air condition MITSUBISHI MONTERO 1987 1.G Workshop Manual

Service Manual
MONTERO
1987 : Volume 2
FOREWORD
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 diagnosis,
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.
WE SUPPORT
VOLUNTARY TECHNICIAN
CERTIFICATION THROUGH
MITSUBISHI MOTOR SALES OF AMERICA. Inc.
Mitsubishi Motors corporation reserves the right to make changes in
design or to make additions to or improvements in its products without
imposing any obligations upon itself to install them on its products
previously manufactured.
I
GROUP/SECTION INDEX ‘kme-.
INTRODUCTION ..............................
Electrical ...........................................
Electrical System Parts
Location .........................................
Relays, Control Units, Sensors,
Fuses, Groundings
Inspection of Harness
Connector ......................................
Wiring Harness .............................
Charging System ..........................
Starting System ............................
Ignition System .............................
Meters and Gauges ......................
Lighting System .............................
Wiper and Washer System ..........
Horn ...............................................
Accessory ......................................
Audio System ................................
Back Door Window Defogger ......
Automatic Free-wheeling Hub
Indicator System ..........................
Heaters and Air-conditioning .........
Heaters ..........................................
Air-conditioning ............................
**, For Engine Chassis & Body refer to
0 1986 Mitsubishi Motors Corporation Printed in Japan

8-2 ELECTRICAL SYSTEM PARTS LOCATION - Relay and Control Unit
ELECTRICAL SYSTEM IPARTS LOCATION NOIBAB-A
RELAY AND CONTROL UNIT
16W722
n 17
hub indicator control unit A A Automatic free-wheeling 2
Blower
assembiy& x v/i 16W152B Items Symbol
--
Air conditioner relay D
--
Auto choke relay G
--
Automatic free-wheeling hub indicator control
A
unit
Condenser blower motor relay H
Feed back carburetor control unit C
Hazard warning flasher unit F
Headlight washer relay F
Heater relay E
Intermittent wiper relay F
~___
Light control relay I
~___
Over drive relay F
Power window relay F
Seat belt warning timer B
Turn-signal flasher unit F
carburetor
control unit
Air conditioner relay
d--- I- Jr Evaporator E
1 .STB Re\iision

ELECTRICAL SYSTEM PARTS LOCATION - Fusible Link and Fuse
FUSIBLE LINK AND FUSE
--
Items
Dedicated fuse (for air conditioner circuit)
Dedicated fuse (for headlight circuit)
Main fusible link
Multipurpose fuse
Sub fusible link
NOTE Symbol
B
‘I
E
A
C
D
For detailed information concerning the fusible links and
fuses, refer to the section regarding CENTRALIZED JUNC-
TION (P.8-69, 70.)
16W722
-Evaoorator 1
/ STBI levision

8-28 WIRING HARNESS - Engine Compartment
1 ENGINE COMPARTMENT
Connector symbol
A
;:::I Main fusible link
;:::I 4WD indicator switch
A-05 Automatic transmission oil
temperature switch
A-06 Back-u light and 4WD indicator
A-07)wiring f!arness and cord
assembly combination
;:g> Back-up light switch
A-l 0 OD-OFF solenoid
A-l 1 Pulse generator
A-l 2 Front wiring harness and
transmission wiring harness
combination
A-13 Air conditioner solenoid valve
A-l 4 Front wiper motor A-
A156
A-55
A-l 7 Checker
A-18 Diode
A-19 Brake fluid level sensor
A-20 Front harness and back-up light
A-21 land 4WD indicator wiring
harness combination
it;;> Sub fusible link
A-24 Carburetor assembly
A-25 Control wiring harness and air
conditioner wiring harness
combination
A-26 Front wiring harness and control
wiring harness combination
A-27 Device box A-53 A-52
A-54
A-28 Auto choke relay
A-29 Front wiring harness and air
conditioner wiring harness
combination
A-30 Headlight washer motor
A-31 Front combination light (L.H.)
A-32 Light control relay
A-33 Dedicated fuse (Upper beam
indicator circuit)
A-34 Headlight (L.H.)
A-35 Condenser fan motor
A-40 Condenser fan motor relay
1 STB Revision

WIRING- HARNESS - Engine Compartment 8-29
; A-06 A-08 A-1 0 A-12 A-14
,.
1 A-15 8
I I
,I I I, I /
A-48
WI
&-ii& ’
A-35 Ai34 A!33 J-3:
A-39 A-37
36W618
A41
i-$ Ignition coil
A-44
A-45 Magnetic clutch
A-46 Water temperature sensor (FBC circuit)
;rii}Alternator
A-49 Water temperature switch (Air conditioner circuit)
A-50 Water temperature gauge unit
A-51 Water temperature switch (OD control circuit)
A-52 Oil pressure gauge or oil pressure switch
$3 Low pressure switch A-55 Headlight (R.H.)
A-56 Front harness and air conditioner wiring harness
combination
A-57 Front combination light (R.H.)
A-58 Front washer motor
A-59 Oxygen sensor
Remarks
(1) The mark * shows the reference mounting position of
wiring harness.
(2) For information concerning the ground points (exam-
ple:
q ), refer to P.8-7.
1 STB Revision

8-32 WIRING HARNESS - Instrument Panel
3 INSTRUMENT PANEL
Connector symbol
C
C-65 c-04
C-06
C-64
C-63
C-61
CL57 C-b6 C!55 d54 c!5
Remarks
For information concerning the ground points (example:
q ),
refer to P.8-7.
C-01 Back door lock switch
C-02 Defogger switch
C-03 Kev reminder and seat belt
warning buzzer
c-04
pi;’ Combination meter
C-08 Diode
C-09 Rear wiper and washer switch
r&~}Oil pressure gauge
C-12 f;hybination gauge illumination
C-l 3 Blower switch
C-14 Combination gauge wiring
harness and front wiring harness
combination
C-15 F;hybination gauge illumination
C,::F}Voltage meter C-l 8 Heater relay
C-l 9 Air conditioner wiring harness
and front wiring harness
combination
E:$)}Air conditioner relay C-31 Blower motor resistor
C-32 Dedicated fuse (Air conditioner
circuit)
C-33 Air conditioner switch
C-34 yl;Jer control lonob illumination
$:;;I Thermostat
$:;;I Feed back carburetor control unit
C-26 Front speaker (R.H.)
C-27 Front wiring harness and roof
wiring harness combination
C-28 Automatic free-wheeling hub
indicator control unit
C-29 Seat belt warning timer
C-30 Front wiring harness and door
wiring harness (R.H.)
combination c-35
C-36
c-37
C-38
c-39
c40
“3’ ‘. Blower switch
Clock
Heater control panel illumination
light
Ashtray illumination light
Air conditioner switch
illumination light
Front wiring harness and center
panel wiring harness
combination
[ STB Revision

8-40 WIRING HARNESS - Layout of Components WC)
LAYOUT OFCOMPONENJS [FBC)
CD
II A
5FU131
Items
Symbol Items Symbol
Auto choke relay J Slow-cut solenoid valve D
Engine speed sensor (Ignition coil 0)
Feed back carburetor control unit G
Throttle opener control solenoid valve (for the
A
K air-conditioner)
Feed back solenoid valve
I
C Throttle position sensor
I E
Oxygen sensor
I H Vacuum switch
I F
Secondary air control solenoid valve
I I 1 Water temperature sensor
I B
Throttle opener contr
solenoid valve

8-56 WIRING HARNESS - Air Conditioner Circuit
15 AIR CONDITIONER CIRCUIT
Main
fusible m
I;..,, 1 Ignition switch
Sub fusible link
(Fuse B)
+2 0.85-R
I I
(lonition switch)
I I ,!..I ’ ’
T
3-LRwQ
To turn signal flasher unit ~ 0.85-RL [Refer to P.849.1 J
L
I
I , ,0.85-LW
FA2 Ml
bFF To cigarette
lighter
[Refer to P.8-62.1
I f Y
Blower
motor
8 I
M
4JY motor
T-
Ii
1
Blower switch lower 1C-18 l!!!a Heater relay
0.85-WB@
Wiring color code
B: Black Br: Brown
G: Green
Gr: Gray L: Blue Lg: Light green
LI: Light blue
0: Orange P: Pink I?: Red
Y: Yellow W: White -
STB Revision
II/

WIRING HARNESS - Air Conditioner Circuit 8-57
0
(Bl
0: Lw
@,0.85-WB B 0.3
ElFI Lvf L
Air conditioner relay I @ H ‘I *2 Air :on!$!er rela
85-Bw:o.85-Bw ) to feed back carburetor
u control unit
A-25 [Refer to P.8-39.1
l 20.85-BWr
l 10.85-BWL&
A-13 * Vacuum solenoid
valve
A-45
0.85-BWnBW
Is*la
Magnetic
clutch
(compressor)
U
Water temperature
switch
Condenser
Condenser blower -I-
BY
blower motor motor relay rl
37W611
Remarks
(1) For information converning the ground points (exam-
ple:(l)n), refer to P.8-7.
(2) The svmbols 0, 0, etc. indicate that the wiring is
connedted (using the same numerical symbol) to-the
facing page. (In other words, 0 on the right page is
connected to 0 on the left page.) ) STB Revision

S-60 WIRING HARNESS - Radio / Cassette Deck Circuit
17 RADIO/CASSETTE DECK CIRCUIT
lm 1 Battery _ A-02
Sub fusible link
1.25-B A-23 0.5-G 2-w 5-*5-w m
rlin fusible
To light control
relay
[Refer to P.8-461
To combination BY
meter 4
[Refer to P.8-521
DIN Cable
Tape player
L1
EQ3 1
Ignition switch
To air conditioner
[Refer to P.8-561
c
JC
3:
A-
C-1
-
Radio
1 STB Revision
-7