heater MITSUBISHI MONTERO 1987 1.G User Guide

WIRING HARNESS - Centralized Junction
Multi-purpose Fuse
Power supply circuit Fuse No. Rated
capacity A Applicable circuits
Battery 1 20
Clock, Dome light, Hazard warning flashers
Headlight relay 2 10 Tail lights, License plate lights, Illumination lights, Headlight
washer relay, Position lights
__-
Ignition switch (IG) 3 10 Heater relay, Seat belt warning timer, Turn-signal lights,
Alternator, Seat belt switches, Power window relay, Fuel and
water temperature gauges, Oil pressure gauge, Voltage meter,
Indicator and warning lights, Inhibitor switch, Automatic
free-wheeling hub indicator control unit
4
IO Back-up lights, Auto choke relay, OD-OFF relay
__-
5 15 Rear window defogger
Battery 6 20 Heater, Back door lock
7 15 Key-reminder switch, Stop lights, Buzzer
Ignition switch (ACC) 8 15 Windshield wipers and washer, Headlight washer relay,
Intermittent wiper relay, Horn
9 10 Rear window wiper and washer
10 15 Cigarette lighter, Radio, Tape player, Clock (ACC), Spare terminal,
Air conditioner relay

8-78 CHARGING SYSTEM - Service Adiustment Procedures
80A
n
Relay with diode
Voltmeter
Ammeter Iad
176
OUTPUT CURRENT TEST
This test judges whether or not the alternator gives an output
current that is equivalent to the nominal output.
Preparation
(1) Prior to the test, check the following items and correct as
necessary.
(a) Check the battery installed in the vehicle to ensure that it
is in sound state*. The battery checking method is de-
scribed in “BATTERY”.
NOTE
*The battery that is used to test the output current should
be one that has been rather discharged. With a fully
charged battery, the test may not be conducted correctly
due to an insufficient load.
(b) Check tension of the alternator drive belt. The belt tension
check method is described in “GROUP 7 COOLING -
Service Adjustment Procedures”.
(2) Turn off the ignition switch.
(3) Disconnect the battery ground cable.
(4) Disconnect the alternator output wire from the alternator “B”
terminal.
(5) Connect a DC ammeter (0 to 100 A) in series between the “B”
terminal and the disconnected output wire. Connect the (+)
lead of the ammeter to the “B” terminal and connect the (-)
lead wire to the disconnected output wire.
NOTE
Tighten each connection by bolt and nut securely as a heavy
current will flow. Do not relay on clips.
(6) Connect a voltmeter (0 to 20 V) between the “B” terminal and
ground. Connect the (+) lead wire to the alternator “B” ter-
minal and (-) lead wire to a sound ground.
(7) Set the engine tachometer and connect the battery ground
cable.
(8) Leave the engine hood open.
Test
(1) Check to see that the voltmeter reads the same value as the
battery voltage.
If the voltmeter reads 0 V, an open circuit in the wire between
the alternator “B” terminal and battery (-) terminal, a blown
fusible link or poor grounding is suspected.
(2) Turn on the headlight switch and start the engine.
(3) Set the headlight at high beam and the heater blower switch
at HIGH, quickly increase the engine speed to 2500 rpm and
read the maximum output current value indicated by the am-
meter.
NOTE
After the engine start up, the charging current quickly drops.
therefore, above operation must be done quickly to read max-
imum current value correctly.
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--I

8-84 CHARGING SYSTEM - Alternator
REMOVAL AND INSTALLATION (Vehicles with Air Conditioner)
30-35 Nm
20-22 Nm
14-16 ft.lbs. D Draining of Refrigerant (Refer to
CONDITIONING - Service Adjust-
1 ‘ost-installation Operation
1 Charging of Refrigerant (Refer to
GROUP 24 HEATERS AND AIR
CONDITIONING - Service Adjust-
ment Procedures)
D Adjustment of Drive Belt Tension
(Refer to GROUP 7 COOLING and
GROUP 24 HEATERS AND AIR
CONDITIONING ~ Service Adjust-
ment Procedures)
:emoval steps
1. Connection of high pressure hose
2. Connection of low pressure hose
3. Connection of compressor connector
4. Compressor
5. Connection of alternator connector
~~ 6. Alternator
OTE
) Reverse the removal procedures to reinstall.
I) e+ : Refer to “Service Points of installation” 16W1566
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LIGHTING SYSTEM - Specifications 8-143
LIGHTING SYSTEM
SPECIFICATIONS
GENERAL SPECIFICATIONS
EXTERIOR AND INTERIOR LIGHTS NOEIB-
Items
Exterior lights
Head lights W
Front combination lights cp
Turn-signal lights
Front side marker and position lights
Rear combination lights cp
Turn-signal light
Stop and tail lights
Back-up lights
Rear side marker lights W
Licence plate lights W
Interior lights
Dome light W
Heater panel illumination light W
Combination meter and gauge illumination light
Cigarette lighter illumination light
W
Ashtray illumination light
W
Shift illumination light (automatic transmission) W
W
NOTE
The values in parentheses denote SAE grade numbers.
RELAY AND FLASHER UNIT
Items
Light control relay
Rated load W
Range of voltage used V
Voltage drop between terminals V
Turn-signal flasher unit
Type
Rated load W
Blinking frequency [I 2.8 V, 20°C (68”F)l
Hazard flasher unit
Type cycle/min
Rated load W
Blinking frequency [ 12.8 V, 20°C (68”F)l cycle/min Specifications
60/50
32
2
32
32/3
32
3.8(194)
6
10 1.4 (74)
3.4 (158)
1.4 (74)
1.4 (74)
1.4 (74)
Specifications
Max. 200
IO-16
0.2 or less
Condenser type
84.4
85210
Heat band type
49.4-168.8
902 10
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8-156 LIGHTING SYSTEM - Circuit Diagram
CIRCUIT DIAGRAM
INSTRUMENT PANEL ILLUMINATION CORCUIT
-1.25-B-
0
.5-w 0.5-G
2-R
Battery
-Err
5-w 15-w r
Main ’ A-02 A-23
Sub fusible link
fusible link a
I
z N
A A-22 [
cy]llo CY
c-i
Optical fiber
I
Multi-purpose
fuse Heater
control knob
illumination light Heater
control knob
ght control
lay Combination
gauge B 01 0’
Illumination light
/ n
c
C
-
c-57 0 ti
Q BY Lighting
switch
Dimmer control switch
rel
Combination meter
illumination light illumination lighter
Remarks
(1) The broken lines are applicable to models eouipped with
37W822 an automatic transmission.
(2) For information concerning the ground points (exam-
ple: 0 1, refer to P.8-7.
Wiring color code
6: Black
Br: Brown G: Green
Ll: Light blue Gr: Gray
0: Orange P: Pink
R: Red L: Blue
Y: Yellow Lg: Light green
W: White 1 ST6 Revision

ACCESSORY - Circuit Diagram 8-189
CIRCUIT DIAGRAM
LW
CIGARETTE LIGHTER / CLOCK CIRCUIT EB w
Sub fusible link
,-fs q M 15-W 5-W 25-W m ;I;
I I
-
Main fusible -
link Ignition switch
3e
I I
NN
,
Z-RW To
linht cnntrnl r&v I 4 0 n
I 1 - .J . __._ - -., [Refer to P.8-461
I 4 L-K A
To radio
GW [Refer to P.8-601 + 1 .25- GB
To hazard flasher unit4
[Refer to P.8-491
Multi-purpose fuse
illumination light
’ To heater control
illumination light
[Refer to P 8-511
r
i I
To combination meter BY
Wiring color code
B: Black LI: Light blue
Br: Brown 0: Orange
G: Green P: Pink
Gr: Gray R: Red
L: Blue Y: Yellow
Lg: Light green W: White
I
I - - m
I
N
Q
-
[Refer to P.8-521 -
To dimmer control switch BY
[Refer to P 8-511 .I
Remark 37W615
For information concerning the ground points (example: 0 ).
refer to P.8-7.
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BACK DOOR WINDOW DEFOGGER - Specifications / Special Tools
BACK DOOR WINDOW DEFOGGER
8-203
SPECIFICATIONS
( ;ENERAL SPECIFICATIONS NOOPB-B
Items
Back door window defogger switch
Type Seesaw type Specifications
Rated current
Back door window defogger timer
Timer
Back door window glass with defogger
No. of printed heater lines
Power consumption [2O”C (68”F)] 20A
-
11
112-148W
SPECIAL TOOLS
Tool (Number and name)
MB990784
Ornament remover Use
Removal of back door
window defogger
switch
NOBPG-B
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BACK DOOR WINDOW DEFOGGER - Printed Heater Lines B-207
Normal characteristic curve
Voltage
I;\
Positive
terminal Printed heater line Negative
terminal
Abnormal characteristic curve
Voltage
IZV
6V
ov :-
Tf I Open-circuit
I point
I
i
!
Positive Printed heater line Negative
terminal terminal
161332
Alignme.nt holes
Masking tape
16FfiSCl
PRINTED HEATER LINES
INSPECTION N08PKAA
1. The printed heater lines should be tested while the engine
is running at 2,000 rpm and the battery is being charged.
2. Turn the defogger switch to the “ON” position, and use
voltmeter to measure the voltage of each printed heater
line at the back door window glass center point “A”.
3. If all of the heater lines indicate approximately 6V, the back
door window printed heater lines are functioning properly.
4. If a voltage of 12V is indicated at point “A”, the heater line
is broken between point “A” and the negative (-) terminal.
Move the test probe gradually toward the negative (-)
terminal, and search for the place where there is a sudden
change in the voltage (to 0 V).
5. This place where the voltage suddenly changes indicates
the location of the broken heater line.
6. If OV is indicated at point “A”, the heater line is broken
between point “A” and the positive (+) terminal. Find the
point where there is a sudden change in the voltage (to
12V). as described in step 4. above.
REPAIR
I. Prepare the following items:
e Conductive paint
@ Paint thinner
e Masking tape, decal, etc.
a, Unleaded gasoline
@ Thin brush
Wipe the glass adjacent to the broken heater line, clean
with unleaded gasoline, and bond a decal or masking tape
as shown.
2. Shake the electroconductive paint container well, and
remove the amount of paint needed. Dilute it with a small
quantity of paint thinner, and apply three coats with the
brush at intervals of about 15 minutes.
3. Remove the tape or decal and leave the repaired defogger
unused for a while before supplying power.
4. For a better finish, scrape away excess deposits with a
knife after drying is complete (one day later).
Caution
After repair, clean the glass with a soft dry shop towel
or wipe along the printed heater line with a slightly
moistened shop towel.
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24-1
AIR-CO IONING
CONTENTS
AIR-CONDITIONING
AIR CONDITIONER SWITCH ......................... 42
CIRCUIT DIAGRAM ...................................... . . 26
COMPRESSOR ............................................... 46
EVAPORATOR ............................................ . ... 43
GENERAL INFORMATION .............. . ....... . . . .... 19
RECEIVER DRIER, CONDENSER,
COMPRESSOR CLUTCH ASSEMBLY .......... 45
SAFETY PRECAUTIONS ................................ 28
SERVICE ADJUSTMENT PROCEDURES ...... 29
Compressor Drive Belt Adjustment ...........
40
Compressor Noise ..................................... 41
Handling Tubing and Fittings ..................... 39
Manifold Gauge Set Installation ................ 29
Performance Test ...................................... 34
Refrigerant Leak Repair Procedure ........... 34
Test Procedures ......................................... 29
Testing System for Leaks .......................... 33
SPECIAL TOOLS ............................................ 22
SPECIFICATIONS ...... . .
.. . ................................ 21
General Specifications ...............................
21
Service Specifications ................................
21
Torque Specifications ................................
21
TROUBLESHOOTING .................................... 22 Air is Emitted but Is Not Cool
Cool Air Flow Is Intermittent
Insufficient Air Flow
Insufficient Cooling
HEATERS
BLOWER ASSEMBLY . . . . . . . . . . . . . . . . . . ..a............... 14
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
HEATER CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
HEATER UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SERVICE ADJUSTMENT PROCEDURES . . . . . . 5
Temperature Control System
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Water Valve Replacement . . . . . . . . . . . . . . . . . . . . . . . 8
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Blower Motor Inoperative
Blower Motor Operates on High
Speed Only
Improper Heat
No Ventilation Even When Mode
Selection Lever Is Operated
VENTILATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . ..a..... . . . . . . . . . . . .
16

24-2 HEATERS - General Information
GENERAL INFORMATION 24BAAD
The heater unit and the blower motor are the separate type.
For temperature control of the heater, the blend air system is used for excellent response and easy
temperature adjustment.
Because the damper in the blend air system controls the warm air, which passes through the heater core,
and fresh (cool) air, which does not pass througlh the core, minor adjustments of the temperature are
therefore possible, and the temperature’can be ,set to the optimum level.
The lap heater ducts (which provide warm air to th$ knee area for the front seats) and the-rear heater ducts
(which provide warm air to the foot area for the rebr seats) from the heater unit, plus the warm-water-type
rear heater, assure heating comfort throughout. :
Blower motor
/
2OW640
Rear heater duct ;;eselection
I Mode selection lever
I I
58W540 Temperature
Blower switch contra’ lever To defroster and
Blend air Air selection
demister damper damper
Fresh air
Mode selection
damper (VENT) To lap heater &@
duct To foot area
ro rear heater duct To rear heater duct 2OW706 Mode selection damper (FOOT/DEF)
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