THROTTLE POSITION (TP) SWITCH or THROTTLE POSITION (TP) SENSOR in G \
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TESTS W/CODES article.
Engine Coolant Temperature Sensor
See G - TESTS W/CODES article.
Heated Oxygen Sensor
See G - TESTS W/CODES article.
Intake Air Temperature (IAT) Sensor
On all models except Eclipse 2.0L non-turbo and Mirage 1.5L,
IAT sensor is a part of volume airflow sensor assembly. On all models,
see G - TESTS W/CODES article.
Manifold Absolute Pressure Sensor
See G - TESTS W/CODES article.
Manifold Differential Pressure Sensor
See G - TESTS W/CODES article.
Power Steering Oil Pressure (PSP) Switch
On Eclipse 2.0L non-turbo, see DTC 115 in G - TESTS W/CODES -
NON-TURBO article. On all other models except Eclipse 2.0L non-turbo,
see G - TESTS W/CODES article.
Throttle Position Sensor
See G - TESTS W/CODES article.
Vehicle Speed Sensor
See G - TESTS W/CODES article.
Volume Airflow Sensor
See G - TESTS W/CODES article.
MOTORS, RELAYS & SOLENOIDS
MOTORS
Idle Air Control Motor
See G - TESTS W/CODES article.
RELAYS
ASD, Fuel Pump & MFI Relay
See G - TESTS W/CODES article.
Radiator Cooling Fan Control Relay (High & Low)
See G - TESTS W/CODES article.
SOLENOIDS
EGR Control Solenoid Valve
See EXHAUST GAS RECIRCULATION (EGR) under EMISSION SYSTEMS &
SUB-SYSTEMS.
EVAP Purge Control Solenoid Valve
See FUEL EVAPORATION under EMISSION SYSTEMS & SUB-SYSTEMS.
Fuel Pressure Regulator Control Solenoid Valve (Turbo Models)
See FUEL DELIVERY under FUEL SYSTEM.
Wastegate Control Solenoid Valve
INSTRUMENT PANEL
1998 Mitsubishi Montero
1998 ACCESSORIES & EQUIPMENT
Mitsubishi - Instrument Panels
Eclipse, Galant, Mirage, Montero, Montero Sport, 3000GT
DESCRIPTION & OPERATION
WARNING: Deactivate air bag system before performing any service
operation. See AIR BAG RESTRAINT SYSTEMS article. Do not
apply electrical power to any component on steering column
without first deactivating air bag system. Air bag may
deploy.
Instrument cluster includes speedometer, fuel gauge and
temperature gauge. Fuel gauge has a built-in voltage limiter to keep
voltage supply to gauges at 7 volts. Some models may also have an
ammeter, oil pressure gauge, tachometer, voltmeter and/or turbo boost
pressure gauge. Oil pressure gauge uses full battery voltage.
Tachometer operates by pulse feed.
COMPONENT LOCATIONS
COMPONENT LOCATIONS TABLE \
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Component Location
Engine Coolant Temperature (ECT) Sensor
Eclipse, Galant, Montero
& Montero Sport ................. On Thermostat Housing
Mirage ........................ On Rear Of Cylinder Head
3000GT ........... On Cylinder Head, Below Ignition Coil
Input Speed Sensor
Eclipse ........................... On Side Of Transaxle
Output Speed Sensor
Eclipse ........................... On Side Of Transaxle
Vehicle Speed Sensor
Eclipse, Galant,
Mirage & 3000GT ................... On Top Of Transaxle
Montero & Montero Sport ...... On Transmission Tailshaft
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TROUBLE SHOOTING
FUEL/TEMPERATURE GAUGE NOT WORKING
Check for blown fuse, faulty voltage limiter and faulty
relay. Ensure sending unit connections are clean and tight. Test
sending unit for correct operation. Tighten connections in instrument
cluster.
SPEEDOMETER NOT WORKING
On mechanical-type speedometers, ensure speedometer cable is
properly connected and correctly routed. If speedometer pointer and/or
odometer still do not work, replace speedometer cable or speedometer
assembly.
On electric-type speedometers, check for faulty vehicle speed
sensor, input/output sensors or faulty circuit. For testing, see
Eclipse 2.0L Non-Turbo With A/T
Disconnect sensor harness connector. Check resistance between
sensor terminals. Resistance should be 300-1200 ohms. Replace sensor
as necessary.
OIL PRESSURE GAUGE
Circuit Test (Eclipse, Montero & 3000GT)
1) Disconnect oil pressure gauge wiring connector from
sending unit inside engine compartment. Connect a 12-volt test light
between harness connector terminal and ground. Turn ignition on, but
DO NOT start engine.
2) If test light comes on and gauge needle moves, go to GAUGE
RESISTANCE TEST. If test light does not come on and gauge needle does
not move, repair wiring to sending unit.
Gauge Resistance Test (Eclipse, Montero & 3000GT)
1) Remove instrument cluster from instrument panel. See
INSTRUMENT CLUSTER under REMOVAL & INSTALLATION. On 3000GT, remove air
distribution duct and combination gauges.
2) On all models, check continuity between oil pressure gauge
terminals. See Fig. 17, 18 or 19. See
OIL PRESSURE GAUGE RESISTANCE SPECIFICATIONS table. If resistance is
not within specification, replace oil pressure gauge.
OIL PRESSURE GAUGE RESISTANCE SPECIFICATIONS TABLE
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Application Ohms
Eclipse & 3000GT ................................... 40-44
Montero ............................................... 50
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Fig. 17: Oil Pressure Gauge Resistance Test Terminals (Eclipse)
Courtesy of Mitsubishi Motor Sales of America
unit. Turn ignition on. Check voltage between ground and sending unit
harness-side connector. If battery voltage is present, problem is
intermittent. If battery voltage is not present, go to next step.
2) Check sending unit harness connector. Repair as necessary.
If connector is okay, check circuit (Yellow wire) between oil pressure\
gauge and oil pressure sending unit. See WIRING DIAGRAMS. Repair as
necessary. If circuit is okay, go to next step.
3) Remove multi-meter assembly. Check voltage between ground
and harness-side connector terminal No. 10 (Red/Black wire). See
WIRING DIAGRAMS . If battery voltage is present, problem is
intermittent. If battery voltage is not present, go to next step.
4) Check harness connector to multi-meter assembly. Repair as
necessary. If connector is okay, check circuit between multi-meter
harness connector and fusible link No. 6. See WIRING DIAGRAMS. Repair
as necessary. If circuit is okay, go to next step.
5) Turn ignition on. Check voltage between ground and multi-
meter harness-side connector terminal No. 11 (Black/White wire). See
WIRING DIAGRAMS . If battery voltage is present, problem is
intermittent. If battery voltage is not present, go to next step.
6) Check harness connector to multi-meter assembly. Repair as
necessary. If connector is okay, check circuit between multi-meter
assembly harness connector and ignition switch. See WIRING DIAGRAMS.
Repair as necessary. If circuit is okay, go to next step.
7) Turn ignition off. Check continuity between ground and
multi-meter assembly harness-side connector terminal No. 3 (Black
wire). If continuity is present, problem is intermittent. If
continuity is not present, go to next step.
8) Check harness connector to multi-meter assembly. Repair as
necessary. If connector is okay, check circuit (Black wire) between
multi-meter assembly harness connector and ground. See WIRING DIAGRAMS
. Repair as necessary. If circuit is okay, problem is intermittent.
Gauge Sending Unit Resistance Test (Montero Sport)
Disconnect harness connector to oil pressure sending unit.
Start and idle engine. Check resistance between oil pressure gauge
sending unit terminal and engine block. Resistance should be about 2
ohms. Replace sending unit if resistance is not as specified.
REED SWITCH
Continuity Check (Montero)
1) Remove instrument cluster. See INSTRUMENT CLUSTER under
REMOVAL & INSTALLATION. Check continuity between reed switch terminals
No. 1 and 2. See Fig. 20.
2) Ensure continuity pulses on and off 4 times per revolution
of speedometer shaft connection. If continuity is not as specified,
replace reed switch.
Fig. 20: Identifying Reed Switch Test Terminals (Montero)
Courtesy of Mitsubishi Motor Sales of America
SPEEDOMETER TEST
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Engine Oil Ambient Temperature Less Than SAE 5W-30
(
1) 0\bF (-18\bC) To 100\bF (38\bC)
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Ambient Temperature Above 0\bF SAE 10W-30
(-18\bC) To Over 100\bF (38\bC)
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Power All Automatic Transmission
Steering Fluid DEXRON II
Fluid
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Engine All 50/50 Mixture Of
Coolant Distilled Water &
Ethylene Glycol
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Transfer Case All API Classification GL-4
SAE 75W-85W Or 75W-90
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Front Axle All API Classification GL-5
Or Higher (
2)
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Clutch Fluid All DOT 3 Or DOT 4
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Hook Lock All Multipurpose Grease
Catch, Door NLGI Grade 2
Lock Strikers
Seat Adjust-
ers, Backdoor
Lock, Parking
Brake Cable
Mechanism
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Front Wheel All Multipurpose Grease
Bearings NLGI Grade 2 Or
Equivalent
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Door Hinges, All Engine Oil
Back Door
Hinges
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A/C All HFC-134a
Refrigerant
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Manual All API Classification GL-4
Transmission SAE 75W-85W Or 75W-90
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Automatic All "ATF DEXRON II" Or
Transmission Equivalent
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Brake Fluid All DOT 3 Or DOT 4
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Rear Axle All API Classification GL-5
Or Higher (
2)
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(
1) - SAE 5W-30 engine oil is preferred. SAE 10W-30 may be used if
the Ambient Temperature is above 0\b F (-18\b C).
(
2) - SAE90, 85W-90, 80W-90 may be used in temperatures above
-10\b F (-23\b C). SAE 80W, 80W-90 may be used in temperatures
from -30\b F (-34\b C) to -10\b F (-23\b C). SAE 75W may be used
in temperatures below -30\b F (-34\b C).
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