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88
WIRING
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Diagnostic – Failure locating tree
Ensure t hat not CL IP tester i s the failure cause – try its communication with some ot her
vehicle UCE airbag. If CLIP tester is not the failure cause and the dialogue is not established
with no other computer of the same vehicle, it is possible that another damaged computer is
perturbing the diagnostic lines L and K.
Proceed by consecutive disconnection for damaged computer locating.
Check the battery voltage and perform the necessary interve ntions in order to obtain an
adequate vol tage, with the value between 10.5 volts and 15 volts.
Check the presence and condition of the supply fuse of UCE airbag.
Check the correct connection of the computer connector and the cables condition.
Check the computer correct supplying: -Disconnect UCE airbag then connect the 30 pins adapter B40.
- Check and ensure voltage presence be tween plugs marked mass and +DC (+ after
contact)
Check the correct supplying of the diagnostic socket: -supply + permanent at pin 16
- mass at pin 5
Check the continuity and insulation of the connection lines diagnostic socket / UCE airbag:
- plug 23 of UCE airba g pin 15 diagnostic socket (line L)
- plug 9 of UCE a irbag pin 7 di agnostic socket (line K)
If dialogue is not established after these checking, replace UCE airbag (see c hapter “UCE
airbag replacement) .
Missing dialog with the airbag computer.
ALP1
RECOMMENDATIONSCharacteristics : nothing to notice
AFTER
INTERVENTION After communication establishing, treat the possible declared failures.
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89
ELECTRIC DIAGRAMS
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The fuse box from the engine compartment is presented in Chapter 9, that contains information
about its location on the vehicle and the functional purpose of the relays and fuse placed on it.
The functional codes of the wires are detailed explained in Chapter 12. FUNCTIONAL DIAGRAMS INTERPRETATION
The functional diagram information included in Chapter 7 are to be i nterpreted taking i nto
consideration the explanation referring to the following example:
1= vehicle class
2= manufacturing year
3= functional electric diagram denomination
4= equipment differentiation criteria for identifying the functional electric diagram ˙
5= electric connector colour ˝
6= connector graphical representation
7= electric component index number
8= number of the fuse box on which the relay or safety fuse is m ounted
9= safety fuse identification on fuse box
10 = safety fuse value
11 = identification of wiring joints
12 = electric mass identification
13 = electric connection colour between wiring ˝
14 = electric connection identification
15 = electric connection graphical representation
16 = symbol, pages containing functional diagrams
17 = wire function code
18 = wire colour ˝
19 = functional diagram number
OBSERVATION:
1. The area ( 4) specifies the differentiating elements serving to the various functional diagrams
identification, considering the following symbols:
ABCO01 = driver’s airbag
CA = climate maintenance with air conditioning
CHAUFO = climate maintenance without air conditioning
CPE = Electric locking/unlock ing doors control
DA = assisted power steering
E0, E1, E2 = levels of equipment
LV E = front windows electric control
___ ___________________________________________________________________________
General
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89
ELECTRIC DIAGRAMS
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Functional diagrams list
DOORS CENTRAL LOCKING
ANTI-STARTING
SPEED LIMIT INDICATOR
ELECTRIC LIGHTER
CLIMATE CONTROL
CLIMATE CONTROL AND AIR CONDITION
CEILING LAMP
FRO NT WINDOWS ELECTRIC CONTROL
RADIO
STARTING CIRCUIT
E NGINE COOLING FAN
ELECTRONIC INJECTION
CHARGING CIRCUIT
REAR WIRING MASS
FRONT WIRING/ DASHBOARD MASS
BATTERY/CARRIAGE BODY MASS
FOG PROJECTORS WIRING MASS
HATCHB ACK WIRI NG MASS
E NGINE WIRING MASS
COCKPIT FUSE BOX
E NGINE FUSE BOX AND RELAY
HANDBRAKE INDICATOR / BRAKING SYSTEM FAILURE
FUEL LEVER INDICATOR
OIL PRESS URE INDICATOR
DIAGNOSTIC SOCKET
DASHB OAR D
ALER T TEMPERATU RE INDICATOR FOR COOLING FLUID
WA TER TEMPERATURE COOLING FLUID INDICATOR
SPEED INDICATOR
DRIVER’S AIRBAG
DRIVER SAFETY BELTS INDICATOR
ACOUSTIC WAR NING
REAR WINDOW DEFROSTING
ELECT RIC D IAGRAM S DE NOM INATION DI AGRAM NUM B E R
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
64
65-66
67
68-69
70-71-72-73-74
75
76
77-78
79
80
81
82
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Page 713 of 891
89
ELECTRIC DIAGRAMS
89 - 17
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:
FUS E
NUMBER
F02
F03
F04
FUS E
TYPE
40A
7.5A 30A
P ROTECTED CIRCU IT
Engine cooling fan
AC compressor
In jectors, oxyg en sensor heating resistance, canister purging valve,
injecti on com puter, fuel pump, ignition coil, vehicle speed
transducer.
B. For vehicles with air conditioning
RELA Y
R ELA Y T YPE
CONTROLLED
CIRCUIT
A
30A
AC
compressor
B
30A
Engine
cooling fan
- 1/st speed
D
30A
Injector s, canister purging valve, oxygen sensorheating resistance,
inj ection computer, and
vehicle speed transducer
H
30A
Fuel pomp,
i gnition coil
C
40A
Engine
cooling fan - 2/nd
speed
E*
30A
Fog
projectors
∗- fo r vehicles equipped with fog projectors
Fu se box from engine compartment
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ELECTRIC DIAGRAMS
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ENGINE WIRING
E7J 262 X412
03
12.0 3CW
32.0MH
40.6 3B B
80.6 3J N
90.35 31A
10 0. 5 38K
12 0. 6 3BV
13 0. 6 3C
15 0. 35 3GN
16 0. 35 3F
18 0. 6 38X
19 0. 5 TB 1
20 0. 5 3S
24 0. 6 3B L
26 0. 35 HL
28 2. 0 M H
29 0. 35AP29
30 0. 6 B P 37
32 2. 0 3CV
33 2. 0 M H
34 0. 35 3F H
38 0. 6 3 J P
39 0. 6 3GT
41 0. 6 3B U
42 0. 6 3 B W
43 0. 6 3 A J
44 0. 6 3GL
45 0. 6 3GK
46 0. 5 38AS
49 0. 6 3B
53 0. 35 47F
54 0. 6 3BG
56 0. 35 HK
58 0. 35 H17
59 1. 0 3C R
60 1. 0 3C T
63 1. 0 3GF
65 1. 0 3GG
66 1. 0 3NR
68 0. 6 3 A C
70 0. 35 H7
72 0. 6 3B X
73 0. 6 3J K
74 0. 6 3 A Q
75 0. 6 3J L
76 0. 6 3GJ
77 0. 6 3J Q
Position SectionDestination
CONTROL - IGNITION COIL CYLINDE R 2-3
M ASS
CANISTE R PURGE VA LVE CONTROL
CONTROL – ENGINE COOLING FAN 1 SPEED
CONTROL - WATER TEMPERA TURE INDICATOR
AIR CONDITION STOPPING CONTROL>COMPRESSOR RELA Y
CONTROL 2 IDLING REGULATOR
SIGNAL + WATER TEMPERA TURE SENSOR
AIR PRESSURE SENSOR M ASS
SIGNAL AIR PRESSURE SENSOR
FREON PRESSURE SENSOR SIGNAL
DETONATION SENSOR SCREENING
SIGNAL + DETON ATION SENSOR
SIGNAL – ENGINE RPM>RPM SENSOR
SIGNAL DIAGNOSIS LINE L
M ASS
+ AFTER CONT ACT PROTECTED>OUTLET FUSE F05 COCKPIT
+ BATTERY PROTECTED>OUTL ET FUSE F21 COCKPIT
CONTROL - IGNITION COIL CYLINDE R 1-4
M ASS
CONTROL - ANTI-POLLUTION FAILURE INDICA TOR
CONTROL - COOLING FAN MOTOR REL AY 2ND SPEED
ACTUATORS RELA Y CONTROL
IDLING REGULA TOR CONTROL 1
IDLING REGULA TOR CONTROL 3
SIGNAL – POTENTIOMETER POSITION VALV E
DOWNSTREAM OXYGEN SENSOR SIGNAL
UPSTREAM OXYGEN SENSOR SIGNAL
SIGNAL AIR CONDITION ING COMPRESSOR COUPLING
SIGNAL + AIR TEMPERATURE SENSOR
VEHICLE SPEED SIGNAL
RPM ENGINE SIGNAL>RPM SENSOR
DIAGNOSIS SIGNAL – LINE K
CODED INJECTION SIGNAL > ANTI-STARTING
CONTROL - INJECTOR 1
CONTROL - INJECTOR 3
CONTROL - HEATING UPSTREAM OXYGEN SENSOR
CONTROL - HEATING DOWNSTREA M OXYGEN SENSOR
+ INJECTORS > OUTLE T ACTUATORS RELAY
CONTROL - FUEL PUMP RELA Y
SIGNAL RPM > INJECTION COM PUTER
CONTROL 4 IDLING REGULATOR
- WATER TEMPERA TURE
SIGNAL + POTENTIOMETER VA LV E
- POTENTIOMETER VA L V E
DOWNSTREAM OXYGEN SENSOR MASS
- AIR TEMPERA TURE SENSOR
Wires functions in connectors and couplings
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Page 727 of 891
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ELECTRIC DIAGRAMS
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ENGINE COOLING FAN
(for vehicles without air condition)
ENGI NE WIRING
E7J262 X412
03
AIR CONDITIONING COMPRESSOR CLUTCH
38R
X
NO
171
Position Section Destination
11.0 38R CONTROL +AIR CONDITIONING COMPRESSOR CLUTCH
12.0MA JMASS
22 .0 49B CONTROL + ENGINE COOLING FA N
Position Section Destination
Wires functions in connectors and couplings
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ELECTRIC DIAGRAMS
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ENGINE WIRING
E7J262 X412
03
WA TER TEMPERATURE INJECTION SENSOR
COOLING MOTOR FAN AND AIR CONDITION
(for vehicle with air conditioning)
Position Section Destination
A0.35 42A SIGNAL + WATER TEMPERA TURE
B1 0.60 3JK- WATER TEMPERA TURE
B2 0.60 3C SIGNAL + WATER TEMPERA TURE SENSOR
Position Section Destination
13.0 49B CONTROL + ENGINE COOLING FAN > COOLING F AN RESISTANCE
15 .0 49B CONTROL + COOLING FA N
25.0 MA JMASS
Wires functions in connectors and couplings
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Page 733 of 891
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ELECTRIC DIAGRAMS
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AIR TEMPERATURE INJECTION SENSOR
ENGINE COOLING FAN RESISTANCE (for vehicles with air conditioning)
ENGINE WIRING
E7J 262 X412
03
Position Section Destination
10.60 3B SIGNAL + AIR TEMPERATURE SENSOR
20 .60 3JQ MASS AIR TEMPERATURE SENSOR
Position Section Destination
13
.0 49L CONTROL + LOW SPEED COOLING F AN RESISTANCE
23 .0 49B CONTROL + COOLING FA N
Wires functions in connectors and couplings
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