mfi relay 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
TSB Revision

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
TSB Revision

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.
TSB Revision

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
TSB Revision1

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
TSB Revision

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
TSB Revision

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
TSB Revision

Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Power Distribution Circuit71
I
/
2B-Y>:5IOD OR
%iMOR
1
B-W
I2B-W
.ENGINECONTROL MODULE.IGNITION COIL.IGNITION POWERTRANSISTOR,MFI RELAY
'REMOTECONTROLLED
MIRROR
.&~[E"~ORY
.ETACS UNITL
TRANSAXLE
f%m"
I
*tf@'$ESS CONTROL
.REAR
INTERMITTENT
WIPER RELAY.AUTO-CRUISECONTROL UNIT.WASHER MOTOR.ETACS UNIT.WIPER MOTOR.MOTOR ANTENNA.WIPER RELAYCONTROL UNIT$~~CJ&~AND TAPE:ABS
POWER RELAY.CONDENSOR 7
(UP TO 1993 October)AiFAyOTOR
.BACK UP LIGHT.LIGHT AUTOMATICSHUT-OFF UNIT
G~GAERoCONTROL UNIT.SPARECONNECTOR+J;&~L"U'SE
MAIN SWITCH(#&i;iE).AIR CONDITIONINGCOMPRESSOR LOCK
CONTROLLER$&JTR.INIC
SUSPENSION.AIR CONDITIONINGCONTROL UNITCONTROL UNIT*RADIATOR*&L"$R MOTORFAN MOTOR
RELAY
.#&lyCRUISE
$i$&NATION$$;NATION
.ETACS UNIT.MOTOR ANTENNACONTROL UNIT
.SPEED SENSbR.ggTDIAGNOSI~
.TURN SIGNALAND HAZARD
FLASHER UNIT.BLOWER MOTORRELAYCHI)
REMARKTHE ABOVE CIRCUIT DIAGRAM SHOWS THE CURRENT FLOW AT THEIGNITION KEY POSITION "ACC", "ON" AND "ST" COMBINED.BE SURE TRACE THE APPROPRIATE CIRCUIT DEPENDING ON THEIGNITION KEY POSITION.
0 (c-59) (c-70) (c-82)
~giJJ~jq$q
LHROlMOOBB
TSB Revision

Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Power Distribution Circuit73
FUSIBLE LINK
-
@
ii
030A
40A
";1
$OA
LIGHTRADIATOR
FAN MOTORAUTOMATIC&-$;-OFF
0m
2R-Lr(L)ON
4
2R-LR-k
41
2R-Lr
HEADLIGHT
2R-L
i.LIGHTAUTOMATIC
SHUT-OFF
UNIT
.&FT"gHNG
2R-L
2R-E
2R-B
LIGHTAUTOMATIC&{Yi-l-OFF
I
2R-f
2B-I
2R-E
I-----_
2L-k
9OA
B-W2L-B
AIRCONDITIONING F;p!E$IC
1.25R-BR-B
,.5,\ 1/\ -
G-Y
1.25R-Cv
010AaOA015A
TURN SIGNAL
AND HAZARDMFI RELAY
FLASHER UNIT
2R-LG-WCOMBINATION
METERCBEAM).FOG.LIGHTQfAi+GHT\i7C
HROlMOlAB
TSB Revision1

Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Power Distribution Circuit75
IGNITION3y; 6
SWITCH
(c-59)
I
IGlVI
2B-YpL52B-W *2L-BIOD OR%ii&!OR
II
B-W
JGENERATOR7RELAY__-_--_-_____-___-_____________
2B-W
.ENGINECONTROL MODULE.IGNITION COIL.IGNITION POWERTRANSISTOR.MFI RELAYTRANSAXLE
ki8%EL
f
,BACK UP LIGHT.LIGHT AUTOMATICSHUT-OFF UNIT$$~TDIAGNOSIS
I$
'ABSPOWER RELAY(UP TO 1993 October).AIR CONDITIONINGCOMPRESSOR LOCK
CONTROLLER
.AIR CONDITIONINGCONTROL UNIT'&#R MOTOR
.BLOWER MOTORRELAYCHI)
.--_--
.ⅇqORY
.ETACS UNIT
+ L-l'#fiBi;'"
.REMOTECONTROLLED
MIRROR
+jjf$ESS CONTROLic
.REARINTERMITTENT
WIPER RELAY
.WASHER MOTOR.WIPER MOTOR.WIPER RELAY
.AUTO-CRUISECONTROL UNIT.ETACS UNIT.MOTOR ANTENNACONTROL UNIT.RADIO ANDTAPE PLAYER.ACTIVE AERO\
CONTROL UNIT.SPARECONNECTOR$@RC~UISE
MAIN SWITCH(jiifb%E)
~f$J&CRUISE.SPEED SENSOR
~'$@~NATION$/$TDIAGNOSIS
.&y&NATION.TURN SIGNALAND HAZARD
FLASHER UNIT
.ETACS UNIT.MOTOR ANTENNACONTROL UNIT
T
REMARKTHE ABOVE CIRCUIT DIAGRAM SHOWS THE CURRENT FLOW AT THE
IGNITION KEY POSITION "ACC","ON" AND "ST" COMBINED.
BE SURE TRACE THE APPROPRIATE CIRCUIT DEPENDING ON THE
IGNITION KEY POSITION.
HROlMOlBB
TSB Revision