Assembly MITSUBISHI 3000GT 1995 2.G Workshop Manual

Downloaded from www.Manualslib.com manuals search engine
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 56CONFIGURATION DIAGRAMS - Interior
INTERIOR
E-07E-08
E-06
‘-OfI/l--c
E-04
\
II/E-27
E-30
1E-25 1 E-i4 / E:22/E-21 1
E-29
E-28
NOTEE-26 E-39
*2 E-23 EJJ, +4 ,520*I: From 1993 models
l *: From 1994 models
E-01
E-02
E-03
E-04
E-05
E-06
E-07
E-08
E-09
E-10
E-11
E-l 2
E-13Body wiring harness (RH) and door wiring
harness (RH) combination
Vanity mirror illumination light (LH)
Door mirror (RH)
Door speaker (RH)
Dome lightPower window sub switch
Vanity mirror illumination light (RH)
Power window motor (RH)
Door light (RH)Door key cylinder unlock switch (RH)
Door lock actuator (RH)ABS control unit
ABS resistor
-=zAWD>*~
E-14
E-15
E-16
E-17
E-18
E-19
E-20
E-21
E-22
E-23
E-24
E-25
E-26
E-27
Front seat belt solenoid (RH)
Door switch (RH)
ABS rear speed sensor (RH)
Light automatic shut-OFF unit
Rear intermittent wiper relay
ABS rear speed sensor (LH)
Front seat belt solenoid (LH)
Door switch (LH)
Door lock actuator (LH)
Door key cylinder unlock switch (LH)Front seat belt switch (RH)
Door light (LH)Front seat belt switch (LH)
Power seat assembly
ITSBionI

Downloaded from www.Manualslib.com manuals search engine 58CONFIGURATION DIAGRAMS - Luaaaae Compartment
LUGGAGE COMPARTMENTpIl --.
-
F-11
F-12
F-13
F-14
F-15F-F-16
F-34
NOTE
(1) l ‘:From 1993 mod
[;I I’,: Up to 1994 models-_
: Up to 1993 models
F-01
F-02
F-03
F-04
E-05
F-06
F-07
F-08
F-09
F-l 0
F-11
F-12
F-l 3
F-14
F-15
F-l 6
F-17
F-l 8
F-l 9
F-20
Interior temperature sensor
Defogger
(+)
Rear wiper motorHigh-mounted stop light or active aero rear
spoiler
Defogger (-)
Rear speaker (RH)
ECS rear shock absorber (RH)
Luggage compartment lightABS resistor

Rear combination light (RH)
Back-up light (RH)
ECS control unit
ECS control unit
Body wiring harness (RH) and fuel tank wiring
harness combination
Rear washer motor
Fuel tank
License plate light (RH)Body wiring harness (RH) and rear bumper
wiring harness combinationBody wiring harness (LH) and body wiring
harness (RH) combinationBody wiring harness (LH) and body wiring
harness (RH) combination
F-21
F-22
F-23
F-24
F-25
F-26
F-27
F-28f-29
F-30
F-31
F-32
F-33
F-34
F-35
F-36
F-37
F-38
F-39
F-40
License plate light (LH)
Luggage compartment light switch
Liftgate cylinder lock switch
Liftgate switch
Back-up light (LH)Active exhaust control
unit*2Active aero control unit
Active aero control unit
Active exhaust actuator
assembly*2
Rear combination light (LH)
Motor antenna control unit
ECS rear shock absorber (LH)
Rear speaker (LH)Body wiring harness (LH) and
liftgate wiring
harness combinationBody wiring harness (LH) and
liftgate wiring
harness combination
Telephone
cable*3
Spare connector (Wireless telephone unity3
Spare connector (Hand free
controller)*3
Jumper connector (or Hand free controller)*3CD
changer*’
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Downloaded from www.Manualslib.com manuals search engine 176CIRCUIT DIAGRAMS - Cooling Circuit
COOLING CIRCUIT (UP TO 1993 MODELS)
‘LJ\
IGNITIONIGNITSWITCH(IG2)SWITCINIGl)FUSIBLE LINK@
2R-B
2R-B
28-h2L-B
7
b
“t
'""I, L-RI + 0.85B-W
T
tL-RI
2L-GL-R2L-GL-R0.85B-W
5,l,,511
(A-04X)I\fi RADIATOR A59 (D-04)7T
-------&!EA?oToR-------
;,ON\I (LO) (HI).OFF-:flN\/ _L
43I43
L-Bh28
G-BL-Y
JOFF-
2L-Y
2L-YG-B
01
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L-B
L-BG-B
,36/ZPI
(D-45)7
L-Y
2
d
ENGINE
1 d
1
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COOLANT
LEVEL SENSOR
OFF -0; (A-56)
iBRESISTOR
L
RADIATOR FAN ASSEMBLY(A-55)
2E
2E
6
HRO-SMOOAA
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Downloaded from www.Manualslib.com manuals search engine 178CIRCUIT DIAGRAMS - Cooling Circuit
COOLING CIRCUIT (1994, 1995 MODELS)
(FEDERAL)
FUSIB ELINK 5bIGNI:SWIT(3N(IG2)IGNITIONSWITCH(IG1)
B-W
2.-_______--____
2R-B
,FULL AUTO A/C
2R-B.MANUAL A/CA
2L-E
(c-82)
(c-69)
METER AND GAUGES
TURN-SIGNAL
LIGHT AND
HAZARD LIGHT
L-F
(A-04X)
L-I
I'
(A-07X)
3
,2 (C-31)25 (D-45)
L-Y 7G-B..2
(A-56),\ENGINE
ENNTOFF '?ON- SENSOR
R 1
2L-GL-k
1,,5
I
RADIATOR;;EA~OTOR-------___
(LO)(HI) OFF-:iJN
3
'4
2BG-E
x----~~~----~~~~-~-------
G-B
‘TrIN
1
i
2B
L-E
1
L-EG-l
11---
2L-Y
-
VEHICLE
!%kAND %i%R
pW#IATOR :
ASSEMBLY :(RESISTOR) .
r(A-55):G-Y
ELC-4A/TI53___- __-- ------166------------@--.&J(C-53)
2B
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Downloaded from www.Manualslib.com manuals search engine 180CIRCUIT DIAGRAMS - Cooling Circuit
COOLING CIRCUIT (1994, 1995 MODELS)

f$+yT” b,C~:Al’;f’ _____ ffJYG’: B-w 1
122R-BI.MANUAL A/CCHARGING""I-,, nm.nnKHJJIHIUKFAN
ASSEMBLY
RADIATOR
FAN MOTOR
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m2L
!2L-G
METER AND I
(A-04X)
HiW’ AToRASSEMBLY(RESISTOR)
2B
L-
L-E
LIGHT
SAUGES1 5
LIGHTANDRADIATORHAZARD LIGHT
;fi~,~OTOR
(LIO)(HI) OFF-:/ON\/3 4
28
11---------------------------
G-BL-Y fG-B,
VEHICLE
.R $&/ND ;&i$;R
ENGINE
COOLANT
$;lgiEATURE
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Buzzer Circuit211
OPERATION
L
lBattery positive voltage is continuously applied to the key-reminder switch.l
If the driver’s door is opened (door switch ON) with the key inserted in the ignition switch (key-reminderswitch ON), the buzzer sounds to warn that the key has been left in the switch.
&eat belt warning>
lWhen the ignition switch is turned on, the timer circuit and pulse circuit will flicker the seat belt warning
light for approx. 6 seconds with the buzzer intermittently sounding.
lIf the seat belt is fastened for the while, the seat belt switch will be turned off and the buzzer will
stop.
TROUBLESHOOTING HINTS
/
L
ProblemCheck methodThe key-reminder The seat belt warning function l
Check the door switch.
warningdoesn’t is OK.(Refer to GROUP 42-Door Assembly.)
sound.The seat belt warning also l Check the buzzer.
doesn’t function.(Refer to GROUP 52A-Seat Belt.)
The seat belt warn-The seat belt warning light lCheck the seat belt switch.
ing doesn’t
func- flashes.(Refer to GROUP 52A-Seat Belt.)
tion.The seat belt warning light l Check the key-reminder switch.
also does not function (and(Refer to GROUP M-Ignition Switch.)
the key-reminder warning
also does not function).
The buzzer doesn’t stop even through the driver’slCheck the seat belt switch.
seat belt has been buckled.(Refer to GROUP 52A-Seat Belt.)
The seat belt warning light doesn’t flashes (but thelCheck the light bulb.
buzzer sounds).lCheck the key-reminder switch.(Refer to GROUP 54-Ignition Switch.)
lCheck the seat belt switch.
(Refer to GROUP
52A-Seat Belt.)
The warning light does not flash and the warninglCheck the ignition switch input signal.buzzer also does not sound.(Refer to GROUP 52A-Troubleshooting.)l Check the key-reminder switch.
(Refer to GROUP 54-Ignition Switch.)
lCheck the seat belt switch.
(Refer to GROUP 52A-Seat Belt.)
The warning light flashes, but the warning buzzer l
Check the key-reminder switch.
does not sound.(Refer to GROUP M-Ignition Switch.)lCheck the seat belt switch.
(Refer to GROUP 52A-Seat Belt.)
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Power Window Circuit221OPERATION
lTurn on the ignition switch, and the transistor Tr will be turned on by the timer circuit. This will turn
on the power window relay allowing the power window to be opened and closed.
lTurn the ignition switch from on to off, and the timer circuit will be activated to keep transistor Tr
on for 30 seconds allowing the power window to be opened and closed.
Moreover, if the front door is opened, the timer circuit will stop to turn off the transistor Tr. This
will prevent the window from being opened and closed.
TROUBLESHOOTING HINTS
’
PhenomenonInspection method
All door windows cannot be opened or closed.
eCheck fusible link No. 9.
0 Check the power-window relay.
lCheck the power-window main switch.
One of the door windowsNeither of the power- l
Check the power-window main switch.cannot be opened or
window switches (main l
closed.
Check the power-window motor for the power window that
or sub) operatesdoes not operate.Either the power-win- lCheck the power-window switch for the power window
dow main switch or subthat does not operate.
switch does not oper-ate.
The one-touch down switch function only does notlReplace the power-window main switch.
operate.
The power windows do not operate when the ignition
lCheck the ignition switch input signal. (Refer to GROUP
switch is at the “ON” position.
42-Troubleshooting.)
0Check the ignition switch. (Refer to GROUP 54-Ignition
Switch.)
lCheckthepowerwindow relay. (RefertoGROUP42-Power
Window)The power windows can be opened and closed l
Check the front door switch input signal. (Refer to GROUP
immediately after ignition switch is switched “OFF”,42-Troubleshooting.)
but the power window operation does not stop if al
front door is opened within 30 seconds.
Check the front door switch. (Refer to GROUP 42-DoorAssembly.)
The opening and closing operations of the power l
Check the power window relay. (Refer to GROUP 42-Power
windows are possible after the timer operation timeWindow.)
has elapsed when the ignition switch is set to the
“OFF” position.
/
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Central Door Locking Circuit237
OPERATION/
Li!l
When the door lock switch is set to the LOCKside (or UNLOCK side), the LOCK side (or
UNLOCK side) of the door lock relay is turned
ON and the door actuators of all doors operate.l
If the driver seat side door (or assistant seat
side door) is opened and the driver seat side
inside lock knob (or assistant seat side inside

0
,’
id
0
With the driver’s and front passenger’s doorsunlocked, press the LOCK switch of the
transmitter, and the door lock signal output (0V) will be sent from the
keyless entry control
unit terminal No. 12 closing the door lock powerrelays 1 and 2 to lock the driver’s and front
passenger’s doors.
While the R.H. and L.H. doors are in the lockedstate, press the UNLOCK switch of the
transmitter once, and the DOOR UNLOCK
switch signal (0 V) will be sent from the keylessentry control unit terminal No. 14 closing the
door lock power relay 2 to unlock the driver’s
door.
Under the above-mentioned conditions, further
press the UNLOCK switch of the transmitter,and the DOOR UNLOCK signal output (0 V)
will be sent from the keyless entry control unitterminal No. 13 closing the door lock power
relay 1 to lock the front passenger’s door.
When the keyless entry system is operated toturn the driver’s door lock switch from the
UNLOCK position to the LOCK position, thelock knob) is locked with the key inserted in
the ignition switch, the ETACS unit grounds the
unlock side circuit of the door lock relay to unlock
all doors. This way, failure to remove the key
is prevented.dome light/foot light blinking signal output
(system voltage) will be sent twice from the
keyless entry control unit terminal No. 11 when
the door lock switch is turned from the LOCK
position to the UNLOCK position, the lighting
signal output (0 V) will be provided for approx.
3 seconds.
NOTE
The dome light winks or comes on when the domelight switch is in the DOOR interlock position.
However, the dome light does not wink while it .is
ON for 6 seconds after closing the door by ETACS
function.Besides the above-mentioned operations, the
keyless entry control unit has the following functions.l
If any door is not opened or closed within 30
seconds from unlocking the door by means ofthe
keyless entry system, the door is
automatically locked.In addition, if the
cryptographic code other than the code storedin the receiver memory is received 30 times
in one minute continuously, operation of the
unit is suspended for 10 minutes.l
Operation is also suspended if the ignition key
remains inserted (key reminder switch: OFF)
and either door is left open (door switch: ON).TROUBLESHOOTING HINTS

Phenomenon
Inspection method
One of the door lock actuators fails to operate.
0Check the door actuator which fails to operate.
No unlock operation can be made by pressing door lock0
knob after fulfilment of following conditions.Check the key reminder switch input signal.0Check the key reminder switch. (Refer to GROUP
0Insertion of key in ignition switch (key reminder switch54-Ignition Switch.)
OFF)0
0Opening of door (door switch ON)Check the front door switch input signal.0 Check the front door switch. (Refer to GROUP
42-Door Assembly)
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Downloaded from www.Manualslib.com manuals search engine 242CIRCUIT DIAGRAMS - Manual Air Conditionina Circuit
MANUAL AIR CONDITIONING CIRCUIT (1992 MODEL)
FUSIBLE LINK @IGNITION SWITCH(IG2)II
2R-BI2L-BI
/#PAToRASSEMBLY
(
J/B
(A-55) "5
2L-G
0
I
I1
III
2L-G
L-RI
I51
m'. RADIATORij i;ijCA:OTORr -
OFF-,>IN
5---+II3-
2B
2L-Y
2L-R
I I
Ei;IATOR (A-55)
ASSEMBLYB
28
I
2B6
HR12MOlAA
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