mfi MITSUBISHI 3000GT 1994 2.G Workshop Manual

Downloaded from www.Manualslib.com manuals search engine 6GENERAL - Relay Location
RELAY LOCATION
NameSymbolNameSymbol
-ABS power relay*’/A1 MFI relayTJ
Auto-cruise control relay
Blower motor relay
Blower motor relay (Hl)*5
IMotor relay (ABS hydraulic unit)B
EPop-up motor relay*3A
KPower window relayF
Condenser fan motor relay (HI)
Condenser fan motor relay (LO)
Defogger relay
Door lock power relay 1DRadiator fan motor control relay*3D
D
Radiator fan motor relay (HI)A
FRadiator fan motor relay (LO)A
FRear intermittent wiper relavL
Door lock power relay 2
l 2
Fog light relay
Fuel pump relay
Generator relay
LStarter relayA
ATail light relayA
CTheft-alarm horn relay*4E
ATheft-alarm starter relay*4H
Headlight relayATurn-signal and hazard flasher unit
Horn relayA
Valve relay (ABS hydraulic unit)
Magnetic clutch relay
D
NOTE-
(1)*l: Vehicles produced up to Oct. 1993.
I:;
l 2: Except 1993 and earlier models without keyless entry system.
*3: Up to 1993 models
(4)*4: Vehicles with theft-alarm system.
(5)l s: Except vehicles with manual air conditioning from 1996 models.
G
B
00002699
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Downloaded from www.Manualslib.com manuals search engine GENERAL - Diode Location17
DIODE LOCATION
Name
Diode (ABS circuit)
Diode (MFI circuit)
Diode (Seat belt warning circuit)Symbol
Name
SymbolA
Diode (Theft-alarm circuit)C
BDiode (4WS fluid level warning light circuit)D
C
Diode (ABS circuit)
,’ i’16FOO24
I \T19F013400002703
/
f(MFI c?uit)Y16FO251
236FOO16
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Downloaded from www.Manualslib.com manuals search engine L
DEDICATED FUSE
GENERAL - Centralized Junction21
Power supply circuitNo.Rated capacity
(A)Housing color
Circuit
Battery
,!. I/
120YellowMFI circuit
Tailliaht relavI2 1151 Blue1 Tailliaht circuitI
Fusible link (6)
Fusible link (3)
Headlight relay
Battery
310RedHorn circuit
415RedFog light circuit
510RedUpper beam circuit
610RedHazardlightcircuit
7*’10RedABS circuit
7*220Yellow
Sunroof circuit
Fusible link (6)
a20
910
Defogger relay10 10
NOTE*l: Vehicles produced up to Oct. 1993.
*2: Vehicles with sunroof
Yellow
Red
RedCondenser fan motor circuit
Air conditioning circuit
Remote controlled mirror heater circuit
L
1
216FO256
in engine compartment>
Up to 1993 models From 1994 models
Z16FOOO2Z16FOOO3Z16FO43100002705
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Downloaded from www.Manualslib.com manuals search engine 24GENERAL - Harness Connector Inspection
ess connector
contact pressure
checking harness
201 R057
Z16R1317
HARNESS CONNECTOR INSPECTION
CONNECTOR CONTINUITY AND VOLTAGE TESTWhen checking continuity and/or voltage at the waterproof
connectors, follow the steps below to avoid poor connector
contact and/or reduced waterproof performance of connectors.
(1) When checking is performed with the circuit in the stateof continuity, be sure to use the special tool (harness
connector).
Never insert a test bar from the harness side, because
to do so will reduce the waterproof performance and result
in corrosion.
(2) When the connector
JS disconnected for checking the fe-
male pin, the harness for checking the contact pressureof connector pins should be used.
Never force the insertion of a test bar, because to do
so will cause poor contact.(3) When the male pin is to be checked, apply the test bar
against the pin directly.
Care must be taken not to short-circuit the connector pins.
TERMINAL ENGAGEMENT CHECK
When the terminal stopper of connector is out of order, engage-
ment of male and female terminals becomes improper even
when the connector itself is engaged perfectly and the terminal
sometimes slips out to the rear side of connector. Ascertain,
therefore, that each terminal does not come off the connector
by pulling each harness wire.
CONNECTOR TERMINAL ENGAGEMENT AND
DISENGAGEMENTConnectors which are loose shall be rectified by removing
the female terminal from connector housing and raising its
lance to establish a more secure engagement. Removal of
connector terminal used for MFI and 4 A/l control circuit shallbe done in the following manner.
COMPUTER CONNECTOR(1) Insert screwdriver
[1.4 mm (.06 in.) width] as shown in
the figure, disengage front holder and remove it.
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Downloaded from www.Manualslib.com manuals search engine GENERAL - How to Diagnose27
HOW TO DIAGNOSE
L;The most important point in troubleshooting is to determine “Probable Causes”. Once the probable causes
are determined, parts to be checked can be limited to those associated with such probable causes. Thereforeunnecessary checks can be eliminated. The determination of the probable causes must be based
ona theory and be supported by facts and must not be based on intuition only.
TROUBLESHOOTING STEPSIf an attempt is made to solve a problem without going through correct steps for troubleshooting, the
problem symptoms could become more complicated, resulting in failure to determine the causes correctly
and making incorrect repairs. The four steps below should be followed in troubleshooting.
I i
,;zirvation of Problem Symp-Determination of Probable
CausesI
Observe the symptom carefully.
Check if there are also other problems.
In determining the probable causes, it is necessary to check
the wiring diagram to understand the circuit as a system.
Knowledge of switches, relays and other parts is necessary
for accurate determination. The causes of similar problems
in the past must be taken into account.
After the problems are corrected, be sure to check that
the system operates correctly. Also, check that new prob-
lems have not been caused by the repair.
INFORMATION FOR DIAGNOSIS
Troubleshooting is carriedout by making step by step
is found. Always go through
what check is to be made where
/
b
This manual contains the cable diagrams as well as the individual circuit drawings, operational explanations,
and troubleshooting hints for each component required to facilitate the task of troubleshooting. The information
is compiled in the following manner:
(1) Cable diagrams show the connector positions, etc., on the actual vehicle as well as the harness path.(2) Circuit drawings show the configuration of the circuit with all switches in their normal positions.
(3) Operational explanations include. circuit drawings of voltage flow when the switch is operated and
how the component operates in reaction.
(4) Troubleshooting hints include numerous examples of problems which might occur, traced backwardin a common-sense manner to the origin of the trouble.
Problems whose origins may not be found in this manner are pursued through the various system
circuits.
NOTE
Components of MFI, ETACS, ECS, etc. with ECU do not include 3 and 4 above. For this information,
refer to a manual which includes details of these components.
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Downloaded from www.Manualslib.com manuals search engine CONFIGURATION DIAGRAMS - Dash Panel51
C-32c-33
A36F0179
00004255
C-25
C-26
C-27
C-28c-29
c-30
c-31
C-32c-33
Air conditioning control unit

Air conditioning control
unit*2

Air-inlet sensor
Air selection damper control motor
Body wiring harness (LH) and control wiring
harness combination
Body wiring harness (LH) and control wiring
harness combination
Body wiring harness (LH) and front wiring
harness combination
Body wiring harness (RH) and front wiring
harness combination
Body wiring harness (RH) and front wiring
harness combinationc-34
c-35
C-36c-37
C-38c-39c-40
c-41
C-42c-43
C-44c-45Body wiring harness (LH) and body wiring
harness (RH) combination
Foot light (RH)Body wiring harness (RH) and control wiring
harness combination
Auto-cruise control unit
Blower motor
Blower motor relay (HI)
Air conditioning compressor lock controllerAir-inlet sensor
*2
Air-therm0 sensor
Engine coolant temperature sensorMFI relay
Over drive and power
/ economy switch
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Downloaded from www.Manualslib.com manuals search engine CONFIGURATION DIAGRAMS - Dash Panel53
c-86*3C-87*3c-88’3
-J-----1)!_1/t’ \.- -b!w
C-89*3
i
c-71
C-72c-73
c-74
C-76c-77
C-78c-79
C-80C-81
C-82Adapter wiring harness and junction block
combination
Theft-alarm horn relay
Blower motor relayRoof wiring harness and junction block
combinationBody wiring harness (LH) and junction block
combinationBody wiring harness (LH) and junction block
combinationBody wiring harness (LH) and junction block
combinationData link
connector*3Body wiring harness (LH) and junction block
combinationBody wiring harness (LH) and junction block
combinationBody wiring harness (LH) and junction block
combination
36FO17900004256
C-83
C-84
C-85
C-86
C-87
C-88
C-89c-90
c-91
c-92
c-93
c-94
c-95Body wiring harness (LH) and junction block
combination
Auto-cruise relay
Spare connector (Hand free microphone)
Passenger’s air bag
module*3
No connection
Control wiring harness and front wiring harness
combination*3Body wiring harness (LH) and body wiring
harness (RH) combination*3
Engine control module*3
for California>
Data link connector *4y*5
Engine control module*5MFI
relay*5
Body wiring harness (RH) and front wiring
harness combination*5
Motor antenna control unit*5
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Downloaded from www.Manualslib.com manuals search engine CONFIGURATION DIAGRAMS - InteriorE-45 E-46 E-47
E-48E-4g
E-28
E-29
E-30
E-31
E-32
E-33
E-34
E-35
E-37
E-38
E-39
E-40
\
’ E-18
E-19ECS G sensor
Door speaker
Turn signal and hazard flasher unit
Diode (for MFI circuit)
Body wiring harness (LH) and door wiring
harness (LH) combination
Door mirror (LH)
Power window main switch
Power window motor (LH)
Keyless control Unit”’Door lock power relay 2*’
(for keyless control system)
Amplifier*2
Body wiring harness (LH) and door wiring
harness (LH) combination A36F0180
E-41
E-42
E-43
E-44
E-45
E-46
E-47
E-48
E-49
E-50
E-51
Jumper connector A (LH)
Jumper connector B Body wiring harness (RH) and door wiring
harness (RH) combination
Jumper connector A (RH)
Sunroof control unit
Liftgate wiring harness and sunroof
wiring harness combination
Sunroof switch
Sunroof motor
Interior temperature sensor

Rear courtesy light (LH)
cConvertible>*4Rear courtesy light (RH)
cConvertible>*4
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Downloaded from www.Manualslib.com manuals search engine 61
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CIRCUIT
DlAG.RAMS
CONTENTSActive Aero Circuit.........................
428Active Exhaust System Circuit..............
370
Anti-lock Braking System (ABS) Circuit......322
Auto-cruise Control Circuit..................380
Back-up Light...........................54-85
Buzzer Circuit.............................208
Car Telephone Circuit......................435
Central Door Locking Circuit................222
Charging System..........................16-3
Cigarette Lighter Circuit.................54-120
Cooling Circuit.............................176
Defogger Circuit........................54-193Dome Light, Foot Light and Ignition Key
Cylinder Illumination Light................54-72
Door Light and Luggage Compartment
Light...................................54-81
ELC-4 A/T Circuit..........................186
Electronic Control Suspension (ECS) Circuit . . 352
Fog Light Circuit.........................
54-58
Full Auto Air Conditioning’ Circuit............272Glove Box Light, Vanity Mirror
Light and Inspection Light Circuit..........
54-84
Headlight...............................
54-40
Heater Circuit.............................,239
Horn..................................54-116
How to Read Circuit Diagrams..............
62
Ignition System.........................16-32
Manual Air Conditioning Circuit.............242
Meter and Gauges Circuit...............54-12
MFI Circuit................................84
Power Distribution Circuit...................68
Power Seat Circuit....:...................416
Power Window Circuit.....................212
Radio and Tape Player................54-124
Rear. Wiper and Washer Circuit............318
Remote Controlled Mirror Circuit...........320
Starting System.........................16-20
Stop Light.............................54-98
Sunroof Circuit.............................442
Supplemental Restraint System (SRS)
Circuit....................................374
Taillight, Parking/Side Marker Light and
License Plate Light Circuit................54-64
Tension-reducer Type Seat Belt Circuit......423
Theft-alarm System....................54-206
Top Stack Circuit.........................438
Turn-signal Light and Hazard Light.......54-90
Windshield Wiper and Washer Circuit........316
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Power Distribution Circuit69
FUSIBLE LINK
/
i
2R-E
2B-r;
c9
.OAB!OA0,10A015A
B-W'L-W
T
Y-F2R-L
i
G-k2L-B
2R-E
2R-BRADIATOR
FAN MOTOR
2R-
2R-Lr
HEADLIGHT
2R-I
.LIGHTAUTOMATIC;#JT-OFF
. #;HNG
1;
1.25R-Cc
GENERATORE&RUP
LIGHTAUTOMATIC&#~+-oFF
I
1.25R-BR-B
..l,.5ATAILLIGHTRELAY
(A-05X)
LIGHTING
SWITCH
AIRCONDITIONINGCONDENSER#~T"~~ICFAN MOTOR
COMBINATIONMETERCBEAM).FOGLIGHT
$"fALyIGHTr
IA-01x) (A-05X) @iqJ(c-01)
015A
TURN SIGNAL
AND HAZARDMFI RELAY
FLASHER UNITHROlMOOAB
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