FIAT MAREA 2001 1.G Workshop Manual
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 142 of 330
Electrical equipment Marea-Marea Weekend 
Location of components on the car 2000 range © 
55. 
LOCATION OF CONTROL UNITS AND DIAGNOSTIC SOCKETS (PASSENGER COMPARTMENT) 
P4f012LL01 
114 Air bag electronic contol unit 
131 Fiat-CODE electronic control unit 
238 Rear electric windows control unit 
244 Integrated services control system 
253 Air conditioner control unit 
267 Automatic transmission control unit 
333 Injection control unit (JTD) 
375 Standardized diagnostic socket 
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Page 143 of 330
Marea- Marea Weekend 
2000 range © 
Electrical equipment 
Control module 
55. 
The vehicle is fitted with numerous electronic 
control units which have autodiagnostic func
tions. 
When these control units are connected to di
agnostic equipment (Examiner or other in
struments) it is possible to read the autodiag
nostic information (parameters, errors) or carry 
out active diagnosis. 
On the version with EOBD (European On 
Board Diagnosis) which conforms to Directive 
98/69/CE (EURO 3), there is not an indi
vidual diagnostic socket for each control 
unit, but a single.- standardized 16-way 
diagnostic socket, on the left hand side of 
the dashboard, under the junction unit. 
The diagnostic equipment (Examiner or other instruments) is connected to it using a special adaptor 
known as "MPX 97". Using this adapator it is possible to select the system the autodiagnosis is going to 
be carried out on. 
Pin- out View of connector, cable entry side 
Pin System 
1 ABS 
2 N.C. 
3 Air Bag 
4 Power earth 
5 Signal earth 
6 N.C. 
7 Engine management and FIAT CODE 
8 N.C. 
9 Climate control 
10 N.C. 
11 Alarm 
12 N.C. 
13 N.C. 
14 N.C. 
15 Automatic transmission. 
16 Connector supply 
Copyright by Fiat Auto 13  
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  
Page 146 of 330
Electrical equipment 
Instrument panel 
Marea- Marea Weekend 
2000 range © 
55. 
Rear side (the connector sockets are shown) 
Connector A (on front lead) Connector B (on facia lead) 
Pin no. Cable colour Circuit involved 
1 BV EBD system failure 
2 BN Brake fluid level 
3 BR Brake pad wear 
4 CL Heater plugs (JTD) 
5 MN FIAT CODE 
6 LN Injection system failure (JTD) 
7 HN Battery recharging 
8 HG Engine oil minimum pressure 
9 LN EOBD (petrol only) 
10 RV ABS fault 
11 GN Reserve signal (petrol only) 
12 VB Speedometer signal 
13 AG +30 battery 
14 CN Speedometer generator power supply 
15 HB engine coolant temperature 
16 HL Outdoor temperature signal 
17S HM Speedometer signal 
18 L Rev counter signal 
(*) not connected in this version 
Pin no. Cable colour Circuit involved 
1 RG Left brake light failure 
2 RV Brake light switch 
3 RV Brake light switch 
4 C Air Bag system fault 
5 GV Water in diesel filter (JTD) 
6 M Seat belt 
7 -N.C. 
8 A Left turn signal 
9 AN Right turn signal 
10 -N.C. 
11 GN Side lights 
12 LB Main beam headlamps 
13 BN Handbrake on 
14 RN Right brake light failure 
15 H Doors open 
16 CN Boot open 
17S -N.C. 
18 GR Instrument panel light 
19 N Lighting earth 
20 HG Fuel level 
21 GL Outdoor temperature display 
22 R +15 from ignition 
23 N electronic earth 
24 -speedometer signal (*) 
25 VN Speedometer signal 
26 -speedometer signal (*) 
16 Print n° 506.763/23  
Page 147 of 330
Marea- Marea Weekend Electrical equipment 
2000 range (Q) Control module 
55. 
Front side 
1. Fuel reserve warning light 
2. Fuel level gauge 
3. Rev counter 
4. Direction indicators warning light 
5. Analogue speedometer and digital milo
meter 
6. Engine coolant temperature gauge 
7. Gears indicator for automatic transmis
sion 
Copyright by Fiat Auto 17  
Page 148 of 330
Electrical equipment 
Control module 
Marea- Marea Weekend 
2000 range © 
55. 
Rear side (the connector sockets are shown) 
Connector A Connector B 
N° Cable 
colour Circuit involved 
1 HN Generator (G) 
2 BN Brake fluid level (J) 
3 -Injection system failure (*) 
4 AG +30 
5 LN EOBD (E) 
6 -Not connected 
7 -Turbocharging (N) 
8 BR Brake pad wear (K) 
9 MN Fiat Code (L) 
10 -Heater plugs (*) 
11 -Not connected 
12 HG Minimum oil pressure (H) 
13 HM Speedometer signal 
14 HL Outside temperature signal 
15 CN Speedometer module supply 
16 L Rev counter signal 
17 HB Coolant temperature gauge 
18 -Not connected 
19 RV ABS failure (M) 
20 -Trailer lights (*) 
N° Cable 
colour Circuit involved 
1 LB Main beam headlamps (D) 
2 GR Instrument panel light 
3 GN Side lights (C) 
4 -Not connected 
5 BN Handbrake (J) 
6 M Seat belt (I) 
7 N Earth 
8 -Speedometer signal (*) 
9 VB Speedometer signal 
10 A Left turn signal 
11 AN Right turn signal 
12 -Not connected 
13 CA Automatic transmission (A) 
14 N Earth (electronic) 
15 GL Outside temperature switch 
16 HG Fuel level 
17 R + 15 
18 C Air Bag failure (B) 
19 GN Fuel reserve 
20 -Speedometer signal 
(*) not used 
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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