1993 MITSUBISHI 3000GT engine coolant

Downloaded from www.Manualslib.com manuals search engine 182CIRCUIT DIAGRAMS - Cooling Circuit
COOLING CIRCUIT (FROM 1996 MODELS)
2L-B
(C-82)J/B
@
i10A(c-69)
IGNITIONIGNITIONSWITCH(IG2)SWITCH(IG1)
---pqF-JNG
1
2R-B2R-BI+.MANUAL A/C'FULL-AUTO
AIR CONDITIONING
01METER AND GAUGES
L-l
I
(A-07X)
TURN-SIGNAL
LIGHT AND
HAZARD LIGHT
L-R
2L-GL-fr-b---
5
(A-04X)
I
?
1
1
I k---------
2L-G
L-R
,,51RADIATOR/\
Kk!A!oToR---------_
(LO)(HI) PFF-..b
I4
2BG-B
11G-B__---____----------_------IN
i
1
2E
L-E
Gj~~~~~ G-B
(A-56)
G-BJ
L-EG-E
112L-Y
Bll
ENGINE
COOLANT
~~/;;~A'""" VEHICLEMETER AND @;RGAUGES
Y-W
EL&4A/T 1
201 86---_--------_-1 92-----
2EHROGMOBAA
1 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 244CIRCUIT DIAGRAMS - Manual Air Conditioning Circuit
MANUAL AIR CONDITIONING CIRCUIT (1992 MODEL) (CONTINUED)
G-R
G-R
(A-67)
G-R
(G-R)G-R
AIR CONDITIONING
ENGINE COOLANT
&#FF'EATURE
ON-OFF:115’C(239’F)OFF-ON: 108’ C (226’ F)
L-R
(c-54)
r-
3----1IIIIII
I
I
!III
I I
IIIIIIi
115
G-O 2(G-0)
ON-OFF:210kPa (29.9~~ i)OFF-ON: 235kPa (33.4~5 i )ON-OFF
,\”DUAL;;FPJE;RE
(A-35):2100kPa(299Psi)
'1
W-G
,,s
THERMOSTAT'ON-OFF:155’C(311’F)OFF-ON: 110’ C (230’ F)OFF ‘*ON,(B-20) G-R“3
4t
EYWKB SEb
r-----I
i G-I;IIIIIII
I
I
I/I/
1 L
j G-k
L-----
B-\
pbw;;1c
RELAY
(A-33X)
B-W
.----___
G
-------
G
B-W
,-
ENGINE
E!6EL
COMPARISON
COMPRESSOR SPEED
OPERATION CIRCUIT
-
--3
1
(Y-G
IO.----
9
13
0 cci5) GEE)(B-03) [B-20) (c-02)(c-52)
HR12MOlBA
TSB Revision

Downloaded from www.Manualslib.com manuals search engine 260CIRCUIT DIAGRAMS - Manual Air Conditioning Circuit
MANUAL AIR CONDITIONING CIRCUIT (1994, 1995 MODELS)

2L-G
I
!$FAToRASSEMBLY(RESISTOR)
(A-55)
2L-'
1
IGNI1:SWITC
2L-E
J/B @
i30A
(c-69)
L-k
(A-04X)----------
B-
2EL-f
L-E
I
I
2L-GIL-R
5
I
RADIATOR
#A!OTOR(LO)(HI) OFF-:/'JN\/i4
G-E2B
G-fI1-------
L-F
F=
r
G-B
(F)YON
(IG2)
------I
ENGINE
COOLANT
1;E/E?QEWATURE
i
1$012 (c-31)
(F)i
3
:LE
iR-
(F)1.258I----
LMFI SYSTEM
I(Fj1.25116.-------_-_--_
(F>B-W
(LO)(HI)
ENGINE
CONTROL
MODULE
{A-04X) (A-07X) (A-55) SE2 (c-29)(c-31)(c-52)(c-54)
HR12M04AA
TSB Revision

Downloaded from www.Manualslib.com manuals search engine 266CIRCUIT DIAGRAMS - Manual Air Conditioning Circuit
MANUAL AIR CONDITIONING CIRCUIT (FROM 1996 MODELS)
IGNITIONSWITCH(IG2)
2R
7(c-69)
2R
REAR WINDOW
Fi/iIATOR
ASSEMBLY
iRADIATOR
FAN MOTCR)
2L-G
I
L-R
2L-G2L-G
I1
L-R
5
(F)E
ENGINE
COOLANT
;[/X?&';;ATURE
(8-02)
L-E2BIG-E11~-~----------------~______
G-B
RADIATOR
FAN
ASSEMBLY
(RESISTOR)
(A-55)
L
EiSLE
j(c-29)SENSOR
I
L-BG-E11-------.
G-YL-R
F=- - - - - - -!O2----
(F)1.256
I----MFI SYSTEM
(F)1.25E
-----------
I
2E
(LO)(HI)
n
HRlPMlOAA
TSB Revision

Downloaded from www.Manualslib.com manuals search engine 282CIRCUIT DIAGRAMS - Full Auto Air Conditioning Circuit
FULL AUTO AIR CONDITIONING CIRCUIT (1993 MODELS) (CONTINUED)
di
1
(F)W-G
G-R
I
(A-67),,9----1IIG-RII0/I
(G-R)(F>G-RIII
vI1$f#W&LEIIMODULE;;l IAIR CONDITIONING ,,IENGINE COOLANTI
;;yfgiATUREI
ON;;,*IOFF 'ON-OFF:llSC(239'F)\II
OFF-ONI
:108'C(226'F)&niI
I
I
III
G-R 3I
(G-0)
I
15-
r
1-
E
1
1
.2
9
(
; G-R
IIIIII10AbIIIIB-W!
I4I/\III------- --FdBr;rE;IC
III\/I"1
O&F 's
i G-Y
"5
B-W
L----+S--------256
0B-W
G(F>%-W
COMPARISON
3
I
(Y-R
-----
1
(Y-G:
10.----
(F>(F>Y-I;Y-G
2
uCL
(c-29)
r
HR12MOGBA
TSB Revision

Downloaded from www.Manualslib.com manuals search engine CIRCUIT DIAGRAMS - Full Auto Air Conditioning Circuit
FULL AUTO AIR CONDITIONING CIRCUIT (1993 MODELS) (CONTINUED)
AIR CONDITIONING
TAILLIGHT RELAYCONTROL PANEL
1.25R-W
KFATEDa---- _--_------.iT--------------.7 r'13F53232
G-W
B-Y
..6 (c-69)77J/BG-WI3(B)/(R-B(ER-iI(W-E
(L-EI)(L-Y
-Le..-"5 (c-83)B-YII!II
19k.2091017I3---------_----x----.----4
9
t
f-J
7----------
j7Ei5.E
B-Y(Y-R)
'I
RHEOSTAT
ENGINE
COOLANT
21;E/;;WATURE
OFF-ON:22.5-30.5’ c(72. 7-86. 7' F)
(c-43)b
IB[:Y-B:(L-W)(Y-k
\
4cI
2B2
(c-27)Q~
tiisiiLET.4b[S;;ERMO
(c-15)(c-16)(c-69)m
(L-W)
(L-W)
(L-W)
_r
12
(c-42)
HR12M06DA
1 TSB RevisionI

Downloaded from www.Manualslib.com manuals search engine 288CIRCUIT DIAGRAMS - Full Auto Air Conditioning Circuit
FULL AUTO AIR CONDITIONING CIRCUIT (1994, 1995 MODELS)
(FEDERAL)
‘d
IGNITIONSWITCH(IG2)FUSIB E
LINKQ
2L-B 2 mr-h J/B
@
(A-04X)------____
1ENGINE
J
COOLANT;~WFdP;WATURE
20\
d
3 2B T" G-BrL-E
311-------------------________
t
12
(C-31) (F)I
G-R
imSLE
I(c-29)SENSORI
L-BG-B11
G-Y
L-R
S(c-52)
(F)1.25B
TMFI SYSTEM
(F>B-hLa’ AToRASSEMBLY(RESISTOR)
(A-55)
Y4YI
2E
[ TSB Revision
HR12M07AA