2001 FIAT MAREA electronic control unit

Electrical equipment
Component location
Marea- Marea Weekend
2000 range ©
Climate control unit/heater with thermostatic control (1998)
Component key
] 3 Power fusebox
4 Junction unit
6 Instrument panel
10 Engine battery earth
11 Battery
12 Ignition switch
28 Connection between facia/rear cables
34 Switch control unit
36 Connection between dashboard/right
front door cables
55 Connection between front/engine cables
68 Right door mirror
70 Connection between dashborad/front ca­
bles
120 Connection for air conditioning unit ca­
bles
124 Air condiitoning compressor control relay
127 Connection between front left cable/cable
on relay holder bracket
147 Air conditioner compressor
190 Injection/ignition electronic control unit
(1998)
202 Heater/air conditioner unit control symbol
lighting bulbs
206 Climate control system fan
207 Fan speed adjustment selector
209 Air intake flap control actuator
211 Frost sensor
222 Earth for air conditioning system
244 Integrated services control system
253 Air conditioner control unit
254 Climate control system controls with inte­
rior temperature sensor
255 Electronic speed variator for climate control
fan
256 Air mixing control actuator
258 Treated air temperature sensor
259 Required temperature adjustment solenoid
260 MAX-DEF microswitch
365 4-stage pressure switch
375 Standardized diagnostic socket
55.
36 Connection between dashboard/right front door cables
* S 28B.
HG 310D
GN 244A
Z28B
N 19.
A n.d.
AG n.d.
B310E.
MN n.d
LR66
BN 111B
HV66
1 20 Connection for air conditioning unit cables
* Z 28B.
*N22.
'AN 70 _
*RN70
'BN 70
AR28A
GN310A*
. Zn.d.
1 27 Connection between front left cable/cable on relay holder bracket
1998
A1 Rn.d. B1 MB 4C A2 RN 13 B2 AN n.d. * A3 BG 190A B3 MG 190A* A4 AB 190A B4 S190A* A5 AG 190A B5 VN3A A6 M3A* B6 B 190A A7 MN 55* B7 VG70* A8 Cn.d. B8 Rn.d.
C2
C3
C4
C5
C6
C7
BN190A B1
HLn.d. C1
SG n.d.
HRn.d.
AR n.d.
G 190A
A1 Rn.d. B4 S365* 0 A2 RN 98 B5 VN 98 A3 BV151 B6 B365 A4 AB123 @ VG 365' A5 AG 122 @ B8 R 150 A6 M 124* C2 BN 365 A7 MN 124* C3 HL98 A8 Cn.d. C4 SG98 B1 MB 151 C5 HR 152A B2 AN 124 * C6 AR152B B3 MG 124* C7 G 150
The cables involved in the wiring diagram are marked with an asterisk.
56 Print n° 506.763/23

Electrical equipment
Component location
Marea-Marea Weekend
2000 range ©
Version with climate control
Engine cooling (1596)
Component key
3 Power fusebox
8 Left front earth
10 Engine battery earth
11 Battery
12 Ignition switch
122 Engine cooling fan low speed relay feed
123 Engine cooling fan high speed relay feed
127 Connection between left front cable/cable
on relay holder bracket
129 Engine cooling fan protection power fuse
154 Engine cooling fan
170 Resistance for engine cooling fan
195 Injection/ignition electronic control unit
(1596)
365 4-stage pressure switch
55.
3A Power fusebox
CA95
R n.d.
M n.d.
C n.d
AR n.d.
.C n.d.
fC n.d M n.d.
1 22 Engine cooling fan low speed relay
' N 8A
'L170
C n.d. *
.AG 127"
1 23 Engine cooling fan high speed relay
'AB127
N8A.
'Cn.d.
M n.d.
1 27 Connection between front left cable/cable on relay holder bracket
1596
A2
A4
A5
A6
A7
RN 13
AB195A*
AG195A'
M3A
MN 13
AN n.d.
_§L MG 195A
Ji. s 195A
_§5_ VN3A
HL C n.d. *
B6
B7
C2
C3
B 195A*
VG70
BN 195A'
HL n.d.
HL RN 98
HLAV\2Z<\§
A5
J*L AN 124 g*j
_§!L MG 124 g£]
_JlS365 g»]
AG 122*
HL M 124 git]
HL MN 124 gf]
B5
B6
VN98
B365*
A8 Cn.d.
J?7_ VG 365 g*]
BN 365
SG n.d.
C3
C4
HL98
SG 98
4F060ML05
* The cables involved in the wiring diagram are marked with an asterisk.
60 Print n° 506.763/23

Electrical equipment
Component location
Marea- Marea Weekend
2000 range ©
55.
Version with climate control
Engine cooling ( 1998 engine)
Component key
3 Power fusebox
8 Left front earth
10 Engine battery earth
11 Battery
12 Ignition switch
22 Left facia earth
122 Engine cooling fan low speed relay feed
123 Engine cooling fan high speed relay feed
127 Connection between front left cable/cable
on relay holder bracket
129 Engine cooling fan protection power fuse
154 Engine cooling fan
170 Resistance for engine cooling fan
190 Injection/ignition electronic control unit
(1998)
365 4-stage pressure switch
3A Power fusebox
CA95
R n.d.
M n.d.
AR n.d.
C n.d. .C n.d.
*C n.d M n.d.
1 22 Engine cooling fan low speed relay
' N 8A
' L128B.
Cn.d.
AG 127'
1 23 Engine cooling fan high speed relay
*AB 127
' N8A.
' C n.d.
Mn.d.
1 27 Connection between front left cable/cable on relay holder bracket
1998
HL Rn.d.
HL RN 13
HL BG;490A
HL AB 190A*
HL AG 190A*
HL M 3A
HLMN55
HL C n.d. *
B1
B2
B3
B4
MB 4C
AN n.d.
MG 190A
S 190A
J?5_ VN 3A
_§L B 190A*
_§Z_VG70
_§§_ R n.d.
A8 u-o^vj^
C8
_Pi_ BN190A*
_2L HLn.d.
SL SG n.d.
_25_ HRn.d.
_PJL AR n.d.
J5L G 190A
A1 Rn.d. B4 S365 A2 RN 98 B5 VN 98 A3 BV151 B6 B365* 1*1 A4 AB 123 *[# _B7_ VG 365 A5 AG 122* B8 R150
HL M 124 C2 BN 365 * A7 MN 124 1*1 C3 HL98 A8 C n.d. * C4 SG 98 B1 MB 151 C5 HR152A B2 AN 124 C6 AR152B B3 MG 124 C7 G 150
4F064ML05
The cables involved in the wiring diagram are marked with an asterisk.
64 Print n° 506.763/23

Electrical equipment
Component location
Marea-Marea Weekend
2000 range ©
Version without climate control
Engine cooling ( petrol engine)
Component key
3 Power fusebox
8 Left front earth
10 Engine battery earth
11 Battery
12 Ignition switch
122 Engine cooling fan low speed relay
127 Connection between front left cable/cable
on relay holder bracket
129 Engine cooling fan protection power fuse
154 Engine cooling fan
190 Injection/ignition electronic control unit
(1998)
195 Ignition/ injection control unit (1596)
55.
1 27 Connection between front left cable/cable on relay holder bracket
1998
Rn.d.
HL RN 13
HL BG 190A
HL AB 190A
HL AG 190A*
HL M 3A
HL MN 55
HL C n.d. *
B1 MB4C
JSfL AN n.d.
_§5_ MG 190A
_§£. S 190A
65 VN3A
66 B190A
_§Z_ VG70
_JL R n.d.
C8
_2L BN190A
_2LHLn.d. C1
_PJ_ SG n.d.
_PiL HRn.d.
_2§- AR n.d.
_2L G 190A
A1 Rn.d. B4 S365 A2 RN98 B5 VN98 A3 BV151 B6 B365 A4 AB 123 VG365 A5 AG 122* B8 R150 A6 M 124 # C2 BN 365 A7 MN 124 C3 HL98
HL C n.d. * C4 SG 98 B1 MB 151 C5 HR152A B2 AN 124 C6 AR152B B3 MG 124 $ C7 G 150
1 27 Connection between front left cable/cable on relay holder bracket
1596
HL RN 13
HL AB 195A
HL AG 195A*
J^MSA
HL MN 13
HL C n.d. *
_§L AN n.d.
_§L MG 195A
_§±. S 195A
_§5_VN3A
B 195A
_§Z_VG70
_Pi_ BN 195A
_9L HLn.d.
_P± SG n.d.
A2 RN 98
_A4_AV123 g]
_A5_ AG 122 *
A6 M 124 ~_
HL MN 124 [§
_AL C n.d. *
AN 124 [§]
_§L MG 124 gt]
J1S365 g]
B5 VN98
_§§_ B 365 g]
-IL VG 365 g|
SL BN 365 [$]
HL98
SL. SG 98
1 29 Power fuse protecting engine coling fan
'R154
1 54 Engine cooling fan
*M 122
*R129
The cables involved in the wiring diagram are marked with an asterisk.
66 Print n° 506.763/23

Electrical equipment
Component location
Marea-Marea Weekend
2000 range ©
55.
Starting - Electronic ignition and injection - Recharging and warning light
light - Injection system failure warning light - Rev counter (1596)
Insufficient engine oil pressure warning
Component key
3 Power fusebox
4 Junction unit:
6 Instrument panel
8 Left front earth
10 Engine battery earth
12 Ignition switch
18 Left rear earth
2 Left facia earth
55 Front/engine lead connection
56 Fuel level gauge control unit
57 Inertia switch
70 Connection between dashborad/front
cables
132 Petrol vapour cut out solenoid valve
136 Knock sensor
138 Idle adjustment actuator
141A Heated Lambda sensor (upstream of
cat.)
141 B Heated Lambda sensor (downstream of
cat.)
143 Alternator
144 Rpm and TDC sensor
145 Starter motor
146 Potentiometer on throttle valve
150 Injection system relay feed
152 Fuse protecting injection system
155 Ignition coil unit
156 Spark plugs
162 Injector (1st)
163 Injector (2nd)
164 Injector (3rd)
165 Injector (4th)
168 Timing sensor
193 Earth for electronic injection
194 Injection lead/injector braid connection
195 Ignition/ injection control unit (1596)
334 Dual engine temperature sender unit
373 Air pressure and temperature sensor
375 Standardized diagnostic socket
55 Front/engine lead connection
1596
CN6A.
HG6A.
* HN 6A
1 CN n.d.
MB6A.
NZ8_
* ZB n.d
*RG195A_
HM6A
CN n.d. HN 143 *
HG 142
1 95A Injection/ignition electronic control unit (1596)
1596 1 N 141A* 20 L 141A* 29 RN n.d. *
2 NZ141B* 21 BN 127 35 B 127
4 L6A* 23 GN 6A* 36 LR252 [c*
5 V252 0 23 GN70 0 40 AG 127
9 LN 141A* 24 B141B* 41 MG 127
12 R 141B* 25 BR n.d. 0 44 Vn.d.*
13 GV131 25 BR 375 * 46 BG 268 [a
14 AB 127 26 LN6A* 47 C n.d. *
15 SB 150* 27 N 193* 48 S 127
16 GN 252 [cal 28 N 193* 49 NZ252
27 282,9 41 52
O I I I I I I -r-r-r'n , , r'l -r-
rrrri '/ 1 1 1 1 1 1 1 1 1 1 1 \1 L/-HJ 'A i I I i i ,I
40
1 95B Injection/ignition electronic control unit (1596)
1596 53 R144* 65 VB 138* JL. NZn.d. *
54 N n.d. * 66 LR 155 * _ZL HM194*
55 ZB 278 * 67 B 144* _7JL HV194*
56 L136* 68 V278*
57 C138* 69 B 168*
58 HN 138* 70 Z136*
59 GN 155 * 71 HG 194 *
60 S 146* 72 HL194*
62 SN 339 * 75 RN 278 *
64 GR138* 76 BR 146 *
74
67-Jf Mill i i r r-l I I I
60-
IE
L -j |l
53 59
The cables involved in the wiring diagram are marked with an asterisk.
70 Print n° 506.763/23

Electrical equipment
Component location
Marea-Marea Weekend
2000 range ®
Starting - Electronic ignition and injection - Recharging and warning light
light- Injection system failure warning ilight - Rev counter (1998)
Insufficient engine oil pressure warning
Component key
3 Power fusebox
4 Junction unit
6 Instrument panel
8 Left front earth
10 Engine battery earth
12 Ignition switch
18 Left rear earth
22 Left facia earth
40 Brake lights control switch
55 Connection between front/engine cables
57 Inertia switch
70 Connection between dashborad/front
cables
68 Right door mirror
70 Connection between dashborad/front
cables
127 Connection between front left cable/ca­
ble on relay holder bracket
132 Petrol vapour cut out solenoid valve
136 Knock sensor
141A Heated Lambda sensor (upstream of cat.)
141 B Heated Lambda sensor (downstream of
cat.)
143 Alternator
145 Starter motor
148 Earth for electronic injection
150 Injection system relay feed
151 Relay feed for Lambda sensor, electric
fuel pump, injectors
152 Fuse protecting injection system
162 Injector (1st)
163 Injector (2nd)
164 Injector (3rd)
165 Injector (4th)
167 Air flow meter
168 Timing sensor
184 Ignition coils (2nd)
185 Ignition coils (3rd)
186 Ignition coils (4th)
187 Ignition coils (5th) (1998)
189 Variable valve timing
193 I.E. control unit earth
223 Rpm sensors
291 Potentiometer on accelerator pedal
292 Clutch pedal switch
296 Accelerator control lever potentiometer
334 Dual engine temperature sender unit
363 Variable valve timing actuator (998)
364 Motorized throttle body
375 Standardized diagnostic socket
376 Acceleration sensor
55.
55 Front/engine lead connection
1998
* BV n.d
MN 127
' HN 6A
* AR n.d
1 27 Connection between front left cable/cable on relay holder bracket
1998
A1 R n.d.'
HL RN 13
HL BG 190A
A4 AB 190A
HL AG 190A
A6 M3A
HL MN55
HL C n.d. *
J*L MB 4C *
J*L AN n.d.
_§§_ MG 190A
_§£. S 190A
VN3A
66 B190A
_§7_ VG70
R n.d.
C2 BN190A
_2L HL n.d.
C4_ SG n.d.
C5 HRn.fi.'
C6 AR n.d. *
_5L G 190A
A1 R n.d. * B4 S365
HL RN98 B5 VN 98 A3 BV 151 * B6 B365 A4 AB 123 J7_ VG365 J*I
HL AG 122 B8 R 150 A6 M 124 C2 BN365 A7 MN 124 C3 HL98 A8 Cn.d.* C4 SG 98 B1 MB 151 * C5 HR152A* B2 AN 124 C6 AR 152B *
B3 MG 124 C7 G 150*
1 90A Injection/ignition electronic control unit (1998)
1998 3 GV131 22 GN6A 41 BN 127 57 V 167*
6 S 127 24 ZB 291 * 44 VB6A* 59 SB 292 *
7 AN 291 * 25 A n.d* 46 LN6A* 62 AB 127
"U 8 GN 291 * 27 RN n.d. * 47 Cn.d* 63 H 167* "U
9 B 127 30 BG 127 * 48 BV n.d *
13 MG 127 31 G 127* 50 AG 127
15 RV n.d. * 32 BV n.d * 53 BR 375 *
16 BV n.d * 35 L6A* 54 MN 167 *
21 VG376 40 HB 291 * 56 ZN 291 *
32 16
49 33
1 90B Injection/ignition electronic control unit (1998)
1998 1 G n.d. * 17 V n.d. * 32 V184* 52 L165A*
2 G 141B* 19 V162* 33 B n.d. * 54 L 136*
3 G 165* 20 V164* 34 B 141A* 55 L 141 *
4 G 189* 22 V136* 35 B 163* 58 L364*
5 G 132* 23 V141A* 36 B363* 59 L223*
6 G 136A* 24 V364* 38 B 136A*. 60 L141B*
10 G223* 25 V334* 40 B364*
14 G 185* 26 V n.d. * 42 B 168*
15 G 186* 28 V 141B* 49 L n.d. *
16 G 183* 31 V187* 51 L 168*
49 33
* The cables involved in the wiring diagram are marked with an asterisk.
72 Print n° 506.763/23

Electrical equipment
Component location
Marea-Marea Weekend
2000 range ©
55.
Starting - Electronic injection - Recharging and warning light - Low engine oil pressure warning
warning light - Injection system failure warning light - Fuel preheating (1910 JTD)
ight - Heater plugs
Component key
3 Power fusebox
4 Junction unit
6 Instrument panel
8 Left front earth
10 Engine battery earth
12 Ignition switch
18 Left rear earth
22 Left facia earth
40 Brake lights control switch
55 Front/engine lead connection
56 Fuel level gauge control unit
57 Inertia switch
70 Connection between dashborad/front ca­
bles
127 Connection between front left ca­
ble/cable on relay holder bracket
143 Alternator
144 Rpm and TDC sensor
145 Starter motor
150 Injection system relay feed
151 Relay feed for Lambda sensor, electric
fuel pump, injectors
152 Fuse protecting injection system
167 Air flow meter (debimeter)
168 Timing sensor
193 I.E. control unit earth
201 Heater plugs control unit
228 Heater plugs (TD)
289 Thermal contact (PCT)
290 Heater coil (PCT)
291 Potentiometer on accelerator pedal
292 Clutch pedal switch
303 Diesel preheating protection fuse
304 Diesel preheating protection relay
333 Injection control unit (JTD)
334 Dual engine temperature sender unit
336 Injector 1 cyl (JTD)
337 Injector 2. cyl (JTD)
338 Injector 3. cyl (JTD)
339 Injector 4. cyl (JTD)
341 Fuel pressure regulator (JTD)
342 Fuel pressure sensor (JTD)
343 Turbo pressure sensor (JTD)
344 I.E. protective fuse (JTD)
334B I.E. protective fuse (JTD)
345 Fuel temperature sensor (JTD)
375 Standardized diagnostic socket
377 Variable geometry solenoid valve
378 Throttle adjustment solenoid valve
379 EGR solenoid valve
333A Injection control unit (JTD)
JTD 1 N n.d. * 16 BV55* 48 BR 375 76 ZB 291 *
2 N n.d. * 17 CR 377 * 49 VB6A* 77 GN 291 *
3 N n.d. * 18 MG 127 51 BN 127 78 ZN 291 * A 4 Rn.d.* 19 AB 127 52 B 127 79 A 291 *
5 RN n.d. * 20 AG 127 58 CB n.d. * 80 MB 291 * ,
11 GV131 21 LN6A 59 LRn.d. * 81 AN 291 * ' >
13 SB 150 22 RV201B* 60 S 127
14 CL6A 24 SN 151 * 61 BL 292 * 1
15 BG55* 47 Ln.d. * 62 NZ 201B*
5 43 24
-o
T7
2 62 81
oooooooooooooooooc oooooooooooooooooc
oooooooooooooooooc oooooooooooooooooc
~7
63 44
333B Injection control unit (JTD)
JTD 82 SN55* 92 H342* 103 L168* 120 V337*
83 S55* 93 LR 343* 104 C 168* 121 MV 338 *
84 BN 334 * 94 HM 343 * 108 CB 341 *
85 LN 334 * 95 HN 343 * 109 HB 341 *
86 G 167* 97 CN 167* 111 MB 55*
88 NZ167* 99 R144* 114 VB 339 *
89 HR167* 100 B 144* 117 VN n.d. *
90 LG 342 * 101 N 144* 118 NVn.d. *
91 HV 342 * 102 BV168* 119 NL 336 *
114
AA 115 117
116.
89 97 82 90
oooooc OOOOOOG OOOOOOO 'OOOOOC
119113105106 98
* The cables involved in the wiring diagram are marked with an asterisk.
74 Print n° 506.763/23

Electrical equipment
Component location
Marea-Matea Weekend
2000 range ©
STANDARDIZED DIAGNOSTIC SOCKET CONNECTIONS
COMPONENT KEY
3
4
8
10
11
70
100
114
117
120A
181
190
193
195
253
267
268
333
375
Power fusebox
Junction unit
Left front earth
Engine battery earth
Battery
Connection between dashborad/front
cables
lock brakes A.B.S.
Alarm electronic control unit
Air bag electronic contol unit
Airbag/facia lead connections
Connection for air conditioning unit ca­
bles
A.B.S. electro-hydraulic control unit
Injection/ignition electronic control
(1998)
I.E. control unti earth
Injection/ignition electronic control
(1596)
Climate control system control unit
Automatic transmission control unit
Connection between automatic trans­
mission/front cables
I.E. control unit (JTD)
Standardized diagnostic socket
unit
unit
55.
70 Connection between dashborad/front cables
A1
A2 RN4C B1 C1 — M29 — AN4C B2 C2 — HR100B C3 AG n.d.* — HN 100B B4 C4 — LN100B — HG100B B5 C5 — CB100A — BN375* — HV 100B A6 B6 C7 — S100B — B375* — GV335 A7 B8 C8 — V100A — MNn.d. — RB 307 A8 C8 — N 8 — GN 195A
— VG 127 — V 328 A3 B3 — H100B — A4 — HL6A A5
A1 — RN120 A2 — VG120 A3 — H6B A4 — HL120 A5 — CB28A A6 — Rn.d. A7 — A34A A8 — N312
B1 C1 — M 310C — AN 120 B2 — V28A B3 — AG4I* B4 — AB4I B5 — BN120" B6 — B117* B7 — AN 120 B8 — RN315
C2 — HR28B C3 — HN28B C4 — HG28B C5 — HV28B C7 I — GV6B | JTD C8 — RB 312 TAXI C8 —I — GN6BQ
9B Connection between front cables/anti-lock brakes A.B.S.
* LN 375
BN n.d
CA3A
*CN 181
117 Connection between Air Bag/dashboard cables
Rn.d.
375 Standardized diagnostic socket
*BV100A
* BN 70
'LN95
The cables involved in the wiring diagram are marked with an asterisk.
78 Print n° 506.763/23