Page 421 of 933
AIR CONDITIONING
62
62 - 14
Correct AC system
filling.
Compressor does not work.
Ye s
Ye s No Ye s
Check the clutch coil. Damaged,
short-circuit?
Replace the
compressor.Restore the electric circuit
between E and clutch.
Is + 12 V at pol e E 5 of E relay?
Is + 12 V at pole E3 of E relay?
Is + 12 V at pole E3 of E relay?
Check fuse S6 from engine
compartment. Restore the
wiring between S6 and relay E.
No
Restore the wiring between pole
E1 of E relay a nd pole D5 of D
relay.
No
The wiring between injection
computer
and the pole E2 of E re lay is broken ?
Ye s
Repair the wiring.
Ye s
No
Check the pressure
controller electric circuit.
Injection computer does not receive
AC actuation?Yes
Check the switch electric circuit.
Pressure controller is working?
No
Replace the switch.
AC control switch is
working ?No
Ye s
Ye s
Check the pressure controller
electric circuit.
No
Replace the pressure controller.
No
DIAGNOSIS
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Page 529 of 933
83
INSTRUMENT PANEL
OIL PRESSURE WARNING LIGHT STILL ON
AFTER ENGINE STARTING
Check the oil pressure
The pressure is correct.
Replace the oil pressure switch. The pressure is not correct.
There is a failure in the oil circuit.
OIL PRESSURE WARNING LIGHT IS NOT ON
WHEN CONTACT SWITCH ON
Place the wire from the oil pressure switch to the ground.
Wa r ning light is not on.
Check if the bulb is not burnt.
Warning light is on. Replace the oil pressure
switch.
Burnt bulb. Replace it. Bulb is not burnt . Check the bulb
supply wiring and fix it.
FUEL LEVEL INDICATOR
SHOWING ALWAYS FULL
Disconnect the connection wire t o the probe.
The indicator comes back
to zero. Re place the probe. The indicator
does not come to zero.Is there
any ground short-circuit of the connection
wi re to the probe?
Yes. Fix the wiring layout. No. Replace the indicator.
83-7
DIAGNOSTIC
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Page 558 of 933

89A
ELECTRICAL DIAGRAMS
89A - 6
PA
RTICULARITIES REGARDING THE CONNECTORS
DISCONNECTING METHOD
Because this vehicle is equipped with electronics systems controlling and checking different
functions, it is necessary the execution of the electric connection by means of some connectors
provided with securing de vices after coupling performing. Due t o this reason, i n c ase t heir
disconnecting is necessary, proceed observing the following observations:
- connectors for: ignition coil (pos.1), canister purging valve (pos.2), AC pressure sensor (pos.3),
atmospheric pre ssure sensor(pos.4), siren(pos.4), step-by-step engine (pos.5), valve potentiometer
(p os.6), cooling blower (pos.7) are to be disconnected after easy pulling the locking clamp in the
di rection shown by the arrow.
- the connectors for: RPM sensor (pos.8), front hood contact (pos.9) are to be disconnected
after easy pulling the locking clamp (A) in the arrow direction, for unlocking.
pos. 8
A
pos. 9
A
pos. 1pos. 2pos. 3
pos. 5 pos. 6
pos. 7pos. 4
C
B
A
pos.10
GENERALITIES
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Page 568 of 933

89A
ELECTRICAL DIAGRAMS
89A - 16
Windscreen wiper timer
FLASH relay
Climate control lighting
AC starting button
AC relay ( on board)
Right front door actuator
Right rear door actuator
Right front door loud speaker
Right rear loudspeaker
Fuel level transmitt er and electric pump
Trunk lighting la mp
Left rear loud speaker
Left rear door actuator
Left fron t door actuator
Left fr ont door loud speaker
Right front door contact
Right volumetric sensor
Left vo lumetric sensor
Right front ceiling lamp
Hatchb ack contacts
Handbrake contact
Anti-starting bushing
Le ft front ceiling lamp
Anti-intrusion indicator LED
Left fron t door contact
UCE d ecoder
Siren
Vehicle speed transducer
Engine hood contact
Doors closing switch
UCE anti-intrusion
( until 01.06.2001)
Inje ctor 1
Inje ctor 2
Inje ctor 3
Inje ctor 4
Atmospheric pressure sensor
Detonation sensor
Starter
In jection air temperature sensor
Valve potentiometer
Step-by step engine
Alternator
Ignition c oil
Canister purging valve
AC pressure sensor(pressure controller)
Diagnostic socket
AC compressor clutch
Upstream oxygen sensor
Cooling blower and AC
Blower resistance for AC
Oil pressure contact
Injec tion computer
RPM sensor
Reverse driving contact
AC compressor clutch control relay (E)
Water temperature sensor
Blower lower speed control relay (B)
E ngine compartment fuse and relays box
Motor fan control relay ( C)
Fog headlamps control relay(A)
Fuel pump control relay (H)
Actuators relay(D)
Chock sensor
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32 33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
LOCATION OF ELECTRIC COUPLING ON THE VEHICLE
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Page 574 of 933
89A
ELECTRICAL DIAGRAMS
89A - 22
The fuse box placed in the engine compartment is attached in front of the left shock absorber
column and contains relays and fusible protecting the following electric circuits:
A.
for equipping E1, E2
( until 01.06.2001)
RELAY
RELAY TYPE
CONTROLLED
CIRCUIT
A
15A
Fog
headlamps
D
30A
Injector s, canister purging valve,
oxygen sensor heating
resistance, injection computer.
H
30A
F uel pump
Ignition coil
C
30A
C ooling blower
(vehicle without
AC)
FUSE
NUMB ER
F01
F02
F03
F04
F17 FUSE
TYPE
30A
25A
7,5A 5A
15A PROTECTED C IRCUIT
In jectors, oxygen sensor resistance heating, canister
purging valve, injection computer, fuel pump, ignition coil.
Cooling blower ( vehicles without AC)
Injection computer ( + DC)
In jection computer( (+IC)
Fog headlights
FUSE BOX FROM ENGINE COMPARTMENT
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Page 575 of 933
89A
ELECTRICAL DIAGRAMS
89A - 23
The fuse box placed in the engine compartment is attached in front of the left shock absorber
column and contains relays and fusible protecting the following electric circuits:
FUSE
NUMB ER
F01
F02
F03
F04
F17
F06 FUSE
TYPE
30A
40A
7,5A 5A
15A
7,5A PROTECTED C IRCUIT
In jectors, oxygen sensor resistance heating, canister
purging valve, injection computer, fuel pump, ignition coil.
Cooling blower ( vehicles with AC)
Injection computer ( + DC)
In jection computer( (+IC)
Fog headlights
AC compressor
RELAY
RELAY TYPE
CONT ROL LED
CIRCUIT
A
15A
Fog
headlamps
B
40A
C ooling
blower- 1/st
speed(vehicles
with AC)
D
30A
Injector s, canister purging
valve, oxygen sensor
heating resistance,
injection computer.
E
30A
AC
compressor
H
30A
Fuel
pump
Ignition
coil
B. For equipping E2(0), E3 ( until 01.06.2001)
C
30A
C ooling
blower- 2/
nd speed
(vehicle
with AC)
FUSE BOX FROM ENGINE COMPARTMENT
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Page 577 of 933

89A
ELECTRICAL DIAGRAMS
89A - 25
196 INJECTOR 489-106
199 FU EL LEVEL TRANSMITTER AND ELECTRIC PUMP 89-146
200 REAR WINDOW DEFROSTING 89-149
205 OIL PRESSUR E CONTAC T 89-98
209 CLIGHTS, TURNING LIGHTS, HORN SWITCH 89-114
210 ELECTRONIC CLOC K 89-128
212 WINDSCREEN WIPER MOTOR 89-112
216 RIGHT FRONT BRAKE PAD 89-127
217 LEFT FRONT BRAKE PAD 89-127
221 WINDSCREEN WASHING PUMP 89-125
222 VALVE POTENTIOMETER 89-104
225 DIAGNOSTIC SOCKET 89-135
226 RIGHT HEADLAMP 89-125
227 LEFT HEADLAMP 89-125
244 WATER TEMPERATURE SENSOR 89-99
247 INSTRUMENT PANEL 89-135
250 SPEED TRANSDUC ER 89-117
255 RIGHT FRONT TURNING LAMP 89-126
256 LEFT FRONT TURNING LAMP 89-126
260 COCKPIT FUSE AND RELAYS BOX 89-119
261 R ADIO 89-128
262 COOLING MOTOR FAN (for vehicles with AC) 89-107
267 RIGHT SIDE SIGNALING LAMP 89-126
268 LEFT SIDE SIGNALING LAMP 89-127
272 INJECTION AIR TEMPERATURE SENSOR 89-103
298 CLIMATE CONTROL LIGHTING 89-131
319 AC STARTING BUTTON 89-131
321 MOTOR FAN RESISTANCE ( for vehicles with AC) 89-108
328 LEFT FRONT CEILING LAMP 89-149
329 RIGHT FRONT CEILING LAMP 89-149
371 CANISTER PURGING VALVE 89-101
427 UCE ANT I-INTRUSION 89-143
438 ENGINE HOOD CONTACT 89-118
442 SIREN 89-118
454 RIGHT VOLUMETRIC SENSOR(Rx) 89-142
454 LEFT VOLUMETRIC SENSOR (Tx) 89-142
474 AC R ELAY (on board) 89-129
503 UCE DECODER 89-115
560 HATCHBAC K C ONTACT 89-146
597 ENGINE RELAYS AND FUSE BOX ( for vehicles without AC) 89-94
597 ENGINE RELAYS AND FUSE BOX ( for vehicles with AC) 89-96
600 CLIMATE CONTROL B LOWER 89-130
639 STOP-S3 LAMP (on roof) 89-150
639 STOP[ -S3 LAMP (in aileron) 89-150
649 STEP-BY-STEP ENGINE 89-103
654 ANTI-STARTING BUSHING 89-116
778 IGNITION COIL 89-100
857 FLASH RELAY 89-116
887 SUPSTREAM OXYGEN SENSOR 89-100
927 CHOCK SENSOR 89-102
993 ANTI-INTRUSION INDICATOR LED 89-142
WIRE FUNCTIONS INDEX IN CONNECTORS AND COUPLINGS
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Page 580 of 933

89A
ELECTRICAL DIAGRAMS
89A - 28
ENGINE WIRINGB4101
Pos . Sectioning Destination
12,0 3CW CONTROL - CYLINDERS 2-3 IGNITIO N COIL
32,0 MMASS
40 ,6 3BB CANISTE R PURGING VA LVE CONTRO L
80 ,6 3JN CONTROL - BLOWER RELAY
90 ,35 31A CONTROL - WATER TEMPERATURE INDICA TOR
12 0, 63BU IDLE RUNNI NG REGULATOR CONTROL 1
13 0, 63CS IGNAL + WATER TEMPERA TURE SENSOR
15 0, 353GN ATMOSPHERIC PRESSURE SENSOR M AS S
16 0, 353F ATMOSPHERIC PRESSURE SENSOR SIGNAL
19 0, 5 T B1 DETONATION SENSOR SCREENING
20 0, 53SS IGNAL + DETONATION SENSOR
24 0, 63BL SIGNAL - ENGINE RPM > RPM SENSOR
26 0, 35HL DIAGNOSIS SIGNAL - LINE L
28 2, 0 M M A S S
29 0, 35AP29 + AFTER PROTECTED CONTACT > FUSE OUTLET F03
30 0, 6 BP37 + PROTECTED BATTERY > FUSE OUTLET F04
32 2, 03CV CONTROL - CYLINDERS 1-4 IGNITIO N COIL
33 2, 0 M M A S S
34 0, 353F H CONTROL – INJECTION FAILURE INDICA TOR
39 0, 63GT ACTUATORS RELAY CONTROL
41 0, 63BV IDLE RUNNI NG REGULATOR CONTROL 2
42 0, 6 3BW IDLE RUNNI NG REGULATOR CONTROL 3
43 0, 6 3AJ SIGNAL +VALVE POSITION POTENTIOMETER
45 0, 63GK UPSTREAM OXYGEN SENSOR SIGNAL
49 0, 63BS IGNAL +AIR TEM PERATURE SENSOR
53 0, 3547F VEHICLE SPEED SIGNAL
54 0, 63BG SIGNAL - ENGINE RPM > RPM SENSOR
56 0, 35HK DIAGNOSIS SIGNAL - LINE K
58 0, 35H17I NJECTION CODED SIGNAL > ANTI-STARTER
59 1, 03CR CONTROL – INJECTOR 1
60 1, 03CT CONTROL – INJECTOR 3
63 1, 03GF CONTROL - UPSTREAM OXYGEN SENSOR HEATING
66 1, 03NR + INJECTORS > ACTUATORS RELAY OUTLE T
68 0, 6 3AC CONTROL - FUEL PUMP RELAY
70 0, 35H7 RPM-METER SIGNAL > INJECTION COMPUTER
72 0, 63BX IDLE RUNNI NG REGULATOR CONTROL 4
73 0, 63JK - WATER TEMPERA TURE
74 0, 6 3AQ SIGNAL + VAL VE POTENTIOMETER
75 0, 63JL - VALVE POTENTIOMETE R
77 0, 63JQ - AIR TEMPERA TURE SENSOR
78 0, 353D ATMOSPHERIC PRESSURE SENSOR > SUPPLY +
79 0, 53DQ - DETONATION SENSOR
80 0, 63GH UPSTREAM OXYGEN SENSOR MASS
89 1, 03CU CONTROL - INJECTOR 4
90 1, 03CS CONTROL – INJECTOR 2
CONNECTORS AND CONNECTIONS WIRES FUNCTION
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