diagram MITSUBISHI 3000GT 1994 2.G Workshop Manual

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i Service Manual
3000~l-
1992-l 996
Volume
2
Electrical
FOREWORD
i
L
This Service Manual has been prepared with the latest service information available at the time of
publication. It is subdivided into various group
categories and each section contains diagnossis,
disassembly, repair, and installation procedures
along with complete specifications and tightening
references. Use of this manual will aid in properly
performing any servicing necessary to maintain or
restore the high levels of performance and reliability
designed into these outstanding vehicles.
@
A
.
.,
WESUF’FORTVOLUNTARY TECHNICIAN
CERTiFiCATlON THROUGH
National lnaltute forAUTOMOTIV ESERVICEEXCELLENC E
Mitsubishi Motors Corporation reserves the right to make changesin design or to make additions to or improvements in its products withou\
timposing any obligations upon itself to install them on its productspreviously manufactured.
L
--
GROUP / SECTION INDEX
General. . . . . . . . . . . . . . . . . . . . . . . .
Fusible Link, Fuse an d IOD or
Storage Connector Locatio n
. . . . . . . . . .w
Inspection Terminal Location . . . . . . . . .
Grounding Location . . . . . . . . . . . . . . . . . .w
m
Relay Location . . . . . . . . . . . . . . . . . . . . . -m
Sensor Locatio
n. . . . . . . . . . . . . -. . . . . . .w
Control Unit Location . . . . . . . . . . . . . . . . .m
Solenoid, Solenoid Valve Location . . . . .d
Diode Location . . . . . . . . . . . . . . -. . . . . . .w
Junction Block . . . . . . . . . . . . . . . . . . . . . . .II
Centralized Junction . . . . . . . . . #. . . . . . .w
Harness Connector Inspectio n. I . . . . . .w
How to Diagnose . . . . . . . . . . . . . -. . . . . . .
111
Configuration Diagrams . . . . . . . . . . . - . .m;
Circuit Diagrams . . . ..*.............
Engine Electrical ...............
ChassisElectrical
............ .
Alphabetical Index .............
NOTE:
For information concerning all compo-
nents other than the electrical system and
on-vehicle service procedures for engines
and transmissions, refer to Volume 1
“Chassis & Body” of this paired Service
Manual.
For overhaul procedures of engines or
transmission, refer to the separately is-
sued Engine Service Manual or Manual/
Automatic Transmission Service Manual.
@ 1995 Mitsubishi Motors CorporationReprinted in USA

Downloaded from www.Manualslib.com manuals search engine GENERAL -Groundina Location
GROUNDING LOCATION
216FO267
NOTESame ground numbers are used in the circuit diagram.
qZ-\
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w-.-mt-, -
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Xl 9FO134
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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
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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 GENERAL - How to Diagnose293. Jumper wire
A jumper wire is used to close an open circuit. Never
use one to connect a power supply directly to a load.
Z16602274. Voltmeter
A voltmeter is used to measure the circuit voltage. Normally,the positive (red lead) probe is applied to the point of
voltage measurement and the negative (black lead) probeto the body ground.
5. Ohmmeter
An ohmmeter is used to check continuity or measure resis-
tance of a switch or coil. If the measuring range has been
changed, the zero point must be adjusted before measure-
ment.
CHECKING SWITCHES
In a circuit diagram, a switch is represented by a symbol andin the idle state.
1. Normal open or normal close switch
Switches are classified into those which make the circuit
open and those which make the circuit closed when off.
INormal open (NO) typeIOFF
/4-
1X
t
Current does not flow
16X0690
ON
1
a
ia
Current flows
16X0691
00000401
Normal close (NC) type
i===ONOFF
1
/4-
1X
Current does not flow16X0690
00000402
a
III
Current flows
16X0691
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Downloaded from www.Manualslib.com manuals search engine CONFIGURATION
DIAGRAMSCONTENTS
_I
Dash Panel................................50Instrument Panel and Floor Console..........54Engine and Transaxle
CA/T>.................48Interior.....................................56
.................46
Luggage Compartment......................58
Engine Compartment........................38Overall Configuration Diagram...............36
How to Read Configuration Diagram.........37

Downloaded from www.Manualslib.com manuals search engine 36CONFIGURATION DIAGRAMS - Overall Configuration Diagram
OVERALL CONFIGURATION DIAGRAM
Roof wiring
CHBACK>Instrument panel
wiring harness
- ,;
/Front wiring“l,
Door wiring*harness
harness
.-----y ,,\.Body wiring
harness (LH)Y36FOO19

Body wiring
harness (RH)Roof wiring
Instrument panel
wiring harness
Control wiring/harness
Door wiring*
harness
/Z36FO124Front wiring‘x\..e----qT .\, ’ Body\Niring00002733
harness‘-*harness (LH)
NOTE
(1)This illustration shows only the major wiring harness.
(2)* indicates also equipped at the right side.
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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
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n-1°KA-11X
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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 CONFIGURATION DIAGRAMS - Engine Compartment

A-69A-70
\ \
36FOO14
A-35
A-36
A-37
A-38
A-39
A-40
A-41
A-42
A-43
A-44A-72 A-71A-67+
A-5
A-57 A-55A-54 A-53 A-52 A-51A-47A-48
A-49
A-50
Dual pressure switchAir conditioning relay box
Air conditioning relay box
SW front impact sensor (LH)
Front combination light (LH)inspection light switch
Headlight (LH)Front wiring harness and headlight wiring
harness (LH) combination
Fog light (LH)
POWJO motor (LH)A-45
A-46
A-47
A-48
A-49
A-50
A-51
A-52
A-53
A-54
A-55
Condenser fan motor
Condenser fan motor
Horn
Horn
Horn
Horn
Fuel pump resistor
A/T fluid temperature sensor
Kickdown servo switch GAIT>
Pulse generator
Radiator fan motor
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