cooling MITSUBISHI 3000GT 1993 2.G User Guide

Downloaded from www.Manualslib.com manuals search engine 184CIRCUIT DIAGRAMS - Cooling Circuit

TROUBLESHOOTING HINTS1. Neither the radiator fan nor condenser
fan rotate at all.l Check fusible link No. 5
2. Only the condenser fan does not
operate.l Check dedicated fuse No. 8.
3. The radiator fan and condenser fan do
not operate in the low speed mode, but
operate otherwise.(1) The
AK compressor magnet clutch does
not enter the “ON” state.
lCheck whether the output of the auto
compressor control unit is available.
NOTE
For troubleshooting of the air conditioningcontrol unit, refer to GROUP 55.
(2) The A/C compressor magnet clutch enters
the “ON” state.l Check the resistor.
lCheck the radiator fan motor relay (LO)
and condenser fan motor relay (LO).l
Check the therm0 sensor (for radiator
fan).
(3) The radiator fan does not rotate when the
air conditioning switch is turned ON.l Check the radiator fan motor control
relay.4. The radiator fan and condenser fan do
not operate in the high speed mode, but
operate otherwise.l Check the
therm0 sensor (for condenser
fan).l
Check the radiator fan motor relay (HI) and
condenser fan motor relay (HI).Fan Operating Mode
ant temperature
switch (for air
conditioning
cut-Radiator fan mo-
3°C(239 f 5°F) orover, ON at 108°C
OFFONLOW
LOW
ON
ONHIGHHIGH
ON
OFFHIGH
LOW
TSB Revision

Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Cooling Circuit185

OPERATIONThe engine control module controls the power
transistors (high speed and low speed) in the moduleto provide radiator fan motor and condenser fan
motor rotation controls in accordance with the engine
coolant temperature and vehicle speed.
NOTEIn the event of faulty water temperature sensor,
the engine control module commands the fan motors
(for both radiator and condenser) to rotate at high
speeds.1. Radiator Fan (Low Speed Rotation)
l
When the engine control module turns onthe power transistor (low speed) in the
module, the current flows from the ignition
switch to the engine control module throughthe radiator fan motor relay (LO) coil.
If the current flows to the fan motor relay
coil, the switch of the relay turns on to supplythe motor driving power (for low speed
rotation). This will cause the current to flow
from the battery to the ground through the
radiator fan motor, relay switch and resistor,rotating the radiator fan at low speeds.
2. Condenser Fan (Low Speed Rotation)
l
The power from the NC compressor lock
controller turns on the condenser fan motorrelay (LO) to rotate the condenser fan at
low speeds.3. Radiator Fan, Condenser Fan (High
Speed Rotation)l
When the engine control module turns onthe power transistor (high speed) in the
module. the radiator fan motor relay (HI)
and condenser fan motor relay (HI) will
operate and the motor driving power (for
high speed rotation) is sent to the radiator
fan motor and condenser fan motor to rotate
the radiator fan and condenser fan at high
speeds.
TROUBLESHOOTING HINTS1. Neither the radiator fan nor condenser
fan rotate at all.
l Check fusible link No. 5.
2. Only the condenser fan does not
operate.l Check dedicated fuse No. 8.
3. The condenser fan do not operate in the
low speed mode, but operate otherwise.
(1) The A/C compressor magnet clutch does
not enter the “ON” state.l Check whether the output of the air
conditioning compressor lock controller
unit is available.
(2) The A/C compressor magnet clutch enters
the “ON” state.l
Check the condenser fan motor relay
(LO)-4. The radiator fan and condenser fan do
not operate in the high speed mode, but
operate otherwise.l Check the engine control unit.
Fan Operating Mode
VehicleA/C compressor lockspeedcontroller output
k%
80 or less[50 or less]
LO
(OV)
80 or more[50 or more]HI (12V)
,_ -
Engine coolanttemperature
$1
Approx. 95 [203] or less
Approx. 95
[203] or more
Approx. 105
[221] or more
Approx. 105
[221] or less
Approx. 105
[221] or more
Approx. 105
[221] or less
Approx. 105
12211 or moreTransistor
Transistor
in enginein engineRadiatorCondensercontrol unitcontrol unitfanfan
Low speedHigh speed
OFF
OFFOFFOFF
ONOFFLow speedOFF
ON
ONHigh speedHigh speed
OFF
OFFOFFOFF
ONONHigh speedHigh speed
ON
OFFLow speedLow speed
ON
ONHigh speedHigh speed
1 TSB Revision1

Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Auto-cruise Control Circuit 4/T>393 ~
GHT
IGNITIONSWITCH(IG1)FUSIBLE LINKaxi
2R-W:
NOTE1.25R-W:
:l:HATCHBACK:2:CONVERTIBLEFwCATEDHORN5W-B
,,l (c-68)G-
J/B [4,
(F)R-I
015A
T(c-77)6
O.BSB-WjB-k
8G-W
'HEATER.MANUAL A/C G-'.FULL AUTO A/C
AUTO-CRUISE
CONTROL UNIT
(c-37)
.MFI SYSTEM.FULL AUTO A/CR-B
I
IO-GE
16CONNECTOR (A-11X)
24
METER AND GAUGES B-1
B-Y
. COOLING. MFI SYSTEM(c-15
B-1
21B-Y
I
i
1 1.l
I
RHEOSTAT 2B BI4 5 16
. MANUAL A/C
. RADIO AND
TAPE PLAYER. E;;/WiE;TE
4(F>Y
1
SPEEDSENSOR
5M36AB
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Downloaded from www.Manualslib.com manuals search engine 54-94CHASSIS ELECTRICAL - Lighting System
CIRCUIT DIAGRAM (FROM 1995 MODELS)
IGNITIONSWITCH(IG1)BATTERY;di\IGHT
28-W2R-W
B-W2B-W6 00l;akCATED15A
CHARGING
,,7(c-82)0.85R-B1G-WS(c-69)-----------_/\J’BI no
1.CHARGING.MFI SYSTEM'COOLING$F!;E$qAND
.WARNIiG LIGHT
I,,
0.85G-C810.85G-06B-Y 2
(D-41)::q (D-43)1
‘$1RHEOSTAT
0.85G-00.85G-0
Ii
I \"w\/\/b/---- -------- --------a‘% ‘52‘3---_‘2'8"9-- '6m2 DiI I2
si
d: O.BSG-L
B-W0.85G-R
0.852 L1:
B-W/ I
2B
TURN SIGNAL
AND HAZARD
FLASHER UNIT
:E-30)
NOTE::UP TO 1995 MODELS
dHROSM02AA
/ TSB Revision

Downloaded from www.Manualslib.com manuals search engine 54-96CHASSIS ELECTRICAL - Lighting System
CIRCUIT DIAGRAM (FROM 1995 MODELS)
IGNITIONSWITCH(IG?)BATTERY;&IGHT
2B-W1.25R-W
0DEDICATED
FUSE
15ACHARGING2B-wL
,,7 :c-82)0.85R-B lG-W 6 (c-69)/\J’BI mo
-___----____/\I\
B-W
f-
D-44)% ---- :T2 ------ -$~e---m--.~s---:~8%I I&
Og;G-WA&n
*3> “$2“i;“=!0.85
0. 85G-RI
B-WG-W
I/x5 .\7A10e9 x.3wmj,\. p!&'
OFF-c. ON
lOFF--. ON5 loF1;F-~oN m'R% thnrnnnb
G-W
1. .----iND
- - v.85G-L
0.85G-R
2 cc/ I.
E(D-06)IOX
'E%T'~~~J~~SPECTION
.REAR WINDOWDEFOGGERE#@;.NIC
SUSPENSIONzl
A
o,d3°gt12
B
\y---- --------
:c-?:,jE p2w
*\L &I--
a-7j% 166
“$ZI0.85G-W
G-RI I2 CL
& &I I
I
0.8%-(
(D-41)
38
I
0.85G-06
1:s; (D-43)RHEObAT0.85G-Y
qIt.CHARGING0.85G-C.MFI SYSTEM.COOLING+&$&ANDI.WARNING LIGHT
28
TURN SIGNAL
AND HAZARD
FLASHER UNIT
(E-30)
NOTEx1:1995 MODELSX2:FROM 1996 MODELS
HR09M03AA
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Downloaded from www.Manualslib.com manuals search engine ALPHABETICAL INDEX1
A
iiABSPOWER RELAY, Check . . . . . . . . . . . . . . . . . . . . , . . .
35-82-lRELAY.............................................35-110-1SIGNAL, On-vehicle Inspection.................13A-176,277-iACCELERATOR
CABLE..............................................
17-4-l
SWITCH
...............................23-51-l
........................17-4-l
ACTIVE AERO SYSTEM, Check.........................
51-7-l
ACTIVE EXHAUST
CONTROL UNIT, On-vehicle Inspection..........13A-173,274-lSYSTEM............................................15-40-l
AERO PARTS........................................51-19-lAIR BAG..........................................520-74-lMODULE......................................528-82, 87-lAIR CLEANER.........................................15-9-l
ELEMENT, Maintenance..............................00-45-lAIR CONDITIONING...................................55-3-l
.....................................55-54-l
.......................................55-6-lCOMPRESSOR.....................................55-79-l COMPRESSOR DRIVE BELT, Adjustment...............
55-18-lCONTROL PANEL...................................55-73-lCONTROL UNIT.....................................55-73-lENGINE COOLANT TEMPERATURE SWITCHEngine Cooling.....................................14-13-l.....................................55-79-l......................................55:53-lPOWER RELAY.....................................55-29-lPOWER TRANSISTOR...............................55-74-lSWITCH............................................55-33 -1Emission Control....................................17-65-lOn-vehicle inspection.........................13A-123,236-lANTENNAMotor............................................54-188-11FEEDER CABLE...................................54-188-11ANTI-LOCK BRAKE SYSTEM....................Refer to ABS
ASSIST LINK ..................................34-35-iAUTOMATIC TRANSAXLE.............................23-64-l
Maintenance
.........................................00-49-IAXLE
Rear
............................................27-6-l............................................27-2-l
HUB, Rear -&VD>
....................................
27-4-lSHAFT ......................................27-16-l
B
BALL JOINT SEALS, Maintenance. . . .
BAROMETRIC PRESSURE SENSOR
On-vehicle Inspection . . . . . . . . . . . .BASIC IDLE SPEED, Adjustment . . . . . .
BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . .
Discharged, Remedy . . . . . . . . . . . .
BELT LOCK CONTROLLER . . . . . . . . .
BLOWER. . . . . . . . . . . . . . . . . .
BOOSTER, Clutch . . . . . . . .BOOST METER, On-vehicle InspectionBRAKE
Parking. . . . . . . . . . ..*.............
BOOSTER . . . . . . . . . . . . . . . .
Operating Check . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .00-52-l
..........13A-91,217-l..............
13A-55-l................64-3-11................35-82-l............55-32,74-t................
55-35-l.................21-6-l.........13A-171,273-l
.................36-8-l................35-87-l................35-64-l
DISC..........................................35-93,103-l
Front, Check.......................................35-70-IRear, Check........................................35-73-lFLUID LEVEL SENSOR, Check........................35-64-l
HOSES, Maintenance.................................00-52-I
LINE................................................35-91-lLINING.............................................35-74-lPAD
Disc, Front.........................................
35-66-l
Disc, Rear.............~..................>..........35-71-lPEDAL.............................................35-84-l
Check and Adjustment......................
:........35-63-lBUMPERFront...............................................51-8-lRear...............................................51-13-l
CAMSHAFT
OIL SEALS..........................................
11-21-lPOSITION SENSOR, On-vehicle Inspection......13A-103,225-lCATALYTIC CONVERTER..............................17-71-l.......................................15-30-l
.
..........................................
15-33-lCD AUTO CHANGER................................54-191-11CENTER PILLAR GLASS..............................42-33-l
CENTRAL DOOR LOCKING SYSTEM...................42-49-lCHARGE AIR COOLER................................15-11-l
CHARGING SYSTEM..................................l.6-2-11CIGARETTE LIGHTER..............................54-123-k
CLOCK SPRING, SRS..............................528-74-I
CLOSED THROTTLE POSITION SWITCH
Adjustment.......................................
13A-57-lOn-vehicle Inspection.........................13A-101,223-lCLUTCH
BOOSTER OPERATING, Check .................21-6-lCONTROL..........................................21-l O-ICOVER.............................................21-20-lDISC...............................................21-20-I
MASTER CYLINDER.................................21-14-lPEDAL..............................................21-8-lCheck and Adjustment................................21-5-l
RELEASE CYLINDER................................21-16-IVACUUM LINE cAWD>...............................21-18-I
COLUMN SWITCH..................................54-112-11COMBINATION GAUGES.............................54-33-kCOMBINATION LIGHT...............................54-106-11COMBINATION METERS.............................54-31-11COMPRESSOR CLUTCH RELAY,On-vehicle Inspection...........................13A-123,236-lCONDENSER.....................................55-79-l.....................................55-79-l CONTROLLER, Belt Lock..............................55-32-lCONTROL UNIT
Active Exhaust, On-vehicle Inspection...........13A-173,274-lECS.............................................338-20-I
Electronic CABS>..................................35-119-l
CONTROL VALVE.....................................37B-9-l
Fuel Tank Pressure..................................13F-6-IInspection..
........................................17-65-l
CRANKSHAFT
FRONT OIL SEAL....................................
11-25-lPOSITION SENSOR, On-vehicle Inspection......13A-107,227-l
REAR QIL SEAL.....................................11-26-l

Downloaded from www.Manualslib.com manuals search engine ALPHABETICAL INDEX
CROSSMEMBER......................................32-8-lCRUISE CONTROL......................................17-t
CABLE, Check and Adjustment........................17-31-l
SYSTEM............................................17-38-i
Check.............................................
17-32-l
CURB IDLE SPEED, Check............................11-11-l
CYLINDER HEAD GASKET............................11-28-l
D
DAMPER CONTROL MOTOR..........................55-75-lDAMPING FORCE CHANGEOVER ACTUATOR........338-19-I
DASHPOT, Check And Adjustment......................11-l 3-lDEFOGGER
Rear Window.....................................54-192-11
RELAY............................................54-204-11
SWITCH, Rear Window.............................54-203-11
DIFFERENTIALCase, Limited Slip cAWD>...........................27-40-ILimited Slip, Check cAWD>..........................27-15-tCARRIER ....................................27-25-l
DISC BRAKEFront..............................................35-93-lRear..............................................35-103-I
PADS, Maintenance..................................00-52-I
DOOR...............................................42-41-l
Adjustment.........................................42-12-lGLASS.............................................42-43-l
HANDLE............................................42-47-l
INSIDE HANDLE, Play Check..........................42-16-l
LATCH..............................................42-47-lMIRROR............................................51-31-l
REGULATOR........................................42-43-l
TRIM...............................................42-42- 1WATERPROOF FILM.................................42-42-lWINDOW GLASS, Adjustment.........................42-12-l
DRIP LINE WEATHERSTRIP...........................42-63-lDRIVE BELTCompressor, Adjustment.............................55-18-l
Maintenance.......................................00-47-I
Tension, Adjustment..................................11-7-l
Tension, Check.....................................37A-9-l
DRIVE SHAFTFront..............................................26-12-lRear...............................................27-19- I
BOOTS, Maintenance.................................00-52-l
OIL SEALS, Replacement
.......................23-53-l
........................................22-15-l
.........................................22-5-l
E
ECSOn-vehicle Inspection..............................,338-l 1 -I
CONTROL UNIT...................................338-20-IINDICATOR LIGHT.................................338-19-ISWITCH..........................................338-18-I
EGR
SOLENOID..........................................17-70-l
On-vehicle Inspection.........................13A-164,269-l
SYSTEM, Inspection..................................17-67-l
TEMPERATURE SENSOR............................17-68-l
On-vehicle Inspection.........................13A-i35,246-I
VALVE..............................................17-68-l
VALVE CONTROL VACUUM, Check....................17-67-l
ELECTRICAL LOAD SWITCH, On-vehicle Inspection 13A-127,238-l
ELECTRONIC CONTROL UNIT
CABS>.................35-119-l
ENGINE.............................................11-18-l
CONTROL...........................................17-5-lCOOLANT
Maintenance.......................................00-51 -IReplacement........................................14-4-l
COOLANT TEMPERATURE GAUGE UNIT..............14-13-l
COOLANT TEMPERATURE SENSOR
Engine and Emission Control.........................17-65-l
Engine Cooling.....................................14-13-IOn-vehicle Inspection..........................13A-93,219-lHOOD..............................................42-18-l
MOUNTING..........................................32-3-lOIL, Maintenance....................................00-47-l
OIL COOLER........................................11-36-lOIL FILTER, Maintenance.............................00-48-l
ROLL STOPPER......................................32-6-l
SPEED ADJUSTING SCREW, Adjustment.............
13A-59-l
EVAPORATIVE EMISSION
CANISTER..........................................
17-65-l
CONTROL SYSTEM.................................17-57-l
Check for Leaks and Clogging........................00-46-l
PURGE SOLENOID..................................17-64-lOn-vehicle Inspection.........................13A-162,268-lEVAPORATOR........................................55-37-lEXHAUSTGAS RECIRCULATION (EGR) SYSTEM................17-66-l
MANIFOLD
.......................................15-26-l
...........................................15-28-l
PIPE
.......................................15-30-l
...........................................15-33-l
SYSTEM
Active.............................................15-40-l
Maintenance.......................................00-60-l
F
FAN MOTORCondenser
.....................................55-79-l......................................55-46-l
RELAY, On-vehicle Inspection...................13A-129.240-t
FEEDER CABLE, Antenna...........................54-188-11FENDER.............................................42-24-l
FILLER TUBE CAP, Fuel Tank, Check....................17-65-lFLOOR CONSOLE..................................52A-1 O-I
FLOOR PAN, Check...................................42-16-l
FOG LIGHT........................................54-105-11
SWITCH..........................................54-109-11FRONT IMPACT SENSORS..........................526-68-l
FUELFILLER DOOR, Adjustment............................42-12-l
FILTER............................................13F-10-I
GAUGE UNIT........................................13F-6-IHOSES, Maintenance.................................00-45-l
LINE................................................13F-8-I
PRESSURE SOLENOID, On-vehicle Inspection...13A-166,270-l
PRESSURE TEST, On-vehicle Inspection........13A-180,279-lPUMP..............................................13F-6-I
On-vehicle Inspection..........................13A-72,200-l
PUMP CIRCUIT RESISTOR, On-vehicle Inspection .
13A-84,211-lPUMP OPERATION CHECK, On-vehicle Inspection 13A-179,279-lPUMP RELAY N0.2, On-vehicle Inspection........13A-84,211-l
SYSTEM, Maintenance...............................00-45-I
FUEL TANK..........................................13F-3-IFILLER DOOR.......................................42-23-lFILLER TUBE CAP, Check............................17-65-l
PRESSURE CONTROL VALVE........................
13F-6-IInspection..........................................17-65-l
FULL AUTO AIR CONDITIONING.......................55-54-l