1994 MITSUBISHI 3000GT relay

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
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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
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - ELC-4 A/T Circuit187 ,
IGNITSWITC
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - ELCQ E\TT Circuit191
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HR07MOlAB
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - ELC-4 A/T Circuit199
TAILLIGHT RELAY
l.r
OVERDRIVE AND~~~~~~ECONOMY
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HR07M03AB
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Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Power Window Circuit
219
POWER
WINDOWS
RELAYIGNITI
A
I
SWITCl
B-W2B-r,
L-'y'rCHARGING
J/B.TENSION-REDUCER
TYPE SEAT BELT
L-Y1
L-‘i
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(c-66)u
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TIMER1CIRCUIT/1
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I(c-80) (c-77)“1(c-8:!
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FOG LIGHT
HEADLIGHT
TAILLIGHT,PARKING/SIDE
MARKER LIGHT AND LICENSER-GY-WB-IPLATE LIGHT
IY
\DOOR LIGHT AND
LUGGAGE COMPARTMENT
LIGHT
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DATA LINK
CONNECTOR
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PLATE LIGHT
.FOG LIGHT6.HEADLIGHT.DOME LIGHTsFOOT LIGHTAND IGNITION KEYCYLINDERNOTEILLUMINATION LIGHTxl:VEHICLES WITHOUT0 THEFT-ALARM SYSTEM:2:VEHICLES WITH THEFT-ALARM SYSTEM
IODSTORAGE
CONNECTOR
(A-11X)
HRllMOGAB
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Downloaded from www.Manualslib.com manuals search engine 220
CIRCUIT DIAGRAMS - Power Window Circuit
COMPONENT LOCATION
Name
Symbol
Name
Data link connector (up to 1993 models)
AETACS unit
Data link connector (from 1994 models)
DPower window relaySymbol
C
B
JKTY16FO354

\Y16FO498
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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.
/
i
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