electronic control unit FIAT MAREA 2001 1.G Owner's Guide

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

Electrical equipment
Connector blocks
Marea- Marea Weekend
2000 range ©
55.
90 Switch signalling handbrake applied
BN 28A
92A Electric sun-roof lead connection
92A Electric sun-roof lead connection QC Connection between front cables/anti-
5,0 lock brakes A.B.S.
C244C
R28C
LN 375
QC Power fues protecting anti-lock brakes
00 A.B.S. 97 Electric headlamp washer pump
Rn.d. N9
RN 13
R 11
98 Headlamp washer intermittent function
N8A.
VN 127
1 00A Alarm electronic control unit
G 105A
102 Print n° 506.763/23

Marea- Marea Weekend
2000 range ©
Electrical system
Connector blocks
55.
1 00B Alarm electronic control unit
HG 70
HN 70
HR70
AR n.d.
1 05 Alarm deactivation switch
s
G 100A
GN 100A
NZ 100B
1 07A Door lock remote control receiver
CB28A ^ V28A
RN4G
C310F
A244C
B244C
1 08A Left rear door lock
G86
H86
1 06 Alarm switch on bonnet
N 100B
1 07 B Door lock remote control receiver
N 18
BL 244C
RN 4G
1 08C Left rear door lock
M 108C
N86
M 108C
HN 86
Copyright by Fiat Auto XII-00 - Supersedes previous version 103

Marea- Marea Weekend
2000 range ©
Electrical equipment
Connector blocks
55.
131 Fiat-CODE electronic control unit
J_ MN6A
JL RVn.d.
4 N55 N 193
1993 1596
JTD
JL GV190A G333A GV 195A 1998 JTD 1596
JL CBn.d.
1 32 Petrol vapours cut-out solenoid valve
1596 1998
4F1O9ML02
1 OA Connection between rear/driver's heated
' seat cables
1 Connection between rear/passenger
' heated seat cables
... my ... my
N 18 / N 18 /
4F109ML03 4F109ML04
1 36A 2# Detonation sensor
1998
G 190B
B 190B
Copyright by Fiat Auto 109

Electrical equipment
Connector blocks
Marea- Matea Weekend
2000 range ©
55.
1 86 Ignition coil (4°)
1998
M 148
Gn.d
G 190B
187 Ignition coil (5°) (1998)
1998
M 148
1 89 Phase transformer solenoid valve
Ln.d.
V190B
1 90A Injection/ignition electronic control unit (1998)
1998 3 GV131 22 GN6A 41 BN 127 57 V167
6 S 127 24 ZB 291 44 VB6A 59 SB 292
7 AN 291 25 A n.d 46 LN6A 62 AB 127
8 GN291 27 RN n.d. 47 Cn.d 63 H 167
9 B 127 30 BG 127 48 BVn.d
13 MG 127 31 G 127 50 AG 127
15 RV n.d. 32 BVn.d 53 BR 375
16 BVn.d 35 L6A 54 MN 167
21 VG376 40 HB291 56 ZN 291
32 16
48 64 49 33
1 90B Injection/ignition electronic control unit (1998)
1998 1 Gn.d. 17 Vn.d. 32 V184 52 L165A
2 G 141B 19 V162 33 Bn.d. 54 L136
3 G 165 20 V164 34 B 141A 55 L141
4 G 189 22 V136 35 B 163 58 L364
5 G 132 23 V 141A 36 B363 59 L223
6 G 136A 24 V364 38 B 136A 60 L 141B
10 G223 25 V334 40 B364
14 G 185 26 Vn.d. 42 B 168
15 G 186 28 V141B 49 Ln.d.
16 G 183 31 V187 51 L 168
32 16
48 64 49 33
118 Print n° 506.763/23

Marea- Marea Weekend
2000 range ®
Electrical equipment
Connector blocks
55.
1 93 Earth for electronic injection
1998
N375
N 195A N 195A
N 131
N 375
Nn.d.
1 94 Injection/injector braid lead connection
1596
1 95A Injection/ignition electronic control unit (1596)
1596 1
2
4
5
9
12
13
14
15
16
N 141A
NZ 141B
L6A
V252 0
LN 141A
R 141B
GV131
AB 127
SB 150
GN 252 @
20
21
23
23
24
25
25
26
27
28
L141A
BN 127
GN6A
GN70 0
B 141B
BR n.d. 0
BR 375
LN 6A
N 193
N 193
29
35
36
40
41
44
46
47
48
49
RN n.d.
B 127
LR252 0
AG 127
MG 127
Vn.d.
BG 268 0
Cn.d.
S127
NZ252 @
29 28 i 41 52
I I I I I I I I I T" r' ill > i i i i i i i I i i i J '/\\ \ i \ \ \ i 1—171
1 95B Injection/ignition electronic control unti (1596)
1596 53 R144 65 VB 138
54 N n.d. 66 LR155
55 ZB 278 67 B 144
56 L136 68 V278
57 C 138 69 B 168
58 HN 138 70 Z136
59 GN 155 71 HG194
60 S146 72 HL194
62 SN 339 75 RN278
64 GR138 76 BR 146
77
78
79
NZn.d.
HM 194
HV194 74
67^lTr E i i i i dj1-T^T- 1 1 1 1 izr
^ JJ—CZ3ZI 1 1 1 1 -j 60 ^1,1 I I I I I 11
80 73
d3k
53 59
Li
66
Copyright by Fiat Auto 119

Electrical equipment
Connector blocks
Marea-Marea Weekend
2000 range ©
55.
pep Connection between automatic trans¬
mission and engine cables
NZ 195A
V 195A
LR 195A
GN 195A
253B Air conditioner control unit
S 120B H254
NZ n.d.
N255A
G256
L256
[§]VG 120B
Rn.d
HN 256
Z211i§]
B 120B
RG 255A
CB 120B M209
AR209
253A Air conditioner control unit
CB n.d
VG n.d. Zn.d.
Rn.d.
BL n.d.
254 Climate control system controls with
passenger compartment temperature
B n.d..
H 253B.
HN n.d.
N n.d. .
Rn.d.
gZn.d
L253A
_ BN n.d.
RN n.d.
255 Electronic speed governor for climate control fan
N253B
AN n.d.
B
N206
Hn.d.
RG 253B
256 Mixture air control actuator
HN 253B
N n.d.
L253B
BL n.d.
G 253B i§]
124 Print n° 506.763/23

nent
Key
55.
Component key
1 Left front light cluster
2 Right front light cluster
3 Power fusebox
4 Junction unit
5 Dipped headlamps relay feed
6 Instrument panel
7 Steering column switch unit
8 Left front earth
9 Right front earth
10 Engine battery earth
10A Bodyshell battery earth
11 Battery
12 Ignition switch
13 Connection between right/left front cables
14 Left number plate light bulb
15 Right number plate light bulb
16 Left rear light cluster
17S Right rear light cluster
18 Left rear earth
19 Right rear earth
20 Left front side direction indicator
21 Right front side direction indicator
22 Left facia earth
23 Hazard warning lights switch unit
24 Windscreen wiper motor
25 Electric windscreen/rearscreen washer pump
26 Windscreen wiper motor
28 Connection between dashboard/rear cables
29 Connection between front/fog light cables
30 Left fog light
31 Right fog light
32 Fog lamp control relay
34 Switch control panel
35 Connection between dashboard/left front
door cables
36 Connection between dashboard/right front
door cables
39 Heated rear windscreen
40 Brake lights control switch
41 Additional brake light
42 Right dashborad earth
43 Left headlamp alignment corrector actuator
44 Right headlamp alignment corrector actuaor
45 Headlamp alignment control unit
46 Left low tone horn
47 Right high tone horn
48 Radio receiver with clock
49 Left front tweeter speaker
50 Right front tweeter speaker
52 Speaker in right front door
53 Left rear speaker
54 Right rear speaker
55 Front/engine lead connection
56 Fuel gauge unit
57 Inertia switch
58 Control panel light dimmer
64 Glove compartment light bulb with built in
switch
65 Luggage compartment light
66 Electrically-adjustable door mirror contro
buttons
67 Left door mirror
68 Right door mirror
69 Cigar lighter
70 Connection between dashborad/front ca­
bles
73 Pushbutton unit for front electric windows
on left arm-rest
74 Pushbutton unit for right front electric win­
dows on right arm-rest
76 Left front electric window motor
77 Right front electric window motor
78 Pushbutton unit for rear electric windows
on left front door
80 Rear electric window inhibition switch
82 Pushbutton unit for left rear electric win
dows on left front door
83 Pushbutton unit for right rear electric win­
dows on right rear door
84 Left rear electric window motor
85 Right rear electric window motor
86 Connection between rear/left rear door ca
bles
87 Connection between rear/right rear doo
cables
88 Insufficient brake fluid level sensor
89A Left brake pad wear sensor cable connec
tion
90 Switch signalling handbrake applied
92A Electric sun-roof lead connection
93A Electric sun roof control unit
95 Connection between front/anti-lock brake;
A.B.S. cables
96 Power fuse for anti-lock brakes A.B.S.
97 Electric headlamp washer pump
98 Headlamp washer intermittence
100 Alarm electronic control unit
105 Alarm deactivation switch
106 Alarm switch on engine bonnet
107A Door remote control receiver
107B Vehicle interior front courtesy light
108 Left rear central locking
109 Right rear central locking
110 Left front central locking
111 Right front central locking
114 Air bag electronic contol unit
115 Passenger Air Bag
116 Driver's Air Bag
117 Air Bag/facia cables connection
120 Connection for air conditioning unit cables
121 Three stage pressure switch
122 Engine cooling fan low speed relay
122 Engine cooling fan low speed relay
123 Engine cooling fan high speed relay feed
124 Air condiitoning compressor control relay
127 Connection between front left cable/cabli
on relay holder bracket
141

A
21
128 Connection between front/radiator cables
129 Engine cooling fan protection power fuse
129A Power fuse protecting engine cooling fan
no.2
131 Fiat-CODE electronic control unit
132 Petrol vapours cut-out solenoid valve
134 Connection between rear/heated driver's
seat cables
135 Connection between rear/heated passenger
seat cables
136 Detonation sensor
136A 2nd Detonation sensor
137 Vehicle speed sensor
138 Idle adjustment actuator
139 Tester socket for injection system
141A Heated Lambda sensor (upstream of cat.)
141B Heated Lambda sensor (downstream of
cat.)
142 Switch signalling insufficient engine oil
pressure
143 Alternator
144 Rev and TDC sensor
145 Starter motor
146 Throttle valve potentiometer
147 Compressor for air conditioning
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
152A Fuse protecting injection system
152B Fuse protecting injection system
154 Engine cooling fan
155 Ignition coil unit
156 Spark plugs
159 Reversing lights control switch
162 Injector (1)
163 Injector (2)
164 Injector (3)
165 Injector (4)
165A Injector (5) (1998)
166 Idle adjustment actuator
167 Air flow meter
168 Timing sensor
170 Resistance for engine cooling fan
174 Power earth for A.B.S.
177 Sensor on left front wheel for A.B.S.
178 Sensor on left rear wheel for A.B.S.
179 Sensor on right front wheel for A.B.S.
180 Sensor on right rear wheel for A.B.S.
181 A.B.S. hydraulic control unit
182A Right brake pad wear sensor cable connec­
tion
183 Ignition coil (1°)
184 Ignition coil (2°)
185 Ignition coil (3°)
186 Ignition coil (4°)
187 Ignition coil (5°) (1998)
189 Variable valve timing
190 Injection/ignition electronic control unit
(1998)
193 Earth for electronic injection
194 Injection/injector braid lead connection
195 Injection/ignition electronic control unit
(1596)
199 FIAT CODE aerial
201 Heaer plugs control unit
202 Heater/air conditioning unit symbol lighting
bulbs
206 Car interior climate control fan
209 Intake air flap control actuator
211 Frost sensor
222 Climate control system earth
223 RPM sensor
228 Heater plugs (TD)
231 Clock spring connector
236 Connection betwen rear lead and tail-gate
238 Rear electric windows control unit
239 Connection between Air Bag/left preten­
sioner cables
240 Connection between Air Bag/right preten­
sioner cables
241 Left pretensioner
242 Right pretensioner
243 Luggage compartment light button
244 Integrated services control system
245 Rear courtesy light
248 Radio controls on steering wheel
252 Connection between automatic transmis­
sion/engine cables
253 Air conditioner control unit
254 Climate control system controls with pas­
senger compartment temperature sensor
255 Electronic speed governor for climate con­
trol fan
256 Air mixture control actuator
257 Fuel pump relay feed
258 Treated air temperature sensor
259 Required temperature adjustment switch
260 MAX-DEF microswitch
261 Tailgate locking/unlocking actuator
262 Seat belts warning light switch
264 Left rear vehicle interior courtesy light
265 Right rear vehicle interior courtesy light
267 Automatic transmission control unit
268 Connection between automatic transmis­
sion/front cables
269 Connection between automatic transmis­
sion/dashboard cables
270 Connection between automatic transmis­
sion/rear cables
271 Kick-down switch
272 Ignition switch solenoid
273 Automatic transmission system protective
fuse
Co