1987 MITSUBISHI MONTERO ESP

2 INTRODUCTION - How To Use This Manual
HOW TO USE THIS MANUAL NOOBAAK
CONTENTS
The preceding page contains the GROUP INDEX
which lists the group title and group number.
PAGE NUMBERS
All page numbers consist of two sets of digits
separated by a dash. The digits preceding the dash
identify the number of the group. The digits follow-
ing the dash represent the consecutive page
number within the group. The page numbers can
be found on the top left or right of each page.
TEXT
Unless otherwise specified, each service procedure
covers all models. Procedures covering specific
models are identified by the model codes, or similar
designation (engine type, transmission type, etc.).
A description of these designations is covered in
this unit under “VEHICLE IDENTIFICATION”.
SERVICE PROCEDURES
The service steps are arranged in numerical order
and attentions to be paid in performing vehicle ser-
vice are described in detail in SERVICE POINTS.
DEFINITION OF TERMS
STANDARD VALUE
Indicates the value used as the standard for judging
the quality of a part or assembly on inspection or the
value to which the part or assembly is corrected and
adjusted. It is given by tolerance.
LIMIT
Shows the standard for judging the quality of a part
or assembly on inspection and means the maximum
or minimum value within which the part or assembly
must be kept functionally or in strength. It is a value
established outside the range of standard value. Installation steps
Indicates incidental operation
piiiKL=l-
Removal steps : The numbers before part names
correspond to numbers in the il-
lustration and indicate the order of
removal.
Disassembly steps : The numbers before part
names correspond to numbers
in the illustration, and indicate
the order of disassembly.
This is provided if installation
cannot be made in the reverse
order of “Removal steps”; omit-
ted if installation in the reverse
order of “Removal steps” is
possible.
.
Reassembly steps : I his IS provided It reassembly
cannot be made in the reverse
order of “Disassembly steps”;
omitted if reassembly in the
reverse order of “Disassembly
steps” is possible.
Classification of
SERVICE ROINTS
Oe : Removal
** : Installation
Oe : Disassembly
I)+ : Reassembly

INTRODUCTION - H
ow To Use This Manual 3
-L
!
Page number
Group title
Section title
THERMOSTAT
REMOVAL AND INSTALLATION
I
I I
L
1 torque
Removal +
I s 0480031
Thermostat kit
Repair kit or set parts are
1. Connectw of water temperature switch
connector (Vehicles with an air condltlon-
eri
2 Connection of radiator upper hose
3 Water outlet fitting
4 Water outlet fitting gasket
B~C 5. Thermostat I
This number corresponds to
the number in “Removal
steps”, ” Disassembly
steps”, “Installation steps”
or “Reassembly steps”.
NOTE
(1)
(3)
q Nowreusable parts
-r Reverse the removal procedures to reinstall
12) l * : Refer to “Sewce Points of Installation”
SERVICE POINTS OF lNSTALLATlON--
45. INSTALLATION OF THERMOSTAT
Install the thermostat to the Intake manifold as illustrated.
Caution
The thermostat flange fits over the manifold seat;
ensure that the thermostat is not installed at an angle.
An explanation of procedures, notes, etc.
(and reassembly. ’ ’ -1 regarding removal installation disassembly

INTRODUCTION - Towing and Hoisting
TOWING AND HOISTING NOOGA-
This vehicle can only be towed from the front with convention-
al sling-type equipment and tow chain with grab hooks.
If a vehicle is towed from the rear, use a tow dolly.
A lumber spacer (4” x 4” x 55” wood beam) should be placed
forward of under guard and under towing hook/shipping tie
down hook.
Then, attach J-hook to the lower arm.
A safety chain system must be used. This system must be
completely independent of the primary lifting and towing
attachment. Care must be taken in the installation of safety
chains to insure they do not cause damage to bumper, painted
surfaces or lights.
LIFT!NG-GROUND CLEARANCE
Towed vehicle should be raised until wheels are a minimum of
10 cm (4 in.) from the ground. Be sure there is adequate
ground clearance at the opposite end of the vehicle, especially
when towing over rough terrain or when crossing sharp rises
such as curbs. If necessary, ground clearance can be in-
creased by removing the wheels from the lifted end of the
disabled vehicle and carrying the lifted end closer to the
ground. A 20 cm (8 in.) ground clearance must be maintained
between brake drums and ground.
FRONT TOWING PICKUP
The vehicle may be towed on its rear wheels for extended
distances, provided the parking brake is released.
Make cartain the transmission remains in “NEUTRAL”.
SAFETY PRECAUTIONS
The following precautions should be taken when towing the
vehicle.
1. Remove exhaust tips and any other optional equipment,
that interface with the towing sling. Padding (heavy shop
towel or carpeting) should be placed between the towing
sling cross bar and any painted surfaces, and bumper
surfaces.
2. A safety chain system completely independent of the
primary lifting and towing attachment must be used.
3. Any loose or protruding parts of damaged vehicle such as
hoods, doors, fenders, trim, etc., should be secured prior
to moving the vehicle.
4. Operator should refrain from going under a vehicle unless
the vehicle is adequately supported by safety stands.
5. Never allow passengers to ride in a towed vehicle.
6. State and local rules and regulations must be followed
when towing a vehicle.
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8-14 WIRING HARNESS - Troubleshooting
1680222
Changeover knob 1680224
1680225 1
1680226
INSPECTION
1. Visual and aural checks
Check relay operation, blower motor rotation, light illumina-
tion, etc. visually or aurally. The flow of current is invisible but
can be checked by the operation of the parts.
I
2. Simple checks
For example, if a headlight does not come on and a faulty fuse
or poor grounding is suspected, replace the fuse with a new
one or ground the light to the body by a jumper wire to deter-
mine which part is responsible for the problem.
3. Checking with instruments
Use an appropriate instrument in an adequate range and read
the indication correctly. You must have sufficient knowledge
and experience to handle instruments correctly.
INSPECTION INSTRUMENTS
In inspection, make use of the following instruments.
1. Test lamps
A test lamp consists of a 12 V bulb and lead wires. It is used
to check voltages or shortcircuits.
2. Self-power test lamp
A self-power test lamp consists of a bulb, battery and lead
wires connected in series. It is used to check continuity or
grounding.
,.!‘?i,
,, 6
,‘.’
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Normal close INC) type
Deenergized state
Energized state
I
WIRING HARNESS - Troubleshooting 8-17
When a normal close type relay as illustrated here is checked,
there should be continuity between terminals (1) and (2) and
between terminals 3 and 4 when the relay is deenergized,
and the continuity should be lost between terminals 3 and 4
when the battery voltage is applied to the terminals 1 and 2. A
relay can be checked in this manner and it cannot be deter-
mine if a relay is okay or faulty by checking its state only when
it is deenergized (or energized).
Current -flows Current does not flow
1680234
=
1680235
State of fuse blown due to overcurrent
1660237
I
State of fuse blown due to thermal fatigue
CHECKING FUSES
A blade type fuse has test taps provided to allow checking of
the fuse itself without removing it from the fuse block. The
fuse is okay if the test light comes on when its one lead is
connected to the test taps (one at a time) and the other lead is
grounded.
(Change the ignition switch position adequately so that the
fuse circuit beomes live.)
CAUTIONS IN EVENT OF BLOWN FUSE
When a fuse is blown, there are two probable causes as follows
: One is that it is blown due to flow of current exceeding its rating.
The other is that it is blown due to repeated on/off current flowing
through it. Which of the two causes is responsible can be easily
determined by visual check as described below.
(1) Fuse blown due to current exceeding rating
The illustration shows the state of a fuse blown due to this
cause. In this case, do not replace the fuse with a new one
hastily since a current heavy enough to blow the fuse has
flowed through it. First, check the circuit for shorting and
check for abnormal electric parts. Only after the correction of
such shorting or parts, fuse of the same capacity should be
used as a replacement. Never use a fuse of lager capacity than
the one that has blown. If such a fuse is used, electric parts or
wirings could be damaged before the fuse blows in the event
an overcurrent occurs again.
(2) Fuse blown due to repeated current on/off
The illustration shows the state of a fuse blown due to re-
peated current on/off. Normally, this type of problem occurs
after fairly long period of use and hence is less frequent than
the above type. In this case, you may simply replace with a
new fuse of the same capacity.

8-22 WIRING HARNESS - How to Read Wiring Diagrams
HOW TO READ CIRCUIT DIAGRAMS
The circuit diagrams are functionally separated.
(1) Indication of circuit connected to another circuit
When the circuit in a circuit diagram connected to another circuit in a different diagram, the page number of that
different diagram is indicated so that it can be referred to.
(2) Indication of device connections
The circuit diagram shows whether a device harness connection is one with an attached cable or is a direct
connection type.
(3) Indication of connectors in circuit diagrams
A connector in a circuit diagram is shown in a frame and is assigned a connector symbol. This symbol
corresponds to the symbol in a wiring harness configuration diagram so that the connector location can be
known easily. An intermediate connector has its female side only shown as a rule. However both of the male
and female sides are shown when they differ in wiring color.
Refer to Item (2)
If a frame showing a connector touches the
?. it indicates that the de-
a direct connec- symbol of a device
vice
harness connectlon IS
tion type.
Refer to Items (2) and (3).
The frame shows the connector is not touch- ing the symbol of a device, and indicates that
the device harness connection is one with an
attached cable.
Indicates direct grounding from
the device to the bodv.
Ignition switch
Dome light
/
17 /B-6& B-68b
(RG) - (RB)
RB-
(REV 1 I (GR)
L-2
B-35
1 *I RL - RL
I
**2-RL 1 Z-RL I
BI B ----- ---- --------
L ----_ __---___----
r------B-39
43 BRL *I
31103LI RL*2 _
Refer to Item (1)
Refer to item (3)
Indicates that this connector is a B-39 con-
nectar. On a circuit connected to another circuit the
names of devices to which the circuit is con-
nected and pages on which diagrams of such
another circuit appear are indicated.
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WIRING HARNESS - HOW BO Read Wiring Diagrams 8-23
(4) Indication of fuses, fusible links and centralized relays
The fuses and fusible links in a circuit diagram are indicated by a wave symbol (-) and a double wave symbol
(~1, respectively. At a centralized junction, the fuses are given fuse numbers and centralized relays are given
connector symbols.
Example of centralized junction symbol: A - 01 x
Centralized junction indication symbol
Connector’s unique number (serial number)
Connector symbol
(5) Indication of ground point
The ground point in a circuit diagram is marked by a ground symbol, making it possible for you to refer to a
wiring harness configuration diagram and to ELECTRICAL SYSTEM PARTS LOCATION (Grounding).
(6) Indication of wires
In a circuit diagram, the wire diameter and wire color are shown for each wire. If there are several wires
of the same color in a connector, their wire color indication symbols should be such symbols as “I and
“2 for identification.
On connectors like this one given a central-
to CENTRALIZED JUNCTION for connector
1 shaoe. etc.
-I Headlight relay ignition switch
Dome light
I II I B-35 B-68b
P:8-47)
IEU
I ’ 2 I
RL
2-RL
0 III- BI B -----____________
L - - - - - _ _ _ _ _ __ _ _ _ _ _
B-39
Refer to Item (5).
Refer to Item (6)
The connector B-39 has two wires identical
in color (RL), so they are given identification
symbols *I and *2 in order to distinguish
them. 1 ST6 Revision

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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