2001 FIAT MAREA marea weekend

Auxiliary Units
Climate control
Marea-Marea Weekend
2000 range O
50
COMPRESSOR (1910 JTD)
The compressor fitted on this version is the SANDEN SD7V16 variable capacity type.
The capacity of the compressor varies starting from the maximum value (161.3 cm^/rev) and is gradually
reduced (up to 10.4 cm^/rev) according to the system load variations. - changed outside temperature
and/or humidity conditions or sharp variations in the engine load.
This solution is defined as "unlimited variable capacity".
The compressor is the alternating piston type: the variation in capacity is achieved by tilting the connect­
ing rod holder plate with a consequent variation of the piston stroke: the movement of the plate is acti­
vated by an internal regulation valve according to the balance of pressure upstream and downstream of
the compressor. In particular, a low intake pressure involves the shuttering of the compressor (reduced ca­
pacity), whilst a high pressure involves operation at maximum power (maximum capacity).
7 6 4 3 2
5 9
1 Diaphgram valve
2 Pistons
3 Connecting rods
4 Connecting rod plate
5 Shaft
6 Pin
7 Arm
8 Slide
9 Guide
Pa Intake pressure
Pi Pressure inside the compressor
Pm Supply pressure
Operation
The SD7V16 compressor is illustrated in the diagram; it consists of seven pistons (2) and connecting rods
(3) fastened to a connecting rod holder plate (4). The rotary motion of the plate (4), on the shaft (5)
produces the alternating movement of the pistons.
A change in the plate angle allows an alteration in capacity: maximum inclination (as in the diagram) for
maximum capacity; almost zero inclination (vertical position) for minimum capacity (virtually nil).
The plate (4) rotates around the pin (6) hinged on the shaft (5) arm (7).
The movement of the plate (4) in relation to the shaft (5) takes place by means of splining made from a
low resistance material.
The plate (4) slides below along a guide (9) via a runner (8) made from a low friction material.
The diaphragm valve (1) controls the flow rate adjustment according to the difference between Pa (intake
pressure) and Pi (pressure inside the compressor).
N.B. the solution adopted for this compressor is designed to keep the internal pressure Pi constant, with
advantages in terms of ease of adjustment and quiet, smooth operation.
2 Print n° 506.763/23

Marea-Marea Weekend
2000 range ©)
Auxiliary Units
Climate control
50
COMPRESSOR ( 1998 engine)
The compressor fitted on this version is the SANDEN SD6V12 variable capacity type.
The capacity of the compressor varies starting from the maximum value (125.1 cnrfVrev) and is gradually
reduced (up to 6.2 cm /rev) according to the system load variations. - changed outside temperature
and/or humidity conditions or sharp variations in the engine load.
This solution is defined as "unlimited variable capacity".
The compressor is the alternating piston type: the variation in capacity is achieved by tilting the connect­
ing rod holder plate with a consequent variation of the piston stroke: the movement of the plate is acti­
vated by an internal regulation valve according to the balance of pressure upstream and downstream of
the compressor. In particular a low intake pressure involves the shuttering of the compressor (reduced ca­
pacity), whilst a high pressure involves operation at maximum power (maximum capacity).
1. Diaphgram valve
2. Pistons
3. Connecting rods
4. Connecting rod plate
5. Shaft
6. Pin
7. Arm
8. Slide
9. Guide
Operation
The operation is the same as described for the previous SANDEN 7V16 compressor.
Copyright by Fiat Auto 3

Auxiliary Units
Climate control
50
SPECIFICATIONS
TABLE SHOWING QUANTITIES OF OIL AND GAS FOR CLIMATE CONTROL SYSTEM
The table below summarizes the types of oil and the quantities of oil and coolant.
ENGINE TYPE COMPRESSOR TYPE OF
OIL
QUANTITY
OF OIL (cm3)
QUANTITY
OF GAS (g)
1596 16V HR V5 UNICON RL
488 265 600 ± 25
1998 20V SD6V12 SP10 135 600 ± 25
1910 JTD SD 7V16 SP10 135 600 ± 25
FOR ANYTHNING NOT DEALT WITH,
REFER TO THE BASIC MANUAL, ASSEMBLY 50.
Marea-Marea Weekend
2000 range ©
4 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

Marea- Marea Weekend
2000 range ©
Electrical equipment
Protection and security devices
55.
PROTECTION AND SAFETY DEVICES
All the vehicle supply lines were designed taking into account the most up-to-date directives in terms of
safety and protection, especially to prevent fires.
There are 2 types of protection:
- active protection, aims to reduce the causes of faults "at source"
- passive protection, aims to limit the effects of a fault as much as possible
The first category includes a carefully designed wiring layout with wires positioned and carefully anchored
on tracks that are repaired and protected if necessary.
The cables connected to the alternator and the motor were modified for this reason by adding protective
caps etc. A strengthened sheath was also introduced for some of the more exposed sections of wiring.
The passive protection includes all interventions to reduce faults due to high current (overload, short cir­
cuit).
All system fuses were rated based on the nominal absorbtion of the loads activated at the same time, to
ensure intervention in cases of a clear short circuit.
The introduction of a box containing 4 maxifuses with other fuses connected on the outside means all
the supplies can be protected except for the cable that connects the battery to the starter motor and the
cable that connects the starter motor to the recharging alternator. These cables are therefore protected by a
strengthened supplementary sheath.
In "MAXI" fusebox A:
EFI electronic injection fuse (petrol)
GLOW: plug fuse (diesel)
IGN: ignition switch fuse
J/B2 fuse master supply .
J/B1 fuse master supply
Next to the box.
B: fan fuse (see table)
C: ABS 60A fuse
D: second fan fuse: 40A (JTD)
115961 1998
iFil 30A IJ/B21 BOA
fiGNl 4OA IJTBTI BOA
1910JTD
IGLOWl 60A P7B21 80A
MGNI 40A IJ/Bll 80A
FUSE B
30A engine petrol without air conditioner
40A 1596 with air conditioning, JTD
50A 1998 wth air conditioning
Copyright by Fiat Auto 1

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
»F11=
~T~ II l;
•F9° |["^FT^1| °F10°ir°F13=
| ^14=- ir=F15«=- II
»F12=
SLHHItHia r i i i •
3F4= ir^F8=1l =F7="|| °F6 = 1
I I I I I 1 I '
14 5 4 12-
lor
1-11-J
I 1
J 7_
a o_o o_o OLD n.
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