extract it and, at the same time, rotate it so
that the fins (1) which contain the open
ings for the fixing bolts are positioned hori
zontally.
NOTA Do not grip the pressure regulator by
the electrical connector.
Insert the blades of two screwdrivers by the
fins (1) and very carefully extract the pressure
regulator.
NOTE Do not use a screwdriver or other
tools in the seal areas between the
regulator and the pressure pump.
2. Pressure regulator
1. High pressure seal (black or green)
2. Anti-extrusion seal (white)
3. Low pressure seal (black)
NOTE // the high pressure seal accidentally
remains inside the pump casing, turn
the ignition key to the ON position
(engine switched off); this will op
erate the pump shaft and a small
amount of fuel and the seal will come
out.
NOTE Do not, under any circumstances, use any tools for extracting the high pressure seal and this
could damage the inner surface of the pump.
Refitting
- Suction off any impurities present inside the pump casing.
- Check the condition of the three seals and make sure they are correctly positioned before fitting.
- Slightly lubricate the outer surface of the three seals using vaseline. Do not, under any circumstances,
lubricate the other surfaces of the pressure regulator.
- Insert the pressure regulator in its housing on the pump, pressing gently and, at the same time, rotating
the regulator until it is is contact with the surface of the pump.
NOTE Do not, under any circumstances, use a hammer or other tools when fitting the pressure regula
tor.
- Fit the two bolts fixing the pressure regulator to the pump acsing. and tighten them to a torque of
0.9±0.1 daNm.
- Reconnect the electrical connector and complete the refitting of the remaining components reversing the
order of the operations carried out for the removal.
Copyright by Fiat Auto |& yt-01 - Update 37
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 139 of 330
Marea-Marea Weekend Electrical equipment
2000 range (§) Location of components on the car
55.
LOCATION OF RELAYS AND FUSES ON THE VEHICLE (BONNET - Petrol engine types)
Fi998l152B 273 274 i * *
3B-3C Power fusebox
96 Power fuse protecting ABS
98 Headlamp washer intermittent function
122 Engine cooling fan low speed relay
123 Engine cooling fan high speed timer
124 Air condiitoning compressor control relay
129 Power fuse protecting engine coling fan
150 Injection system relay feed
151 Lambda probe control relay for fuel pump
and injectors
152 Fuse protecting injection system
152A Fuse protecting injection system
152B Fuse protecting injection system
273 Fuse protecting automatic transmission
system
274 Fuse protecting automatic transmission
system
276 Starter enablement relay
(••) Versions with air conditioning
(*) With automatic transmission
Copyright by Fiat Auto 9
Page 141 of 330
Marea-Marea Weekend Electrical equipment
2000 range (§) Location of components on the car
55.
LOCATION OF RELAYS AND FUSES ON THE CAR (PASSENGER COMPARTMENT)
3A/D Supplementary fusebox 332 Ignition activated power relay.
4 Junction unit 344 I.E. protective fuse
5 Dipped headlamps relay feed
32 Fog lamp control relay
150 Injection system relay feed
151 Lambda probe control relay for fuel pump
and injectors
152 Fuse protecting injection system
326 Additional heater control unit
328 Hazard warning lights relay
Copyright by Fiat Auto 11
Page 144 of 330

Electrical equipment
Instrument panel
Marea-Marea Weekend
2000 range ©
55.
INSTRUMENT PANEL (excluding C.A.)
3 4 56789 10 11 12
21 20 1918 17 24 16 15 14 13 23 22
Front side
1. Fuel level gauge
2. Fuel reserve warning light
3. Speedometer
4. ABS failure warning light
5. Brake pad wear warning light
6. Left direction indicator warning light
7. Side lights warning light
8. Right direction indicator warning light
9. Main beam warning light
10. Low brake fluid level and handbrake ap-
plied/EBD system failure warning light
11. Rev counter
12. Engine coolant temperature gauge
13. Air Bag fault warning light
14. Brake light failure warning light
15. Doors open warning ilght
16. Trip counter/mileometer/outdoor tempera
ture gauge
17. Low engine oil pressure warning light
18. Generator warning light
19 Injection system failure warning light
20. FIAT CODE system warning light
21. Heater plugs warning light
22. Seat belt warning light
23. Water in diesel filter warning light
24. EOBD warning light
14 Print rf 506.763/23
Page 145 of 330

Marea- Marea Weekend
2000 range ©
Electrical equipment
Control module
55.
Wiring diagram
.mrmmmL 18 3 4 5 6 7 8 9 10 U 1213 1415161718 |TTTTrTrrrrTTTTT1.TTTTT1pmL 18 3 4 5 6 7 8 9 10 11 121314151617181920213223248586
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