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 (93 C).
* 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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1) Front HO2S is mounted in exhaust pipe below exhaust
header. Rear HO2S is mounted behind catalytic converter. HO2S is
equipped with a permanent pigtail which must be protected from damage
when HO2S is removed. Ensure HO2S is free of contaminants. Avoid using
cleaning solvents of any type.
2) HO2S may be difficult to remove when engine temperature is
less than 120
F (48 C). If using original sensor, always use anti-
seize compound on threads before installation. New sensor threads are
precoated with anti-seize. Tighten HO2S to specification. See
TORQUE SPECIFICATIONS .
THROTTLE BODY
Removal
1) Relieve fuel pressure. See FUEL SYSTEM PRESSURE RELEASE.
Drain enough coolant to ensure coolant level is below throttle body.
Disconnect air intake hose.
2) Remove accelerator, cruise control and A/T throttle valve
cables (if equipped). Disconnect fuel vapor hose, electrical harness
connector, vacuum hose and coolant hoses. Remove throttle body
retaining bolts.
Disassembly
Remove throttle position sensor. Remove idle air control
motor. Remove throttle bracket and connector bracket (if equipped).
Remove idle position switch and adjusting nut (if equipped).
CAUTION: DO NOT remove throttle valve. DO NOT use cleaning solvents
on throttle position sensor, idle air control motor or idle
position switch.
Cleaning
1) Clean all parts except throttle position sensor, idle air
control motor and idle position switch in solvent.
WARNING: Safety glasses MUST be worn whenever compressed air is used
for parts cleaning.
2) Check vacuum port and passage for clogging. Clean vacuum,
vapor and fuel passages using compressed air.
Reassembly
To reassemble, reverse disassembly procedure.
Installation
To install, reverse removal procedure.
THROTTLE POSITION (TP) SENSOR
Removal & Installation
Throttle Position (TP) sensor is located on throttle body.
Disconnect TP sensor electrical connector. Remove TP sensor screws and
TP sensor. To install, reverse removal procedure. Tighten TP sensor
screws to specification. See TORQUE SPECIFICATIONS. For TP sensor
adjustment procedure, see D - ADJUSTMENTS article.
TURBOCHARGERS
Removal (Eclipse)
1) Disconnect negative battery cable. Drain engine coolant
and oil. On models equipped with A/C, remove condenser fan motor
assembly. Remove front heated oxygen sensor. Remove oil dipstick guide
and "O" ring.
STEERING COLUMN
1998 Mitsubishi Montero
1997-98 STEERING
Mitsubishi - Steering Columns - RWD & 4WD
Mitsubishi: Montero, Montero Sport
DESCRIPTION & OPERATION
WARNING: Vehicle is equipped with a Supplemental Restraint System
(SRS) that includes an air bag located in steering wheel.
Use caution when working around steering column. Ensure
battery is disconnected before attempting any repair. DO NOT
apply electrical power to any component on steering column
without disconnecting air bag module (air bag could deploy).
Steering column consists of a collapsible steering shaft with
lower joint assembly. Vehicle is equipped with a Supplemental
Restraint System (SRS) that includes an air bag and clockspring
located in steering column wheel.
NOTE: For information not covered in this article, air bag
DIAGNOSIS & TESTING or DISPOSAL PROCEDURES, see AIR BAG
RESTRAINT SYSTEM article.
DISABLING & ACTIVATING AIR BAG SYSTEM
WARNING: Wait at least 60 seconds after disconnecting negative
battery cable before servicing SRS. System reserve capacitor
maintains SRS voltage for about 60 seconds after battery is
disconnected. Servicing SRS before 60-second period may
cause accidental air bag deployment and possible personal
injury.
To disable system, turn ignition switch to OFF position.
Disconnect and isolate negative battery cable end. Wait at least 60
seconds. To activate system, reconnect negative battery cable.
AIR BAG SERVICE PRECAUTIONS
The following precautions should be observed when working
with SRS:
* Disable SRS before servicing any SRS or steering column
component. Failure to do this may result in accidental air
bag deployment and possible personal injury. See DISABLING &
ACTIVATING AIR BAG SYSTEM.
* Wait at least 60 SECONDS after disabling air bag system. SRS
system retains enough voltage, for a short time after system
is disabled, to deploy air bag.
* After repairs, always turn ignition on to ensure SRS warning
light is working properly and no system faults are indicated.
* Always wear safety glasses when servicing or handling an air
bag.
* DO NOT expose air bag module and clockspring to temperatures
more than 200
F (93 C).
* When placing a live air bag on a bench or other surface,
always face air bag 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 irritate 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.
* 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 live air bag module, trim cover should be
pointed away from body to minimize injury in case of
accidental air bag deployment.
* 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.
REMOVAL & INSTALLATION
STEERING WHEEL
WARNING: Wait at least 60 seconds after disconnecting negative
battery cable before servicing SRS. System reserve capacitor
maintains SRS voltage for about 60 seconds after battery is
disconnected. Servicing SRS before 60-second period may
cause accidental air bag deployment and possible personal
injury.
Removal
Disable air bag. See DISABLING & ACTIVATING AIR BAG SYSTEM .
Ensure steering wheel is straight ahead. Remove air bag. Place
reference mark on steering wheel and steering column shaft for
installation reference. Remove steering wheel nut and washer. Using
steering wheel puller, remove steering wheel.
CAUTION: DO NOT hammer on steering wheel during removal or
installation, as it may damage steering column.
Installation
To install, reverse removal procedure. Ensure reference marks
are aligned. Tighten fasteners to specification. See
TORQUE SPECIFICATIONS . Activate air bag. See DISABLING & ACTIVATING
AIR BAG SYSTEM.
COMBINATION SWITCH
CAUTION: When installing steering wheel, if rotating part of
clockspring is not properly centered with steering column
and front wheels, clockspring failure will result.
Removal & Installation
Remove lower instrument cover and lower heater duct. Remove
air bag and steering wheel. See STEERING WHEEL under
REMOVAL & INSTALLATION . Remove upper and lower steering column covers.
Disconnect clockspring electrical connector. Remove screws attaching
colckspring and remove clockspring. Disconnect combination switch
electrical connectors. Remove screws and combination switch. To
install, reverse removal procedure.