1987 MITSUBISHI MONTERO Oil pressure

METERS AND GAUGES - Circuit Diagram 8-129
011 pressure
switch YB
H I
>
A-52
Oil pressure
gauge unit
(
A-52
UY
>
-0.85-B
r.., !
YB
A-20 A-06 A-03
YR mYR YR,RL RL 4WD El B indicator switch
-- L7 I I 1 8-23
I I I I I
I 1 !
Fuel 1 1 gauge
unit
L
WL/B
YL
g-- y
1
I
I I I I I I LY)T~ OD OFF switch
1 1 I
I ' ; [Refer to P.8-431 I I
I . . I
'4 8.
Combination gauge
Wiring color code
6: Black Br: Brown G: Green Gr: Gray
LI: Light blue 0: Orange P: Pink
R: Red
Y Water
temperature
gauge unit
Remarks
(I) The broken line indicates vehicles with com-
bination gauge.
(2) The dash and dot line (-.-) indicates vehicles
with automatic free-wheeling hub indicator.
(3) For information concerning the ground points
(example: 0 ). refer to P.8-7.
(4) The symbols @I,@, etc. indicate that the wiring
is connected (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.)
L: Blue
Y: Yellow Lg: Light green
W: White
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8-132 METERS AND GAUGES - Service Adjustment Procedures
(5) If both the test light and gauge operate, the circuit to the
gauge unit is normal and the gauge unit itself is faulty.
If the test light flashes but the gauge does not operate, the
gauge is faulty.
If 1 neither the test light nor the gauge operates, the water
temperature gauge circuit is faulty.
Se
VVATER TEMPERATURE GAUGE UNIT ONSPEC-
TION
NOBHIKD
To check the water temperature gauge unit, first remove it
from the intake manifold.
For detailed information concerning installation of the water
temperature gauge unit, refer to GROUP 11, INTAKE AND
EXHAUST SYSTEM - Intake Manifold.
WATER TEMPERATURE GAUGE UNIT RESISTANCE CHECK
Immerse the gauge unit in hot water at 70°C (158°F) and
measure the resistance value with an ohmmeter.
Standard value: 90.5 - 117.5 LR
OIL PRESSURE GAUGE SIMPLE TEST NOEHIFA
(1) Disconnect the wiring connector from the oil pressure
gauge unit inside the engine compartment.
(2) Ground the connector at the harness through a test light.
(3) Turn the ignition key to the ON position.
(4) Check to be sure that the test light illuminates steadily and
the indicator of the oil pressure gauge moves.
(5) If both the test light and gauge operate, the circuit to the
gauge unit is normal and the gauge unit itself is faulty.
If the test light flashes but the gauge does not operate, the
gauge is faulty.
If neither the test light nor the gauge operates, the oil
pressure gauge circuit is faulty.
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-7

METERS AND GAUGES - Service Adjustment Procedures 8-133
IOil p Oil pressure ressure
gauge unit
1 I Test light
‘@‘(12V - 3.4 I
W)
16W1576
OIL PRESSURE GA GE UNIT CURRENT CHEC,‘l<,
(1) Disconnect the wiring connector from the oil pressure
gauge unit inside the engine compartment.
(2) Apply battery voltage (through the test light) to the gauge
unit side terminal.
(3) Check to be sure that the test light switches OFF when the
engine is stopped, and that it flashes while the engine is
running.
VOLTAGE METER SIMPLE TEST NOEHIGC
(1) Connect a voltmeter for testing.
(2) Turn the ignition key to the ON position.
(3) Compare the readings of the voltmeter for testing and of
the vehicle’s voltage meter. Standard value : 1OV
16V + 0.5v
+ 0.5v
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METERS AND GAUGES - 3-meter Unit
3-METER lJN(IT
REMOVAL AND INSTALLATION
Removal steps
1. Meter 2.
Gauge
pad
assembly
NOTE
Reverse the removal procedures to reinstall
16W1560
lBW077
INSPECTION OIL
PRESSURE GAUGE
Measure the resistance value between the terminals with an
ohmmeter. Standard value : Approx. 50 CR
VOLTAGE METER
Measure the resistance value between the terminals with an
ohmmeter. Standard value : 380-4601(1
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8-138 METERS AND GAUGES - s-meter Unit
16W678
DISASSEMBLY AND REASSEMBLY
INCLINOMETER
(1) Check to be sure that operation is smooth when the
inclinometer is tilted up/down and to the left and right.
(2) The i,nclinometer can be considered to be in good condi-
tion If the pointer indicates the spherical dial horizontal
centre line when the meter case is placed on a level
surface.
6
Disassembly steps
1. Oil pressure gauge
2. Inclinometer
3. Voltage meter
4. Meter glass
5. Window plate
6. Meter case
7. Meter harness
NOTE
Reverse the disassembly procedures to reassemble.
16W1561
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METERS AND GAUGES - Indicators and Warning Lights 8-141
INDICATORS AND WARNING
LIGHTS
Symbol
Operation
Turn signal indicator
+e3 This indicator flashes, as do the same side of turn-signal light
flashes. If the turn-signal light is burnt out, the blinking of
indicator slows down.
This indicator is common with hazard light.
0
High beam indicator
- This indicator illuminates when the headlights are on high
= beam.
=
* Door-ajar warning light
This warning light comes on when the door is either open or
not completely closed.
4 Fasten seat belt indicator
This indicator goes on for four to eight seconds when the
ignition key is in “ON” position, even if the driver has fastened
his seat belt.
BRAKE
Brake warning light
This warning light comes on when the ignition key is in “ON”
position, and goes off after the engine has started. This
warning light comes on when the parking brake is applied
or brake fluid level falls less than the specific level.
III Charging warning light This warning light comes on when the ignition key is in
- + “ON” position, and goes off after the engine has started.
This warning light comes on when the drive belt breaks
or the trouble occurs in the charging system.
Oil pressure warning light This warning light comes on when the ignition key is in “ON”
P position, and goes off after the engine has started. This
warning light comes on when the oil fails or the trouble
occurs in the oil circulating system.
00
Overdrive indicator
This indicator will illuminates when the overdrive control
OFF
switch is switched to the “OFF” position.
68R0133
A/T
A/T oil temperature warning light This A/T oil temperature warning light comes on when
TEMP automatic transmission fluid temperature becomes abnor-
mally high.
68WO68
Free-wheeling hub indicator
YEL This indicator comes on when the automatic free-wheeling
hubs are locked.
68WO80
z4 4WD indicator This indicator will light up when the transfer case shift lever is
shifted to the four wheel driving position (either the “4H” or the
“4L” position) and the ignition key is in the “ON” position.
CHECK
EGR
EGR warning light The EGR warning light will illuminate every 50,000 miles of
driving. When this occurs, bring the vehicle to an authorized
dealter to have the EGR system checked.
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AUDIO SYSTEM - Specifications 8-193
NOISE SOURCES
Source of Electrical System Noise
Ignition system
(1) Spark plug
(2) High tension cable
(3) Distributor Power generation system
(1) Ripple at contact between alternator
armature and carbon brush
(2) Spark from voltage regulator contact
!
Other electrical device
(1) Armature of wiper, blower and other
motors.
(2) Starter and switch when starting engine
(3) Spark from changeover switch
(4) Horn
(5) Contact of turn signal
(6) Loose contact of wiring harness
(7) Static electricity generated by tire or
generator drive-belt
(8) Voltage stability unit for instrument
Noise Sourse of Vehicle Equipment
Kind of noise
Whistling sound Equipment
Alternator Symptom of noise generation
Noise increases when accelerator pedal is
depressed and it subsides soon after engine
is stopped.
Scratching sound
Water temperature gauge unit Noise is produced while engine is running
and it persists for a while after engine
shutdown.
Fuel gauge unit Noise is produced at sudden acceleration,
driving on rough road or when ignition key is
placed to ON.
Jarring
Wish-wash,
wish-wash
Buzz, click Oil pressure switch
Flasher relay
Horn
Wiper motor
Washer motor Noise is produced with engine operation
and no noise is made when engine is idling.
Noise is produced with operation of turn
signal light
Noise is made when horn button is pressed
or released.
Whinning Noise is generated with the wiper speed.
Noise is made when washer is operated.
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24-20 AIR-CONDITION!NG-General Information
I
AIR-CONDITIONING SYSTEM COMPO
N24BBBB
Condenser MDuct, joint (Blower side)
oint (Heater unit
Condenser
2OWB31
Suction Pipe Receiver bracket side)
COMPRESSOR - The prime purpose of the compressor is to compress the low pressure refrigerant vapor
from the evaporator into a high pressure, high temperature vapor. The 6 cylinder 6P148 compressor is used.
MAGNETIC CLUTCH is mounted on the compressor providing a convenient way to drive and disengage
compressor in accordance to the cooling needs. CONDENSER is located in front of the radiator. Its function
is to cool the hot, high pressure refrigerant gas causing it to condense into high pressure liquid refrigerant.
RECEIVER DRIER is used to remove any traces of moisture from the refrigerant system. This component
incorporates the sight glass and fusible plug. SIGHT GLASS at the top of the receiver drier is provided as a
diagnostic tool to observe refrigerant flow and observe refrigerant level. THE FUSIBLE PLUG is located on
the receiver drier. Its function is to prevent damage to the air conditioning system in the event that
excessive pressure develops due to condenser air flow being restricted by, for example, leaves, newspaper,
an overcharge of refrigerant, or air in the system. LOW PRESSURE SWITCH prevents damage to the
compressor in case of system loss of refrigerant charge. EXPANSION VALVE - The expansion valve is used
for all applications. Its function is to meter refrigerant into the evaporator in accordance with cooling
requirements. EVAPORATOR COIL is located in the unit and its function is to cool and dehumidify the air
before it enters the vehicle. FREEZE UP CONTROL FIN THERMOSTAT SENSOR is installed at the heater
side of evaporator. The main function of a freeze control is to keep condensate water on the face of the
evaporator coil from freezing and restricting air flow. WATER TEMPERATURE SWITCH - When the
temperature of the radiator coolant became high, this switch functions to stop the compressor and prevent
engine overheating. SERVICE VALVE at the compressor and the discharge line. The valves are used to test
and service the refrigerant system. REFRIGERANT R-12 is used maximum amount 907 g (32 oz.) R-12.
COMPRESSOR OIL is used DENS0 oil 6 maximum amount 110 cc (3.7 U.S.fl.oz., 3.9 Imp.fl.oz.).
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