1998 MITSUBISHI MONTERO ECU

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wipers rims inflation pressure four wheel drive engine trailer

Page 28 of 1501

$MITSUBISHI MONTERO 1998 Service Manual \ \b\ \ \ \ \ \ EAC Electric Assist Choke$

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EAC Electric Assist Choke

EACV Electric Air Control Valve

EBCM Electronic Brake Control Module

ECA Electronic Control Assembly

ECAT Electronically Controlled Automatic Transaxle

ECM Electronic Control Module

ECT Engine Coolant Temperature Sensor

ECU Electronic Control Unit or Engine Control Unit

EDF Electric Drive Fan relay assembly

EDIS Electronic Distributorless Ignition System

EEC Electronic Engine Control

EECS Evaporative Emission Control System

EEPROM Electronically Erasable PROM

EFE Early Fuel Evaporation

EFI Electronic Fuel Injection

EGO Exhaust Gas Oxygen sensor (see HEGO)

EGR Exhaust Gas Recirculation system

EGRC EGR Control solenoid or system

EGRV EGR Vent solenoid or system

EMR Emission Maintenance Reminder Module

ESA Electronic Spark Advance

ESC Electronic Spark Control

EST Electronic Spark Timing

ETR Emergency Tensioning Retractor

EVAP Fuel Evaporative System

EVIC Electronic Vehicle Information Center

EVO Electronic Variable Orifice

EVP EGR Valve Position Sensor

EVR EGR Valve Regulator

EVRV Electronic Vacuum Regulator Valve

Elect. Electronic

Eng. Engine

Evap. Evaporative

Exc. Except

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"F" ABBREVIATION TABLE
"F" ABBREVIATION TABLE\
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ABBREVIATION DEFINITION

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F Fahrenheit (Degrees)

F/B Fuse Block

FBC Feedback Carburetor

FI Fuel Injector or Fuel Injection

FICD Fast Idle Control Device

FIPL Fuel Injector Pump Lever

FP Fuel Pump

FPM Fuel Pump Monitor

FPR-VSV Fuel Pressure Regulator Vacuum Switching Valve

FWD Front Wheel Drive

Fed. Federal

Ft. Lbs. Foot Pounds

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"G" ABBREVIATION TABLE
"G" ABBREVIATION TABLE\
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ABBREVIATION DEFINITION

Page 40 of 1501

MITSUBISHI MONTERO 1998 Service Manual SHAFT SEAL
CAUTION: Secure rear housing to compressor body using a vise before
removing front housing through-bolts. Compressor rear housing
may separate from compressor bo

Page 68 of 1501

MITSUBISHI MONTERO 1998 Service Manual conductors exposed ..... A .. Require repair or replacement.
Insulation damaged,
conductors not exposed . 1 .. Suggest repair or replacement.
Missing ................. C ............ Req

conductors exposed ..... A .. Require repair or replacement.
Insulation damaged,
conductors not exposed . 1 .. Suggest repair or replacement.
Missing ................. C ............ Require replacement.
Routed incorrectly ...... B ................. Require repair.
Secured incorrectly ..... B ................. Require repair.
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.
( 1) - Determine cause and correct prior to replacement
of part.
( 2) - Inoperative includes intermittent operation.
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FUSIBLE LINKS
See FUSES, FUSIBLE LINKS AND CIRCUIT BREAKERS .
GASKETS
GASKET INSPECTION\
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Condition Code Procedure
Leaking ................. A ........... ( 1) Require repair or
replacement.
( 1) - Require inspection of mating and sealing surface and
repair or replace as necessary.
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HEATER CASES
See PLENUMS.
HEATER CONTROL VALVES
HEATER CONTROL VALVE INSPECTION\
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Condition Code Procedure
Application incorrect ... B ............ Require 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

Page 83 of 1501

MITSUBISHI MONTERO 1998 Service Manual specification .......... A .. Require repair or replacement.
Circuit shorted ......... A .. Require repair or replacement.
Connector melted,
affecting performance .. A ........... (1) Re

Page 107 of 1501

MITSUBISHI MONTERO 1998 Service Manual AIR BAG RESTRAINT SYSTEM
1998 Mitsubishi Montero
1998 AIR BAG RESTRAINT SYSTEMS
Mitsubishi
Montero
DESCRIPTION & OPERATION
WARNING: To avoid injury from acciden

Page 108 of 1501

MITSUBISHI MONTERO 1998 Service Manual When ignition switch is turned to ON or START position, SRS
warning light on instrument panel should come on for about 7 seconds
and then go off. This indicates SRS-ECU has determined SRS is

When ignition switch is turned to ON or START position, SRS
warning light on instrument panel should come on for about 7 seconds
and then go off. This indicates SRS-ECU has determined SRS is
functioning properly. If SRS warning light flashes, stays on all the
time, or does not come on, a fault exists in SRS. See
DIAGNOSIS & TESTING.
FRONT IMPACT SENSORS
Sensors are inertia switches that verify direction and
severity of impact. If impact is great enough, switch contacts close,
completing an electrical circuit. Front impact sensors are located
under front fenders. See Fig. 1.
AIR BAG MODULE(S)
An inflator assembly in the air bag module produces nitrogen
gas to fill air bag. See Fig. 1. When a small amount of current from
SRS-ECU is applied, ignitor starts a thermal reaction, which spreads
to a pellet-filled canister that produces nitrogen gas. Gas pressure
builds and discharges from inflator through a diffuser and screen
assembly, forcing trim cover to burst along its seams until air bag is
fully inflated. When air bag is fully inflated, gas escapes through
vents on sides of air bag.
SRS AIR BAG CONTROL UNIT (ECU)
SRS-ECU (with integral safing and analog impact sensor) is
located behind front floor console assembly. See Fig. 1. If a system
fault occurs, SRS-ECU memory stores a diagnostic trouble code (DTC).
DATA LINK CONNECTOR (DLC)
DLC is located under left side of dash. See Fig. 1. DLC is
used to access SRS self-diagnostics through Mitsubishi Multi-Use
Tester II (MUT-II) (MB991502).
CLOCKSPRING
Clockspring connects driver-side air bag module to steering
column wiring, forming SRS circuit. See Fig. 1. Clockspring is a flat,
ribbon-like cable that winds and unwinds when steering wheel is
turned. Because of clockspring's constant movement, it is the most
fragile part in the system.
SYSTEM OPERATION CHECK
WARNING: After servicing, always turn ignition on from passenger-side
of vehicle in case of accidental air bag deployment.
Turn ignition switch to ON position. SRS warning light on
instrument panel should come on for about 7 seconds and then turn off.
This indicates SRS is functioning properly. If SRS warning light does
not come on, stays on, or comes on while driving, SRS is
malfunctioning and needs repair. See DIAGNOSIS & TESTING.
SERVICE PRECAUTIONS
Observe the following precautions when working with SRS:
* Disable SRS before servicing any SRS or steering column

Page 109 of 1501

MITSUBISHI MONTERO 1998 Service Manual component. Failure to do this may result in accidental air
bag deployment and possible personal injury. Refer to
DISABLING & ACTIVATING AIR BAG SYSTEM .
* For about

component. Failure to do this may result in accidental air
bag deployment and possible personal injury. Refer to
DISABLING & ACTIVATING AIR BAG SYSTEM .
* For about 60 seconds after air bag system is disabled, it
retains enough voltage to deploy air bags. After disabling
system, wait at least 60 seconds before servicing.
* After servicing, always turn ignition on from passenger-side
of vehicle in case of accidental air bag deployment.
* After servicing, check SRS warning light to verify system
operation. See SYSTEM OPERATION CHECK.
* Always wear safety glasses when servicing or handling an
air bag.
* The SRS-ECU must be stored in its original special container
until used for service. It must be stored in a clean, dry
place, away from sources of extreme heat, sparks and high
electrical energy.
* DO NOT expose air bag module and clockspring to temperatures
greater than 200
F (93C).
* When placing a live air bag module on a bench or other
surface, always face air bag module and trim cover up, away
from surface. This will reduce motion of module if air bag
accidentally deploys.
* After air bag deploys, air bag surface may contain deposits
of sodium hydroxide, which irritates skin. Always wear
safety glasses, rubber gloves and long-sleeved shirt during
clean-up. Wash hands using mild soap and water. Follow
correct clean-up and disposal procedures. Refer to
DISPOSAL PROCEDURES .
* Because of critical system operating requirements, DO NOT
service any SRS components. Repairs are only made by
replacing defective part(s).
* DO NOT allow any electrical source near inflator on the back
of air bag module.
* When carrying a live (undeployed) air bag module, trim cover
must be pointed away from body to minimize injury in case of
accidental air bag deployment.
* DO NOT probe wire harness connector terminals. Instead, use
SRS Check Harness (MB991530).
* DO NOT probe a wire through insulator, as this will damage
it and eventually cause failure due to corrosion.
* When performing electrical tests, prevent accidental
shorting of terminals. Such shorts can damage fuses or
components and may cause a second fault code to set, making
diagnosis of original problem more difficult.
* Never use an analog volt/ohm meter or test light in place of
a Digital Volt/Ohm Meter (DVOM). Use only a DVOM with a
maximum test current of 2 mA (milliamps) at minimum range of
resistance measurement. Also see SPECIAL TOOLS.
* If SRS is not fully functional for any reason, DO NOT drive
vehicle until system is repaired and is fully functional. DO
NOT remove bulbs, modules, sensors or other components, or
in any way disable system from operating normally. If SRS is
not functional, park vehicle until repairs are made.
SPECIAL TOOLS
To avoid air bag deployment when working on SRS, DO NOT use
electrical test equipment such as test lights, battery or A/C-powered
volt/ohmmeter, or any type of electrical equipment other than those
specified by manufacturer. See SRS RECOMMENDED TOOLS table.
SRS RECOMMENDED TOOLS TABLE
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Page 110 of 1501

MITSUBISHI MONTERO 1998 Service Manual Tool Name Tool Number
For Component Replacement
Steering Wheel Puller ......................... MB990803
For Testing SRS
Digital Volt-Ohm Meter (DVOM) ...

Tool Name Tool Number
For Component Replacement
Steering Wheel Puller ......................... MB990803
For Testing SRS
Digital Volt-Ohm Meter (DVOM) ...................... (1)
Multi-Use Tester II ........................... MB991502
ROM Pack ........................................... ( 2)
SRS Check Harness ............................. MB991613
For Deploying Air Bags
SRS Air Bag Adapter Harness "A" ( 3) ........... MB686560
SRS Air Bag Adapter Harness "B" ( 4) ........... MB628919
( 1) - Maximum current output of DVOM must not exceed 2 mA
(milliamps) when set on minimum range of resistance
measurement.
( 2) - ROM pack is used with multi-use tester.
( 3) - For on-vehicle deployment of driver-side air bag. For
on-vehicle or off-vehicle deployment of passenger-side
air bag.
( 4) - For off-vehicle deployment of driver-side air bag.
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DISABLING & ACTIVATING AIR BAG SYSTEM
WARNING: SRS system voltage is maintained for about 60 seconds after
battery cable is disconnected. After disconnecting battery
cable, wait at least 60 seconds before servicing SRS.
Failure to wait may cause accidental air bag deployment and
possible personal injury.
To disable system, turn ignition switch to LOCK position.
Disconnect negative battery cable. Shield cable end. Wait at least 60
seconds before servicing. To activate system, reconnect negative
battery cable.
DISPOSAL PROCEDURES
WARNING: Undeployed air bag must be deployed before disposal.
Disposing of an undeployed air bag may violate federal,
state and/or local laws. This also applies to vehicles that
are to be scrapped. Never sell a used air bag module.
UNDEPLOYED AIR BAG
WARNING: Deploy air bag outdoors and away from people. Air bag
deployment makes a loud noise. NEVER deploy air bag module
with trim cover face down.
NOTE: If replacing a deployed air bag, both front impact sensors
and SRS-ECU must also be replaced. If vehicle is to be
scrapped, perform PROCEDURE 1 (ON-VEHICLE DEPLOYMENT) below.
If vehicle will continue to be operated, perform PROCEDURE 2
(OFF-VEHICLE DEPLOYMENT) below.
Procedure 1 (On-Vehicle Deployment)
1) Before proceeding, follow air bag service precautions. See
SERVICE PRECAUTIONS . Open all doors and windows. Move vehicle to an
isolated area. Disconnect negative battery cable and wrap tape around
cable terminal.
2) Disconnect positive battery cable. Remove battery. Wait at

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