1995 MITSUBISHI 3000GT Ecs

Downloaded from www.Manualslib.com manuals search engine GENERAL - Sensor Location9SENSOR
LOCATION
NameSymbol
Name
Symbol
ABS front speed sensorYKickdown servo switchM
ABS rear speed sensorZ
Knock sensorE
Air inlet sensor (for A/C)SLeft bank heated oxygen sensorD
Air therm0 sensor (for A/C)RManifold differential pressure sensor*4CAutomatic transaxle oil temperature sensor M
4lT>Photo sensor
TCamshaft
posit!on sensor and crankshaft N. . .Power steering pressure switchFposrtton sensor” I
Camshaft position sensor (from 1993 model)GPulse generator A, B M
Crankshaft position sensor (from 1993 model)HRevolution pick-up sensorI
EGR temperature sensor*3CcTurbo, Non Turbo (for California)>Right bank heated oxygen sensorD
Engine coolant temperature sensor (for A/C)QSteering wheel angle speed sensor0
Engine coolant temperature sensorL(for engine control)Therm0 sensor*2
K
Engine coolant temperature switch (for
A/C)*2LThermostatI
Front impact sensorIx1 Throttle position sensorIJ 1
G sensor (for ABS)PJ( Vehicle speed sensor (Reed switch)*’Ip I
G sensor(for ECS)*31 Vehicle speed sensorIB 1
Heated oxygen sensor*”ID( Volume air flow sensortA 1/III
Interior temperature sensorIw II I
NOIF
I:;
:
*2:
Up to 1992 models(3)
*3:
Up to 1993 models(4)
*a:
Up to 1995 models
From 1996 models
19FO13400004237
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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 - How to Read Configuration Diagram37
,lHOW TO READ CONFIGURATION DIAGRAM
id actual vehicles.
L
Denotes connector No.The same connector No. is used throughout the circuit dia-
grams to facilitate connector location searches. The first al-
phabetical symbol indicates the location site of the connector
and a number that follows in the unique number. Numbers areassigned to parts in clockwise order on the diagram.
Examole: A-l 2
/Number specific to connector (serial number)
Connector location site symbol
A: Engine compartment
B: Engine and transaxle
C: Dash panel
D: Instrument panel and floor consoleE: Interior
F: Luggage compartment
Denotes ground point.Same ground number is used throughout cir-cuit diagrams to facilitate search of ground
point. Refer to P.4 for details of ground points.
A-01X
A-02X
A-03X
A-04X
A-05X
A-06X
A-07X
A-08X
A-09X
A AL\,
$~~~;~.--.-.*/hhA, ”
L^---,.-I II-m 1 lta>.I
J
n-1°KA-11X
\
LI
ueriotes a sermon covereaby a corrugated tube.236F0122
A-01X Headlight relayA-18A-02X ABS power relayA-l 9ignition timing adjustment connector
Front washer motorA-03X Fog light relayA-20
A-04XRadiator fan motor relay(L0)A-21Evaporative emission purge solenoid
EGR solenoidA-05X Taillight relay
A-06X Horn relay
A-22(Vehicles for California)
A-07X Radiator fan motor relay (HI)EGR temperature sensor
A-09X Starter relayA-23(Vehicles for California)
No connection A-l OX Generator relayA-24Brake fluid level sensorA-11XIOD or Storage connectorA-25
A-12ABS front speed sensor (RH)A-26ECS front shock absorber (LH)
Theft-alarm horn
A-13Theft-alarm horn
A-14ECS front shock absorber (RH)A-27
Washer fluid level sensorA-28
Auto-cruise vacuum pump
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Downloaded from www.Manualslib.com manuals search engine 38CONFIGURATION DIAGRAMS - Engine Compartment
ENGINE COMPARTMENT
(UP TO 1993 MODELS)
Connector
symbol
A
01xthru
34X

A-20A-21
A-22
A-01X
A-02X
A-03X
A-04X
A-05X
A-06X
A-07X
A-08X
A-09XHeadlight relayABS power relay
Fog light relay
Radiator fan motor relay (LO)
Taillight relay
Horn relay
Radiator fan motor relay (HI)
Pop-up motor relayStarter
relavA-12 A-13A-14 A-15 A-16A:174-18
A-79 q-20 A:21 4-22
A-10X
A-11X
A-12
A-13
A-14
A-l 5
A-16
A-17
A-18Generator relayIOD or Storage connector
ABS front speed sensor (RH)
ECS front shock absorber (RH)
Washer fluid level sensor
Front wiper motor
Engine speed detection connector
Fuel pump check connector
Ignition timing adjustment connector
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Downloaded from www.Manualslib.com manuals search engine A-23A-24 A-25A-26
A-27
CONFIGURATION DIAGRAMS - Engine Compartment39
sJ=+?6Foo1300004251
A-l 9
A-20
A-21
A-22A-23
A-24
A-25
A-26
Front washer motor
Evaporative emission purge solenoid
EGR solenoid (Vehicles for California)
EGR temperature sensor
(Vehicles for California)
No connection
Brake fluid level sensor
ECS front shock absorber (LH)
Theft-alarm horn
piFE&l
A-27
A-26
A-29
A-30
A-31X
A-32X
A-33X
A-34X
Theft-alarm horn
Auto-cruise vacuum pump
ABS front speed sensor (LH)4WS fluid level sensor

Condenser fan motor relay (HI)
Radiator fan motor control relay
Magnetic clutch relay
Condenser fan motor relay (LO)

Downloaded from www.Manualslib.com manuals search engine 42CONFIGURATION DIAGRAMS - Engine Compartment
ENGINE COMPARTMENT
(FROM 1994 MODELS)
A01xthru
34X
A-20 A-21
A-22
NOTE*: Up to 1995 models
A-01X
A-02X
A-03X
A-04X
A-05X
A-06X
A-07X
A-09X
A-l OX
A-12A-13 A-14A-15 A-17A-01X!i\1 A-16 /A-18 A-19 A-20 A-21 A-22/I
Headlight relay
ABS power relay
Fog light relay
Radiator fan motor relay (LO)
Taillight relay
Horn relay
Radiator fan motor relay (HI)
Starter relay
Generator relayA-11XIOD or Storage connector
A-12ABS front speed sensor (RH)
A-13ECS front shock absorber (RH)*
A-14
Washer fluid level sensor
A-15Front wiper motor
A-16Engine speed detection connector
A-17Fuel pump check connector
A-18Ignition timing adjustment connector
A-l 9Front washer motorTSB
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Downloaded from www.Manualslib.com manuals search engine CONFIGURATION DIAGRAMS - Engine CompartmentA-23 A-24 A-25
A-26 A-27
i
L
A-30
A-31X
A-32XA-33X
tim-I
\; ,.,,,,/ /--fk!pJ / -
-_---__
jfy--@--o Id\ /
rilf+““1
=\
::-2II
36FOt2200004253
A-20
A-21
A-22
A-23
A-24
A-25
Evaporative emission purge solenoid
EGR solenoid
cTurbo, Non Turbo (Up to 1995 models for
California and from 1996
models)>
EGR temperature sensor*

No connection

Brake fluid level sensorECS front shock absorber (LH)
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A-26
A-27
A-28
A-29
A-30
A-31X
A-33X
A-34XTheft-alarm horn
Theft-alarm horn
Auto-cruise vacuum pumpABS front speed sensor (LH)
4WS fluid level sensor
Condenser fan motor relay (HI)
Magnetic clutch relay
Condenser fan motor relay (LO)

Downloaded from www.Manualslib.com manuals search engine 54CONFIGURATION DIAGRAMS - Instrument Panel and Floor Console
INSTRUMENT PANEL AND FLOOR CONSOLED-11 D;‘2D-1 0 ‘.,, \
I
Connectorsymbol
D
later
1993 and
D-03
D-Or ~~\\ Id&
D-02
4D-49 _
D-4i /
D-41
D-36I- -’rL?A/D-:” “- D-331 D-30“-c.w -\D-31 D-29
D-01
D-02
D-03
D-04
D-05
D-06
D-08
D-09
D-l 0
D-11
D-12
D-13
D-14
D-15Pop-up switch and fog light switch
Front speaker (LH)
Combination meter
Combination meter
Combination meter
Defogger switch and ECS switch
Hazard switch
Combination gauge
Diode (for 4WS fluid level warning light circuit)
Glove box illumination light
Photo sensor
Front speaker (RH)
Glove box illumination light switch
Instrument panel wiring harness and control
wiring harness combination
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NOTE
I:I*l: Up to 1993 models*? Up to 1994 models
(3)
*3:From 1996 models
D-l 6
D-17
D-18
D-19
D-20
D-21
D-22
D-23
D-24
D-25
D-26
D-27
D-28
Instrument panel wiring harness and body
wiring harness
(RH) combination
Ashtray illumination light
Cigarette lighter
Cigarette lighter
Cigarette lighter illumination light
Power seat switch
Body wiring harness (LH) and console wiring
harness combination
SRS diagnosis unit
SRS diagnosis unit
SRS diagnosis unit*’
SRS diagnosis unit
ABS G sensor
Parking brake switch