ECU MITSUBISHI MONTERO 1998 Manual Online

BATTERY TRAY AND HOLD DOWN HARDWARE INSPECTION








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Condition Code Procedure
Battery improperly
secured ................ 2 ................. Suggest repair.
Bent, affecting
performance ............ A .. Require repair or replacement.
Bent, not affecting
performance ............ .. ....... No service suggested or
required.
Broken, affecting
performance ............ A .. Require repair or replacement.
Broken, not affecting
performance ............ .. ....... No service suggested or
required.
Corroded, affecting
performance ............ A .. Require repair or replacement.
Corroded, not affecting
performance ............ 2 .. Suggest repair or replacement.
Cracked, affecting
performance ............ A .. Require repair or replacement.
Cracked, not affecting
performance ............ 1 .. Suggest repair or replacement.
Missing ................. C ............ Require replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
Water drain clogged ..... A ................. Require repair.









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BATTERY WIRES
See BATTERY CABLES, WIRES AND CONNECTORS .
BELT-DRIVEN AIR PUMPS
BELT-DRIVEN AIR PUMP INSPECTION








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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Inoperative ............. A ........ ( 1) Require replacement.
Leaking ................. A ............ Require replacement.
Missing ................. C ............ Require replacement.
Noisy ................... 2 ............ Suggest replacement.
Pulley alignment
incorrect .............. B .. Require repair or replacement.
Pulley bent ............. A ............ Require replacement.
Pulley cracked .......... A ............ Require replacement.
Pulley loose ............ A .. Require repair or replacement.
Pulley missing .......... C ............ Require replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads

WIRING HARNESS AND CONNECTOR INSPECTION








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Condition Code Procedure
Application incorrect ... B .. Require repair or replacement.
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Connector broken ........ A .. Require repair or replacement.
Connector (Weatherpack
type) leaking .......... A .. Require repair or replacement.
Connector melted ........ A ........... (1) Require repair or
replacement.
Connector missing ....... C ............ Require replacement.
Insulation damaged,
conductors exposed ..... A .. Require repair or replacement.
Insulation damaged,
conductors not exposed . 1 ............ Suggest replacement.
Open .................... A .. Require repair or replacement.
Protective shield
(conduit) melted ....... 2 ........... ( 1) Suggest repair or
replacement.
Protective shield
(conduit) missing ...... 2 .. Suggest repair or replacement.
Resistance (voltage drop)
out of specification ... A .. Require repair or replacement.
Routed incorrectly ...... B ................. Require repair.
Secured incorrectly ..... B ................. Require repair.
Shorted ................. A .. Require repair or replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
Voltage drop out of
specification .......... A .. Require repair or replacement.
( 1) - Determine cause and correct prior to repair or
replacement of part.









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GENERATOR OUTPUT TEST
NOTE: A slightly discharged battery should be used, as a fully
charged battery may not allow full generator output.
1) Turn ignition off. Disconnect negative battery cable.
Disconnect generator output wire from terminal "B". Connect positive
lead of 100-amp ammeter to terminal "B" and negative lead to
disconnected output lead.
CAUTION: Tighten each connection securely, as heavy current flow will
exist. DO NOT use clips on ammeter. An inductive-type
ammeter is recommended.
2) Connect positive voltmeter lead (0-20 volts) to generator\
terminal "B" and negative lead to ground. Install a tachometer and
reconnect negative battery cable.
3) Ensure voltmeter indicates battery voltage. If voltage is
not present, check for open circuit in wire between generator terminal
"B" and positive battery terminal. Check grounds and fusible link.
4) Start engine and turn headlights on. Set headlights at
high beam and heater blower switch on HIGH. Increase engine speed to
2500 RPM and note generator output current on ammeter. Minimum output
should be within specification. See
GENERATOR MINIMUM OUTPUT SPECIFICATIONS table.
NOTE: Output voltage changes with electrical load and temperature.
Ensure proper electrical load is applied while checking
output. Nominal output may not be obtained if generator or
ambient temperature is excessive. Allow generator or
temperature to cool, and recheck output. Generator output is
stamped on metal plate attached to generator case.
5) If minimum output is not obtained and generator wiring is
okay, repair generator. Operate engine at idle speed after the test.
GENERATOR MINIMUM OUTPUT SPECIFICATIONS TABLE









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Application Amps
Diamante ............................................. 110
Eclipse
2.0L Non-Turbo ...................................... 90
2.0L Turbo .......................................... 75
2.4L ................................................ 90
Galant ................................................ 90
Mirage ................................................ 80
Montero .............................................. 100
Montero Sport
2.4L ................................................ 60
3.0L ................................................ 85
3000GT
DOHC ............................................... 110
SOHC ................................................ 90









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REGULATED VOLTAGE TEST
NOTE: Ensure battery is fully charged and proper drive belt
tension exists.
1) Turn ignition switch off. Disconnect negative battery
cable. Connect positive voltmeter lead to terminal "S" of generator.

This lever is used to select source of airflow. With lever at
fresh air setting, outside air is allowed to enter and/or pass through
heater. With lever at recirculated air setting, air is recirculated
inside passenger compartment.
FRONT BLOWER SWITCH
Front blower switch controls fan speeds to regulate amount of
airflow. Fan speed increases as switch is turned/moved to far right.
COOL AIR BY-PASS KNOB
With heater in floor, defrost/floor or defrost mode, turning
knob to far left allows cool air to enter passenger compartment
through center vent.
FRONT MODE SELECTOR KNOB/LEVER
Depending on position selected, airflow can be directed to
different areas of passenger compartment. Airflow selection
capabilities include individual areas or a combination of windshield,
upper body, knee and/or foot area.
TEMPERATURE CONTROL
Temperature control is adjusted by moving control lever or
turning control knob to left or right. Temperature control cable opens
and closes heater control valve, which determines heat output. Highest
heat setting is attained when lever/knob at far right position. With
temperature lever/knob at cool setting, ambient air is used for
ventilating.
ADJUSTMENTS
FRONT FRESH/RECIRCULATED AIR SELECTOR CABLE
Place air selector lever at recirculated air setting. Press
damper lever inward, in direction of arrow. See Fig. 2. Connect inner
wire of fresh/recirculated air selector cable to damper lever. Secure
outer wire of selector cable with clip.
Fig. 2: Adjusting Front Fresh/Recirculated Air Selector Cable
Courtesy of Mitsubishi Motor Sales of America.
FRONT MODE SELECTOR CABLE

Place front mode selector knob at defrost setting. Press
damper lever inward, in direction of arrow. See Fig. 3. Connect inner
cable of mode selector cable to damper lever. Secure outer wire of
selector cable with clip.
Fig. 3: Adjusting Front Mode Selector Cable
Courtesy of Mitsubishi Motor Sales of America.
FRONT TEMPERATURE CONTROL CABLE
Move front temperature control knob to extreme right (HOT)
position. Press blend-air damper lever completely downward, in
direction of arrow. See Fig. 4. Connect inner wire of temperature
control cable to damper lever. Secure outer wire of control cable with
clip.

Fig. 4: Adjusting Front Temperature Control Cable
Courtesy of Mitsubishi Motor Sales of America.
FRONT VENTILATION CONTROL CABLE
Turn cool air by-pass lever/knob to far right/clockwise
(closed position). See Fig. 5. Lever should slightly touch stopper.
Connect ventilation control cable, and secure with clip.
Fig. 5: Adjusting Front Ventilation Control Cable
Courtesy of Mitsubishi Motor Sales of America.
TROUBLE SHOOTING

* PLEASE READ THIS FIRST *
WARNING: To avoid injury from accidental air bag deployment, read and
carefully follow all SERVICE PRECAUTIONS and DISABLING &
ACTIVATING AIR BAG SYSTEM procedures in AIR BAG RESTRAINT
SYSTEM article.
CAUTION: When removing or installing floor console, DO NOT allow any
impact or shock to Supplemental Restraint System Electronic
Control Unit (SRS-ECU).
FRONT HEATER UNIT & HEATER CORE
Removal
1) Deactivate air bag system. See AIR BAG RESTRAINT SYSTEM
article. Remove front and rear floor consoles. Remove hood release
handle. Remove fuel door release handle. Remove knee protector and
support brackets. Remove speaker covers.
NOTE: On A/T models, when removing front floor console, set A/T
selector lever in "L" position.
2) Remove glove box door stop, glove box and glove box frame.
Remove passenger-side air bag module. Remove heater control panel
cover. Remove heater control panel and radio. Remove plug from
instrument cluster cover. Remove instrument cluster cover and
instrument cluster.
3) Remove steering column cover. Remove clock or plug. Remove
side defroster covers. Remove side mirror control switch. Remove front
speakers.
4) Remove rheostat, rear wiper/washer switch, and door lock
switch. Disconnect ventilation control cable and harness connector.
See Fig. 9. Remove instrument panel. See INSTRUMENT PANEL. Drain
coolant and disconnect heater hoses from heater unit.
5) Remove shower ducts, lap duct, joint duct and center duct.
See Fig. 1 . Remove center reinforcement. Remove heater unit. Remove
distribution duct. Remove heater core.
Installation
Install heater core, distribution duct, heater unit and
center reinforcement. Install remaining ducts in reverse order of
removal. Install instrument panel. Tighten steering column bolts to 16
ft. lbs. (22 N.m). Install and adjust ventilation control cable. See
ADJUSTMENTS . To complete installation, reverse removal procedure. Add
coolant and check for leaks.
INSTRUMENT PANEL
Removal & Installation
Remove instrument panel components and then instrument panel,
in order listed on appropriate illustration. See Fig. 9. To install,
reverse removal procedures.

Brake On/Off (BOO) Switch ................... Cruise Control Systems\
Engine Performance
Shift Interlock Systems
Buzzer Module ...................................... Warning Systems
Camshaft Position (CMP) Sensor .................. Engine Performance\
Central Control Module ........................... Anti-Theft System
Clockspring ............................... Air Bag Restraint System
Cruise Control Systems
Steering Column Switches
Clutch Pedal Position Switch .............................. Starters
Clutch Start Switch ....................................... Starters
Combination Meter ......................... Analog Instrument Panels
Constant Control Relay Module (CCRM) ............ Engine Performance\
Electric Cooling Fans
Convenience Center .............................. Power Distribution
Illumination/Interior Lights
Convertible Top Motor ........................ Power Convertible Top
Convertible Top Switch ....................... Power Convertible Top
Crankshaft Position (CKP) Sensor ................ Engine Performance\
Cruise Control Module ....................... Cruise Control Systems
Cruise Control Switch ....................... Cruise Control Systems
Condenser Fan Relay(s) ....................... Electric Cooling Fans\
Data Link Connector (DLC) ....................... Engine Performance\
Daytime Running Lights Module ............... Daytime Running Lights
Exterior Lights
Defogger Relay ................................ Rear Window Defogger
Diagnostic Energy Reserve Module (DERM) ... Air Bag Restraint System\
Discriminating Sensor (Air Bag) ........... Air Bag Restraint System\
Distributor ..................................... Engine Performance
Door Lock Actuators ............................... Power Door Locks
Remote Keyless Entry
Door Lock Relay(s) ................................ Power Door Locks\
Electrochromic Mirror ................................ Power Mirrors
Electronic Level Control (ELC)
Height Sensor .............................. Electronic Suspension
Electronic Level Control (ELC) Module ........ Electronic Suspension\
Engine Coolant Temperature (ECT)
Sending Unit ............................ Analog Instrument Panels
Engine Coolant Temperature (ECT) Sensor ......... Engine Performance\
Engine Control Module ........................... Engine Performance
Generators & Regulators
Starters
ETACS ECU .......................................... Warning Systems
Power Windows
Remote Keyless Entry
Evaporative (EVAP) Emissions Canister ........... Engine Performance\
EVAP Canister Purge Solenoid .................... Engine Performance
EVAP Canister Vent Solenoid ..................... Engine Performance
Exhaust Gas Recirculation (EGR) Valve ........... Engine Performance\
Fuel Tank Vacuum Sensor ......................... Engine Performance
Fog Lights ....................................... Headlight Systems
Daytime Running Lights
Fog Light Relay .................................. Headlight Systems
Daytime Running Lights
Fuel Door Release Solenoid ................. Power Fuel Door Release
Fuel Gauge Sending Unit ................... Analog Instrument Panels
Fuel Injectors .................................. Engine Performance
Fuel Pump ....................................... Engine Performance
Fuel Pump Relay ................................. Engine Performance
Power Distribution
Fuse/Relay Block ................................ Power Distribution
Fusible Links ................................... Power Distribution
Generators & Regulators

Parking Brake Switch ...................... Analog Instrument Panels
Park Lights ........................................ Exterior Lights
Park/Neutral Position Switch .............................. Starters
Engine Performance
Anti-Theft System
Body Control Module
Perimeter Lighting Control Relay ................... Exterior Lights
Power Amplifier ..................................... Power Antennas
Power Antenna Module ................................ Power Antennas
Power Antenna Motor ................................. Power Antennas
Power Distribution Center ....................... Power Distribution
Generators & Regulators
Starters
Power Door Lock Motors ............................ Power Door Locks
Power Mirror Motors .................................. Power Mirrors
Memory Systems
Power Sliding Door Controller .............. Power Sliding Side Door
Power Seat Motors ...................................... Power Seats
Memory Systems
Power Steering Pressure Switch .................. Engine Performance
Power Top Motor .............................. Power Convertible Top
Power Top Relay(s) ........................... Power Convertible Top\
Powertrain Control Module ....................... Engine Performance
Analog Instrument Panels
Cruise Control Systems
Data Link Connectors
Generators & Regulators
Starters
Power Window Motors .................................. Power Windows
Power Window Relay(s) ................................ Power Windows\
Radiator Fan Motor(s) ........................ Electric Cooling Fans\
Radiator Fan Relay(s) ........................... Engine Performance\
Electric Cooling Fans
Rainsense Module .............................. Wiper/Washer Systems
Raise Relay .................................. Power Convertible Top
Remote Anti-Theft Personality (RAP) Module ....... Anti-Theft System\
Starters
Warning Systems
Seat Belt Pretensioners ................... Air Bag Restraint System
Seat Belt Retractor Solenoid .................... Passive Restraints
Seat Belt Switch .......................... Air Bag Restraint System
Passive Restraints
Shift Interlock Solenoid ................... Shift Interlock Systems
Shift Lock Actuator ........................ Shift Interlock Systems
Side Marker Lights ................................. Exterior Lights
SIR Coil Assembly (Clockspring) ........... Air Bag Restraint System\
Slip Ring (Clockspring) ................... Air Bag Restraint System\
Steering Column Switches
SRS Control Module ........................ Air Bag Restraint System
Starter Motor ............................................. Starters
Starter Interrupt Relay ................................... Starters
Starter Solenoid .......................................... Starters
Starter Relay ............................................. Starters
Steering Wheel Position Sensor .................... Anti-Lock Brakes
Stoplights ......................................... Exterior Lights
Stoplight Switch ................................ Engine Performance
Cruise Control Systems
Anti-Lock Brakes
Sun Roof ECU ........................................ Power Sun Roof
Sun Roof Motor ...................................... Power Sun Roof
Sun Roof Position Sensor ............................ Power Sun Roof
Taillights ......................................... Exterior Lights
Throttle Position (TP) Sensor ................... Engine Performance\

DISTRIBUTOR
NOTE: Eclipse, Mirage 1.8L, Montero, Montero Sport 3.0L and 3000GT
DOHC use Distributorless Ignition System (DIS). All other
models use distributor type ignition systems with
non-serviceable distributors on which only the rotor and
distributor cap can be changed.
FUEL SYSTEM
* PLEASE READ THIS FIRST *
WARNING: Always relieve fuel pressure before disconnecting any fuel
injection-related component. DO NOT allow fuel to contact
engine or electrical components.
FUEL SYSTEM PRESSURE RELEASE
Relieving Fuel Pressure
1) On Diamante, disconnect fuel pump harness connector at
fuel tank from underneath vehicle. On Montero and Montero Sport,
remove cargo compartment carpet, remove access plate and disconnect
fuel pump harness connector. On all other models, remove rear seat
cushion and remove access plate (if required) to disconnect fuel pump
harness connector.
2) On all models, start engine. Let engine run until it
stops. Turn ignition off. Disconnect negative battery cable. Connect
fuel pump harness connector. Reinstall rear seat (if necessary.)
FUEL PUMP
Removal & Installation (Diamante, Eclipse, Galant & Montero)
1) Fuel pump assembly is located inside fuel tank. Release
fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Remove access panel
under seat, in trunk or in rear cargo area. Disconnect electrical
connectors and fuel hoses at fuel tank.
2) Remove fuel filler hose from fuel tank. Remove fuel pump
assembly. To install, reverse removal procedure. Tighten nuts to
specification. See TORQUE SPECIFICATIONS .
Removal & Installation (Mirage, Montero Sport & 3000GT)
1) Fuel pump assembly is located inside fuel tank. Release
fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Raise vehicle on
hoist. Drain fuel into suitable container. Disconnect electrical
connectors and breather/fuel hoses at fuel tank.
2) Remove fuel filler hose from fuel tank. Support fuel tank
with transmission jack. Remove nuts securing fuel tank. Remove fuel
tank from vehicle. Remove fuel pump assembly. To install, reverse
removal procedure. Tighten nuts to specification. See
TORQUE SPECIFICATIONS .
FUEL RAILS & INJECTORS
WARNING: Use a rag to cover fuel hose connection before disconnecting
high pressure fuel hose at fuel rail. Some residual fuel
pressure may still be in system.
CAUTION: DO NOT drop injectors while removing or installing fuel rail.
Removal (Diamante, Montero Sport 2.4L & 3000GT)