Page 557 of 933
89A
ELECTRICAL DIAGRAMS
89A - 5
ATMOSPHERIC PESSURE SENSOR
Position Sectioning Destination
1 0,5 3DQDETONATION SE NSOR MASS
2 0,5 3S DETONATION INFO INJECTION COMPUTER
ENGINE WIRING B41
01
DETONATION SENSOR
11 12 13 2 5 3 4
6
14
7
8 9
10
88 - 07
15
1
1 2
3DQ 3S
X X
CY2AE M A
146
147 3GN 3F 3D
X X X
A B C
ZW3DT VE
GENERALITIES
vnx.su
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
vnx.su
Page 559 of 933

89A
ELECTRICAL DIAGRAMS
89A - 7
- the connector of the water temperature sensor (pos.10) shall be disconnected
as follows: push
the sensor connector in antipodes points, in the direction of the A and B arrows, achieving in this
way the unlocking of the ( C ) spur, then perform the disconnecting.
- the connectors of oil pressure contact (pos.11) and of the reverse driving contact shall be
disconnected as follows: push in antipodes points in the direction of the (A) and ( B) arrows, achieving
in this way the unlocking of the connector claw, then the connector may be disconnected by pulling
in the ( C) arrow direction.
- the connector of the choke sensor (pos.12) shall be unlocked by pushing the clamp in the (A)
arrow direction, then the connector disconnecting may be achieved.
- the injection computer (pos.13) – the unlocking is performed by acting upon the locking clamp
(A) in the (B) arrow direction, then lift the connector in the (C) arrow direction, achieving in this way
the computer disconnecting. For reconnecting, perform the disconnecting operations in the reverse
order.
pos . 11
A
B
C
pos . 12
A
pos.13B C
A
GENERALITIES
vnx.su
Page 560 of 933

89A
ELECTRICAL DIAGRAMS
89A - 8
- the connector of the air temperature sensor (pos.14) and of the injectors (pos.14) – push the
locker (A) in the (B) arrow direction then the connector disconnecting may be achieved. The reconnecting of the a.m. connectors sha ll be performed after their correct positioning, followed
by their pushing till a “click” is he ard, that will confirm the firm and correct performing of the connecting.
The connecto r of the oxygen sensor, the coupling connections of the rear wiring to the vehicle
doors wiring, the connections between the doors actuators and the doors wiring are attached to the
car riage body by means of clamps (pos.15). To unlock the clamps maintaining these connectors on the
carriage body, disconnect these connectors, easy push the clamp terminal (I) in the (A) arrow direction
a nd move the connector in the (B) arrow direction, parallel cu the attachment surface on the clamp.
The a ttachment of the connector on the clamp is achieved, proceeding in the reverse order, then
the disconnecting may be performed.
The co nnections between front wiring, das hboard, rear and engine are attached by sliding in the
supports. Next, the disconnecting/reconnecting procedure of the front wiring-dashboard (pos.16) is
presented, which are attached on a support placed under the dashboard, left side:
-r em ove the connection form the support (A), by pulling it in the (B) arrow direction.
-push the (C)- locking spur, then the connections disconnecting may be achieved.
-a t reconnecting, push the two connectors till the correct connecting.
-p osition the connection in the (A) support guides, then push in the (D) arrow directions.
pos . 15
A
B
1
B
DA
C
pos . 16
pos . 14
BA
GENERALITIES
vnx.su
Page 561 of 933

89A
ELECTRICAL DIAGRAMS
89A - 9
In the same way, shall be proceed also foe the disconnecting/reconnecting the other previously
mentioned connections.
The disconnecting of the UCE anti-intrusion (pos.17) shall be performed as follows:
- push in the dire ction of the A and B
arrows, the two maintaining clamps of the
wiring connector; - e a sy p ul l t he 24-ways con nector,
achieving in this way the disconnecting; - disconnect then, carefully, the two-ways
connector.
At reconnecting insert the connector until a
“cli ck” i s heard, con fi rm ing t he corre ct
connecting.
The disconnectin g/reconnecting of the UCE decoder (pos.18 ) shall be performed as follows:
- push the t wo clamps (A) and (B) i n the
direction shown by the arrows; - disconnect then the connector;
- at reconnecting push the connector until
a “click” is heard, confirm ing the correct
coupling.
The di sconnecting of the two connectors of the radio uni t (pos.19) shall be performed as
follows:
- push the connectors locking spur in the direction
of the (A) and (B) arrows.
- disconnect the connector;
- at re connecting position the connectors, then
push them until a ”click” is heard, c onfirming the
correct performing of the connection.
AB
pos . 17
A B
pos . 18
B A
pos . 19
GENERALITIES
vnx.su
Page 562 of 933

89A
ELECTRICAL DIAGRAMS
89A - 10
( until 01.06.2001)
NR. ELECTRIC DIAGRAMS DENOMINATION AE1 AE2 AE3
1 ANTI -INTRUSION AE2(O), AE3 O S
2 DOORS CENTRAL LOCKING S S S
3 ANTI-STARTING S S S
4 ELECTRIC LIGHTER S S S
5 CLIMATE CONTROL AE1, AE2 S S
6 CLIMA TE CONTROL AND AIR CONDITIONING AE1(O), AE2(O), AE3 O O S
7 TRUNK LIGHTING S S S
8 CEILING LIGHTING S S S
9 ASHTRAY AND DOCUMENT COMP.LIGHTING S S S
10 CLOCK S S S
11 PRE-EQUIPPING RADIO AE1, AE2 S S
12 PRE-EQUIPPING RADIO AE3 S
13 STARTING CIRCUIT S S S
14 ENGINE COOLING CIRCUIT AE1(series), AE2(series) S S
15 ENGINE COOLING CIRCUIT AE2(O), AE3 O S
16 ELECTRONIC INJECTION AE1(series), AE2(series) S S
17 ELECTRONIC INJECTION AE3 S
18 ALTERNA TOR CIRCUIT S S S
19 MASS SS S
20 MASS AE1 S
21 MASS AE2 S
22 MASS AE2(anti-intrusion), AE3 O S
23 MASS AE1 S
24 MASS AE1(
CA)O
25 MASS AE2 S
26 MASS AE2(
CA), AE3 O S
27 MASS AE1, AE2 S S
28 MASS AE2(anti-intrusion), AE3 O S
29 MASS AE1, AE2 S S
30 MASS AE1(
AC), AE2(CA), AE3 O O S
31 FUSE BOX AND COCKPIT RELAYS AE1 S
32 FUSE BOX AND COCKPIT RELAYS AE1(
CA)O
33 FUSE BOX AND COCKPIT RELAYS AE2 S
34 FUSE BOX AND COCKPIT RELAYS AE2(
CA), AE3 O S
35 FUSE BOX AND ENGINE RELAYS AE1 S
36 FUSE BOX AND ENGINE RELAYS AE1(
CA)O
37 FUSE BOX AND ENGINE RELAYS AE2 S
38 FUSE BOX AND ENGINE RELAYS AE2(
CA),AE3 O S
FUNCTIONAL DIAGRAMS LIST
vnx.su
Page 563 of 933

89A
ELECTRICAL DIAGRAMS
89A - 11
39HANDBRAKE INDICATOR AND BRAKING SYSTEM FAILURE S S S
40 FUEL LEVEL INDICATOR CIRCUIT S S S
41 OIL PRESSURE INDICATOR CIRCUIT S S S
42 DIAG NOSTIC SOCKET S S S
43 INSTRUMENT PANEL AE1 S
44 INSTRUMENT PANEL AE2, AE3 S S
45 WA TER TEMPERATURE INDICATOR CIRCUIT S S S
46 BRAKE PADS WEAR INDICATOR CIRCUIT S S S
47 VEHICLE SPEED S S S
48 SOUND W ARNING S S S
49 REAR WINDOW DEFROSTING S S S
50 WINDSCREEN WIPER-WASHING S S S
51 REAR FOG LAMP S S S
52 FOG HEADLIGHTS AE2, AE3 S S
53 MEETING LIGHTS S S S
54 REVERSE DRIVING LIGHTS S S S
55 PA R K I N G LIGHTS S S S
56 ROAD LIGHTS S S S
57 STOP LIGHTS AE1, AE2 S S
58 STOP LIGHTS AE2(aileron) O
59 STOP LIGH TS AE2(CA), AE3 O S
60 TURNING AND HAZARD LIGHTS AE1 S
61 TURNING AND HAZARD LIGHTS AE2, AE3 S S
Note : these electr ic diagrams are valid for vehicle manufactured until 01.06.2001; AE1
( Confort), AE2 (Rapsodie), AE3 (Clima) represent equipping levels of the vehicle.
FUNCTIONAL DIAGRAMS LIST
vnx.su
Page 564 of 933

89A
ELECTRICAL DIAGRAMS
89A - 12
(until 01.06.2001)
21
101
102
103
104
105
107
113
120
121
122
123
124
125
128
137
138
139
140
141
145
146
147
149
155
156
160
163
165
168
171
172
173
175
176
177
180
181
184
185
188
189
190Right signalling anti-return diode
Electric lighter
Ashtr a y
Alternator
Anti-theft system
Acoustic alarm
Battery
Windscreen wiper timer
Injection computer (UCE)
Fog lights switch
Fog headlights switch
Door closing switch
Climate blower switch
Hazard switch
Rear window defrosting switch
Turning signalling relay
Right rear door actuator
Left rear door actuator
Left front door actuator
Right front door actuator
Windscreen wiper-washer switch
Detona tion sensor
Atmospheric pressure sensor
RPM s
ensor
Reverse driving contact
Handbrake contact
St op contact
Starte r
Trunk lighting lamp
Documents compartment lighting lamp
AC compressor clutch
Right rear lamp
Left rear lamp
Left fog lamp
Right fog headlight
Left fog headlight
Left front door contact
Right front door contact
Right front parking lamp
Left front parking lamp
Cooling motor fan
Right rear loud speaker
Left rear loud speakerRight front brake pad
Left front brake pad
Windscreen washing pump
Va l ve potentiometer
Diagnostic socket
Right headlamp
Left headlamp
Fog lamps relay
Fog headlights control relay
Cooling motor fan control relay
Fuel pump control relay
Actuators relay
Injection water temperature sensor
Instrument panel
V ehicle speed transducer
Right front turning lamp
Left front turning lamp
Cockpit fuse and relays box
Radio
Cooling motor fan and AC
Right side signalling lamp
Left side signalling lamp
Injection air temperature sensor
Rear window defrosting timer
Climate control lighting
AC starting button
Motor fan resistance ( f or AC)
Left front ceiling lamp
Right front ceiling lamp
Canister purging valve
UCE anti-intrusion
Engine hood contact
Siren
Vo l u metric sensor
AC relay ( on board)
UCE decoder
Hatchback contact
AC compressor clutch control relay
Engine compartment fuse and relays box
Climate control blower
STOP-S3 l amp
St ep-by-step engine
Anti-starting bushing
216
217
221
222
225
226
227
230
231
234
236
238
244
247
250
255
256
260
261
262
267
268
272
294
298
319
321
328
329
371
427
438
442
454
474
503
560
584
597
600
639
649
654
CODE COMPONENT DENOMINATIONCODE COMPONENT DENOMINATION
ELECTRIC COMPONENTS INDEX
vnx.su