ECU MITSUBISHI MONTERO 1998 Owners Manual
[x] Cancel search | Manufacturer: MITSUBISHI, Model Year: 1998, Model line: MONTERO, Model: MITSUBISHI MONTERO 1998Pages: 1501, PDF Size: 25.81 MB
Page 999 of 1501
2) Disconnect air intake hose and vacuum hoses. Remove air
hose and air outlet housing. Remove heat protectors. Disconnect
exhaust pipe. Remove power steering oil pump and bracket. Remove
engine hanger bracket. Disconnect oil inlet pipe.
3) Disconnect engine coolant hoses and tubes from
turbocharger. Remove exhaust manifold nuts and bolts. Remove exhaust
manifold and gaskets. Disconnect oil pressure and return pipes. Remove
turbocharger and exhaust manifold assembly. Separate turbocharger from
exhaust manifold.
Removal (3000GT - Front)
1) Disconnect negative battery cable. Drain engine oil and
coolant. Remove radiator. Disconnect exhaust pipe. Remove air intake
hose, air hoses and air pipe. Remove generator and belt. Remove oil
dipstick guide.
2) Remove heat protector. Disconnect front heated oxygen
sensor connector. Remove oil return pipe. Remove turbocharger support
bracket, and remove turbocharger from exhaust manifold.
Removal (3000GT - Rear)
1) Disconnect battery cables, and remove battery. Drain
engine oil and cooling system. Remove accelerator cable. Remove air
hose, air pipe and heat protectors. Disconnect clutch booster vacuum
hose. Remove air intake hoses and EGR pipe. Disconnect heated oxygen
sensor connectors.
2) Remove oil pipe and EGR valve. Disconnect exhaust fitting,
and remove rear heat protector. Remove oil return pipe. Remove
turbocharger assembly.
Inspection (All Models)
Check turbine and compressor wheels for cracking and other
damage. Ensure turbine and compressor wheels turn smoothly. Check for
oil leakage from turbocharger assembly. Check for proper wastegate
valve operation. See I - SYSTEM/COMPONENT TESTS article.
CAUTION: Apply light coat of oil to inner surface of flared area on
water pipe (flare nut fitting) before connecting to engine.
Installation (All Models)
1) To install, reverse removal procedure. Before oil pipe
flare nut (above turbocharger) is installed, pour clean engine oil
into turbocharger oil pipe installation hole. Ensure oil and air hoses
are properly installed and securely clamped.
2) Use NEW gaskets. Adjust accelerator cable (if necessary).\
Refill engine oil and coolant. Check for oil and coolant leaks.
Tighten all bolts to specification. See TORQUE SPECIFICATIONS.
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS TABLE\
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Applications Ft. Lbs. (N.m)
Coolant Pipe-To-Turbocharger Banjo Bolt .......... 31 (42)
EGR Valve ........................................ 16 (22)
Engine Coolant Temperature Sensor ................ 22 (30)
Exhaust Manifold-To-Engine Nuts ............ 18-21 (24-29)
Exhaust Manifold-To-Turbocharger Bolts ..... 40-47 (54-64)
Exhaust Pipe Bolts ......................... 21-36 (29-49)
Fuel Filter Line ................................. 27 (36)
Fuel Tank Drain Plug ....................... 11-18 (15-24)
Fuel Tank Nuts ............................. 15-21 (20-29)
Page 1067 of 1501
SEATS - POWER
1998 Mitsubishi Montero
1998 ACCESSORIES & EQUIPMENT
Mitsubishi - Power Seats
Eclipse, Galant, Montero, 3000GT
DESCRIPTION & OPERATION
Power seat system consists of reversible motors, a control
switch assembly and a wiring harness. Circuit is protected by a
fusible link, located in main relay box in engine compartment.
Power assist adjustments offered are: forward and backward
movement, height adjustment and separately adjusted front or rear seat
tilt. Controls are located on side of seat cushion or on center
console.
COMPONENT LOCATIONS
COMPONENT LOCATIONS TABLE \
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Component Location
Data Link Connector (DLC) ............ Under Left Of Dash,
Below Steering Column
ETACS-ECU
3000GT ......................... Left Of Steering Column
Seat Adjusting Motors .............. Under Each Front Seat
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COMPONENT TESTS
LIMIT SWITCH/SENSOR
Galant (Driver's Seat)
Disconnect each limit switch harness connector. Operate each
switch to check continuity between specified pins using ohmmeter. See
LIMIT SWITCH CONTINUITY TABLE (GALANT) . See Fig. 1. Replace power seat
adjuster assembly if any switch fails testing.
LIMIT SWITCH CONTINUITY TABLE (GALANT)
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Switch Check Continuity
Position Between Pins No.
Slide Limit Switch
Forward .......................................... 1 & 2
Backward ......................................... 1 & 3
Middle (ON) ................................... 1, 2 & 3
Front & Rear Height Limit Switch
Front Up ......................................... 1 & 3
Front Down ....................................... 1 & 2
Front Middle (ON) ............................. 1, 2 & 3
Rear Up .......................................... 1 & 3
Rear Down ........................................ 1 & 2
Rear Middle (ON) .............................. 1, 2 & 3
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Page 1215 of 1501
SUN ROOF - POWER
1998 Mitsubishi Montero
1998 ACCESSORIES & EQUIPMENT
Mitsubishi - Power Sun Roofs
Eclipse, Galant, Montero, Montero Sport, 3000GT
DESCRIPTION & OPERATION
Sun roof is actuated by an overhead console-mounted switch.
Sun roof motor, located near switch, moves sun roof panel by means of
drive cables. If necessary, sun roof can be closed manually using
manual closure wrench stored in vehicle's tool pouch.
On vehicles equipped with Electronic Timer Alarm Control
System (ETACS) ECU, sun roof can be operated up to 30 seconds after
ignition switch is turned to OFF position.
Sun roof motor incorporates a safety feature that initially
limits opening or closing of roof glass panel. Sun roof will not fully
close from fully open position without first releasing and then
depressing slide switch during operation. Sun roof initially stops
about 8" short of fully closed position.
COMPONENT LOCATIONS
COMPONENT LOCATIONS TABLE \
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Component Location
Data Link Connector (DLC) ....... Under Left Side Of Dash,
Below Steering Column
Sun Roof ECU
Galant ............................... Inside Headliner,
On Left Rear Of Sun Roof
Montero Sport ........................ Inside Headliner,
On Right Front Of Sun Roof
Eclipse, Montero & 3000GT ............ Inside Headliner,
On Front Center Of Sun Roof
Sun Roof Motor ................ Inside Headliner, Near ECU
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SERVICING
LUBRICATION
NOTE: Only Lubrication procedures during reassembly of sliding
roof assembly components are available from manufacturer at
time of publication.
ADJUSTMENTS
SUN ROOF FIT
1) Fully close sun roof. Fully open sun shade. Remove side
covers from underneath sun roof. Loosen 6 sun roof glass mounting nuts
and adjust glass forward, backward or sideways, if necessary.
2) If adjustment cannot be made by loosening mounting nuts,
check if sun roof glass or motor is in fully closed position. Readjust
as necessary.
Page 1218 of 1501
COMPONENT TESTS
DRIVE MOTOR
Eclipse & Montero Sport
Remove drive motor. See DRIVE MOTOR R & I under REMOVAL &
INSTALLATION. Using 12-volt power supply, apply voltage to 2-terminal
connector. Reverse power supply leads to reverse motor direction.
Replace motor as necessary.
Galant
Remove drive motor. See DRIVE MOTOR R & I under REMOVAL &
INSTALLATION. Using 12-volt power supply, apply voltage to terminals
No. 1 (Blue wire) and No. 4 (Blue/White wire) of 6-terminal drive
motor connector. Reverse power supply leads to reverse motor
direction. Replace motor as necessary.
Montero
Remove drive motor. See DRIVE MOTOR R & I under REMOVAL &
INSTALLATION. Using 12-volt power supply, apply voltage to terminals
No. 1 (Green wire) and No. 3 (Green/Red wire and Black wire) of 4-
terminal drive motor connector. Reverse power supply leads to reverse
motor direction. Replace motor as necessary.
3000GT
Remove drive motor. See DRIVE MOTOR R & I under REMOVAL &
INSTALLATION. Using 12-volt power supply, apply voltage to terminals
No. 1 (Red/Blue wire) and No. 2 (Red/Yellow wire) of 8-terminal driv\
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motor connector. Reverse power supply leads to reverse motor
direction. Replace motor as necessary.
DRIVE MOTOR LIMIT SWITCH
Eclipse & Montero Sport
1) Remove sun roof ECU. Look into viewing windows while
turning rotating wheel. See Fig. 2. Turn rotating wheel until White
marks appear. When White marks appear in viewing windows at same time,
stop turning rotating wheel.
2) Close sun roof fully. Install timed sun roof control unit.
Ensure wiring connector is properly inserted into control unit. Insert
a flat-blade screwdriver, place on tab and press to right, being
careful not to pinch wiring. See Fig. 3.
Fig. 2: Timing Sun Roof ECU (Eclipse & Montero Sport)
Courtesy of Mitsubishi Motor Sales of America
Page 1219 of 1501
Fig. 3: Installing Sun Roof ECU (Eclipse & Montero Sport)
Courtesy of Mitsubishi Motor Sales of America
Galant
Remove limit switches from drive motor. Using ohmmeter, check
continuity of each switch. Continuity should exist between terminals
No. 3 (Blue/Red wire) and No. 5 (Black wire) for switch No. 1, and
terminals No. 5 (Black wire) and No. 6 (Blue/Black wire) for switch
No. 2. Replace switches as necessary. See Fig. 4.
Fig. 4: Identifying Sun Roof Motor Connector (Galant)
Courtesy of Mitsubishi Motor Sales of America
Montero
Using ohmmeter, check continuity of limit switch. When
Page 1355 of 1501
and remove. Disconnect all external solenoid and switch connections.
3) On Montero 4WD, remove catalytic converter and front
exhaust pipe. On all models, disconnect speedometer cable and control
cables at transmission. Remove starter and bellhousing cover. Place
reference mark on torque converter and drive plate for reassembly
reference. Remove torque converter bolts. Push torque converter back
and away from drive plate.
4) Disconnect transmission cooler lines. Remove oil filler
tube. Secure transmission on a jack. Raise transmission slightly to
take weight off mount. Remove crossmember-to-mount bolts and
crossmember.
5) Remove transfer case mounting bracket and mount (if
equipped). Remove transmission-to-engine mounting bolts. Carefully
lower transmission from vehicle.
CAUTION: Ensure torque converter is fully seated in transmission
before installation.
Installation
1) To install, reverse removal procedure. Tighten
transmission-to-engine bolts and torque converter-to-drive plate bolts
to specification. See TORQUE SPECIFICATIONS. Tighten mount bolts with
weight of engine and transmission on mounts. Ensure reference marks on
drive shaft(s) and torque converter-to-drive plate are matched.
2) Apply sealant to transfer case gearshift assembly gasket
before installation. Coat transmission oil filler tube "O" ring with
transmission fluid before installation. Refill transmission fluid to
specified level. See LUBRICATION in TRANSMISSION SERVICING - A/T
article. Adjust all control cables. See ADJUSTMENTS in
TRANSMISSION SERVICING - A/T article.
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS - FWD MODELS \
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Applications Ft. Lbs. (N.m)\
Ball Joint Nut ............................................ 74 (100)\
Center Crossmember Assembly Front Bolt ..................... 69 (93)\
Center Crossmember Assembly Rear Bolt ...................... 52 (70)\
Starter Bolts .............................................. 22 (30)\
Tie Rod End Nut ............................................ 21 (28)\
Torque Converter-To-Drive Plate Bolt ................. 33-38 (45-52)\
Transaxle-To-Engine Block Bolt
8-mm Bolt .................................................... ( 1)
10-mm Bolt ......................................... 22-25 (30-34)\
12-mm Bolt ......................................... 31-40 (42-54)\
Upper Coupling Bolts
2.4L ..................................................... 35 (48)\
3.0L ..................................................... 54 (73)\
Lower Coupling Bolts
2.4L ..................................................... 35 (48)\
3.0L ..................................................... 65 (88)\
( 1) - Tighten to 84-108 INCH lbs. (10-12 N.m).
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TORQUE SPECIFICATIONS - RWD MODELS \
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Applications Ft. Lbs. (N.m)\
Engine-To-Transmission Bolt ................................ 65 (88)\
Page 1435 of 1501
3800 engines were suffering from exactly this. The point is that a
lack of detail could cause misdiagnosis.
As you might have guessed, a lab scope would not miss this.
RELATIONSHIP BETWEEN DWELL & DUTY CYCLE READINGS TABLE (1)
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Dwell Meter (2) Duty Cycle Meter
1
.................................................... 1%
15 .................................................. 25%
30 .................................................. 50%
45 .................................................. 75%
60 ................................................. 100%
( 1) - These are just some examples for your understanding.
It is okay to fill in the gaps.
( 2) - Dwell meter on the six-cylinder scale.
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THE TWO TYPES OF INJECTOR DRIVERS
OVERVIEW
There are two types of transistor driver circuits used to
operate electric fuel injectors: voltage controlled and current
controlled. The voltage controlled type is sometimes called a
"saturated switch" driver, while the current controlled type is
sometimes known as a "peak and hold" driver.
The basic difference between the two is the total resistance
of the injector circuit. Roughly speaking, if a particular leg in an
injector circuit has total resistance of 12 or more ohms, a voltage
control driver is used. If less than 12 ohms, a current control driver
is used.
It is a question of what is going to do the job of limiting
the current flow in the injector circuit; the inherent "high"
resistance in the injector circuit, or the transistor driver. Without
some form of control, the current flow through the injector would
cause the solenoid coil to overheat and result in a damaged injector.
VOLTAGE CONTROLLED CIRCUIT ("SATURATED SWITCH")
The voltage controlled driver inside the computer operates
much like a simple switch because it does not need to worry about
limiting current flow. Recall, this driver typically requires injector
circuits with a total leg resistance of 12 or more ohms.
The driver is either ON, closing/completing the circuit
(eliminating the voltage-drop), or OFF, opening the circuit (causing \
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total voltage drop).
Some manufacturers call it a "saturated switch" driver. This
is because when switched ON, the driver allows the magnetic field in
the injector to build to saturation. This is the same "saturation"
property that you are familiar with for an ignition coil.
There are two ways "high" resistance can be built into an
injector circuit to limit current flow. One method uses an external
solenoid resistor and a low resistance injector, while the other uses
a high resistance injector without the solenoid resistor. See the left
side of Fig. 1.
In terms of injection opening time, the external resistor
voltage controlled circuit is somewhat faster than the voltage
controlled high resistance injector circuit. The trend, however, seems
to be moving toward use of this latter type of circuit due to its
lower cost and reliability. The ECU can compensate for slower opening
Page 1477 of 1501
WIPER/WASHER SYSTEM
1998 Mitsubishi Montero
1998 ACCESSORIES & EQUIPMENT
Mitsubishi - Wiper/Washer Systems
Diamante, Eclipse, Galant, Mirage, Montero, Montero Sport,
3000GT
DESCRIPTION & OPERATION
All models are equipped with a 2-speed wiper motor with an
optional intermittent wiper feature. Some models are equipped with a
rear wiper/washer.
Galant is equipped with a wiper system that varies
intermittent setting speed with vehicle speed. System uses ignition
switch, wiper switch, intermittent switch, washer switch, vehicle
speed sensor, and Electronic Time Alarm Control System (ETACS) ECU.
COMPONENT LOCATIONS
COMPONENT LOCATIONS TABLE \
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Component Location
Assist-ECU (Diamante) ............. Above Right Kick Panel
ETACS-ECU ....................... Behind Left Side Of Dash
Wiper Relay
Front
Except Diamante &
3000GT ....................... Integral With Steering
Column Switch
Rear
Eclipse .............. Within Rear Wiper/Washer Switch
Montero &
Montero Sport ................ On Relay Block, Behind
Left Side Of Dash
3000GT ................ Behind Left Rear Quarter Panel
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ADJUSTMENTS
FRONT WIPER ARM ADJUSTMENT
Ensure wiper motor is in park position. Position wiper arm
and blade assembly so tip of blade is specified distance above front
window trim. See FRONT WIPER ADJUSTMENT SPECIFICATIONS table.
FRONT WIPER ADJUSTMENT SPECIFICATIONS TABLE
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Driver's Side Passenger's Side
Model In. (mm) In. (mm)
Diamante ....... 2.56-3.15 (65-80) .... .79-1.38 (20-35)
Eclipse .......... .19-.59 (5-15) .... 1.65-2.05 (42-52)
Galant ........... .39-.79 (10-20) ..... .39-.79 (10-20)
Mirage .......... .79-1.18 (20-30) .... .79-1.18 (20-30)
Montero ......... .98-1.38 (25-35) ... 1.38-1.77 (35-45)
Montero Sport ... .98-1.20 (25-31) ... 1.20-1.50 (31-38)
3000GT ........... .59-.79 (15-20) ..... .59-.79 (15-20)
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Page 1481 of 1501
NOTE: On Diamante, assist-ECU controls wiper circuit. On all
models except 3000GT, intermittent wiper relay is
incorporated into wiper switch. Information on testing is
not available from manufacturer at time of publication.
Continuity & Voltage Check (3000GT)
1) Disconnect column switch connector. Ensure continuity is
present between terminals No. 5 and 11, and between terminals No. 6
and 10. See Fig. 3. Ensure there is no continuity between terminals
No. 6 and 11.
2) Connect battery voltage to relay terminal No. 5 and ground
terminal No. 11. Battery voltage should be present on terminal No. 6.
Replace relay if continuity and voltage is not as specified.
Fig. 3: Identifying Front Wiper Relay Terminals (3000GT)
Courtesy of Mitsubishi Motor Sales of America
FRONT WIPER SWITCH TEST