warning MITSUBISHI MONTERO 1998 Owner's Guide
[x] Cancel search | Manufacturer: MITSUBISHI, Model Year: 1998, Model line: MONTERO, Model: MITSUBISHI MONTERO 1998Pages: 1501, PDF Size: 25.81 MB
Page 188 of 1501
and make an informed decision about how to proceed.
BRAKES
SERVICE PROCEDURES REQUIRED & SUGGESTED FOR PROPER
VEHICLE OPERATION
Some states may have specifications that differ from OEM.
Check your local/state regulations. Where state or local laws are
stricter, they take precedence over these guidelines.
ACCELEROMETERS (G SENSOR OR LATERAL)
ACCELEROMETER INSPECTION \
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Condition Code Procedure
Broken .................. A ............ Require replacement.
Connector loose ......... A .. Require repair or replacement.
Loose ................... B .. Require repair or replacement.
Missing ................. C ............ Require replacement.
Out of position ......... B ....... Require re-positioning to
vehicle manufacturer's
specifications.
Output signal incorrect . B ............ Require replacement.
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ACCUMULATORS
ACCUMULATOR INSPECTION \
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Condition Code Procedure
Leaking ................. B ............ Require replacement.
Missing ................. C ............ Require replacement.
Pre-charge incorrect .... B ............ Require replacement.
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ANCHOR PINS
See BACKING PLATES .
ANTI-LOCK BRAKE SYSTEMS
NOTE: Anti-lock brakes are an integral part of the brake system. It
is essential that the anti-lock brakes function properly when
brake service is performed.
Anti-lock brake systems are commonly referred to as "ABS" and
will be referred to as "ABS" throughout these guidelines. Some ABS
components also function as part of a traction control system (TCS).
WARNING: When diagnosing and servicing high pressure components,
observe safety procedures and equipment requirements
established by the vehicle manufacturer to reduce the
possibility of serious personal injury.
NOTE: Intermittent electrical conditions are often caused by a loss
of ground, poor connection, or water intrusion into the
wiring harness.
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CRUISE CONTROL SYSTEM
1998 Mitsubishi Montero
1998 ACCESSORIES & EQUIPMENT
Mitsubishi - Cruise Control Systems
Montero
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.
Cruise control system is electronically and vacuum
controlled. System components include a control unit, actuator, vacuum
pump, cruise control switch, clutch pedal position switch (M/T),
cruise indicator light, diode, Park/Neutral (P/N) switch (A/T),
stoplight switch, vehicle speed sensor and A/T control unit (if
equipped).
System has self-diagnostic capability. When self-diagnostic
mode is activated, each switch and sensor is checked for defects. When
cruise control system has been canceled without using a normal cancel
method, a trouble code will be set and stored in control unit. Trouble
codes can be retrieved to help determine which circuit is
malfunctioning.
COMPONENT LOCATIONS
COMPONENT LOCATIONS TABLE \
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Component Location
Cruise Control ECU .............. Behind Dash, On Steering
Column Bracket
Data Link Connector (DLC) ....... Under Left Side Of Dash,
Near Steering Column
Vehicle Speed Sensor ........... On Speedometer Assembly &
On Transmission
Throttle Position Sensor ........ Mounted On Throttle Body
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ADJUSTMENTS
CRUISE CONTROL CABLE
Remove link protector. Loosen lock nut. Hold link "A" so that
it touches link "B". Adjust free play by turning adjusting nut until
free play is.04-.08" (1-2 mm). Tighten lock nut. See Fig. 1 or 2.
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CRUISE CONTROL INDICATOR TEST under COMPONENT TESTS. If cruise control
indicator is defective, replace indicator. If indicator checks okay,
go to next step.
2) If cruise control indicator illuminates when cruise
control connector C-50 terminal No. 23 is grounded at harness side,
replace cruise control ECU. If indicator does not illuminate, check
combination meter connector C-12 and cruise control ECU connector C-
50. Repair as necessary. If connectors are okay and malfunction
remains, check harness between combination meter and cruise control
ECU. Repair as necessary.
Test No. 13
1) Perform stoplight switch test. See
BRAKELIGHT/STOPLIGHT SWITCH TEST under COMPONENT TESTS. If switch is
okay, go to next step. If switch is defective, replace brakelight
switch.
2) Check cruise control ECU connector C-50, stoplight switch
connector C-55 and joint connector C-131. Repair as necessary. See
Figs. 13 , 14, 16 and 29. If connectors are okay and malfunction
remains, check harness between joint connector C-131 and cruise
control ECU.
Test No. 14 (A/T)
1) Perform park/neutral switch test. See
PARK/NEUTRAL SWITCH TEST under COMPONENT TESTS. If switch is okay, go
to next step. If switch is defective, replace switch.
2) Check starter relay. Replace if defective. If relay is
okay, check cruise control ECU connector C-50 and joint connector C-
130. Repair as necessary. See Figs. 13, 16 and 28. If connectors are
okay and malfunction remains, check harness between cruise control ECU
and power supply.
COMPONENT TESTS
ACTUATOR TEST
Remove actuator. Apply vacuum to actuator. Actuator linkage
holder should move more than 1.38" (35 mm). Actuator diaphragm should
hold vacuum. Replace actuator if actuator does not test as specified.
BRAKELIGHT/STOPLIGHT SWITCH TEST
Disconnect stoplight switch connector C-55. When brake pedal
is pressed, continuity should be present between terminals No. 2 and
3. See Fig. 14. When brake pedal is released, continuity should be
present between terminals No. 1 and 4. Replace switch if it does not
test as specified.
CLOCKSPRING TEST
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.
If clockspring fails any check, replace with a NEW
clockspring.
1) Check connectors and protective tube for damage and
deformities.
2) Visually check case for damage or deformities.
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* PLEASE READ THIS FIRST *
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.
ACTUATOR
Removal & Installation
Disconnect cruise control cable from link. Disconnect
actuator wiring connector. Remove vacuum pump and vacuum pump bracket.
Remove actuator and actuator bracket. To install, reverse removal
procedure.
CRUISE CONTROL ECU
Removal & Installation
Cruise control ECU is located behind center of dash panel.
Remove center trim panel and radio or radio plug bezel. Remove control
unit. To install, reverse removal procedure.
CRUISE CONTROL SWITCH
Removal & Installation
Remove lower steering column cover. Disconnect electrical
connectors. Remove screws attaching cruise control switch to steering
column. Remove switch. To install, reverse removal procedure.
INSTRUMENT CLUSTER
Removal & Installation
Disconnect negative battery cable. Remove cluster cover.
Disconnect speedometer cable. Remove instrument cluster. To install,
reverse removal procedure.
WIRING DIAGRAMS
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DIFFERENTIAL LOCK - REAR
1998 Mitsubishi Montero
1997-98 DRIVE AXLES
Mitsubishi Rear Differential Lock
Montero, Montero Sport
DESCRIPTION & OPERATION
The rear differential lock system is designed to be used only
when low-speed wheel spin occurs in a ditch, or on a slippery or
uneven surface. The indicator light will blink when switch is turned
on as system completes locking operation. After the differential is
locked, the light will stop blinking and remain on.
The rear differential lock system will not lock with vehicle
in 4H or 2H position, and if vehicle speed is greater than 7 MPH.
Vehicle speed should be maintained at less than 12 MPH during rear
differential lock operation.
NOTE: The Anti-lock Brake System (ABS) does not operate when the
rear differential is locked. It is normal for the ABS
warning light to be on at this time.
COMPONENT LOCATIONS
Rear Differential Lock Air Pump
Air pump is located under left side of rear seat.
Rear Differential Lock Control Unit
Control unit is located under left side lower quarter trim
panel in rear compartment.
Rear Differential Lock Switch
Lock switch is located on lower center of instrument panel,
below radio.
Rear Differential Lock Detection Switch
Lock detection switch is located on rear differential
carrier.
TROUBLE SHOOTING
INDICATOR LIGHT FLASHES WHEN LOCK SWITCH IS TURNED ON
If vehicle speed is greater than 7 MPH, reduce speed to less
than 3 MPH. If vehicle speed is less than 7 MPH, rotate steering wheel
to right and left to reset light.
INDICATOR LIGHT FLASHES WHEN LOCK SWITCH IS TURNED OFF
If indicator flashes after lock switch is turned off, depress
and release accelerator several times while driving straight ahead to
reset light.
TESTING
REAR DIFFERENTIAL LOCK AIR PUMP
Page 462 of 1501
ELECTRICAL COMPONENT LOCATOR
1998 Mitsubishi Montero
1998 ELECTRICAL COMPONENT LOCATION
Mitsubishi - Electrical Component Location
Montero
SAFETY PRECAUTION
WARNING: When working on vehicles equipped with Supplemental Restraint
System (SRS), never apply electrical voltage to the system.
This could cause the SRS (air bag) to be deployed.
BUZZERS, RELAYS & TIMERS
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Component Component Location \
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ABS Motor Relay In right rear of engine
compartment, in ABS relay box.
ABS Valve Relay In right rear of engine
compartment, in ABS relay box.
A/C Compressor Relay In engine compartment
relay box.
Page 531 of 1501
ELECTROSTATIC DISCHARGE WARNING - BASIC INFORMATION
1998 Mitsubishi Montero
GENERAL INFORMATION
Electrostatic Discharge (ESD) Warning - Basic Information
All Makes amd Models
* PLEASE READ THIS FIRST *
NOTE: This article is intended for general information purposes
only.
INTRODUCTION
All Electrostatic Discharge (ESD) sensitive components
contain solid state circuits (transistors, diodes, semiconductors)
that may become damaged when contacted with an electrostatic charge.
The following information applies to all ESD sensitive devices. The
ESD symbol shown in Fig. 1 may be used on schematics to indicate which
components are ESD sensitive. See Fig. 1. Although different
manufactures may display different symbols to represent ESD sensitive
devices, the handling and measuring precautions and procedures are the
same.
Fig. 1: Sample ESD Symbol
HANDLING STATIC-SENSITIVE CIRCUITS/DEVICES
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1 - Part is close to the end of its useful life (just above
discard specifications, or weak; failure likely to occur
soon, etc.)
2 - To address a customer need, convenience, or request (to
stiffen ride, enhance performance, eliminate noise,
etc.)
3 - To comply with maintenance recommended by the vehicle's
Original Equipment Manufacturer (OEM)
4 - Technician's recommendation based on substantial and
informed experience
NOTE: Suggested services are always optional. When presenting
suggested repairs to the customer, you must present
the facts, allowing the customer to draw their own
conclusions and make an informed decision about how to
proceed.
EXHAUST
SERVICE PROCEDURES REQUIRED AND SUGGESTED FOR PROPER
VEHICLE OPERATION
WARNING: Federal EPA rules prohibit altering an exhaust system in
any way that defeats the emission reduction components of a
vehicle. Be sure to review and adhere to EPA policy on
removing and replacing catalytic converters. Where state or
local laws are stricter, they take precedence over these
guidelines.
NOTE: Some exhaust systems are of a welded design. It is not
required that the entire system be replaced. Determine the
need to replace individual components based on conditions of
component.
CATALYTIC CONVERTERS
CAUTION: Before working on an exhaust system, review EPA
regulations on removing and replacing catalytic converters.
NOTE: Any time a converter has failed, further diagnosis is
required to determine the reason(s) for converter failure.
CATALYTIC CONVERTER INSPECTION
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Condition Code Procedure
Air injection tube
broken ................. A ... Require repair or replacement
of injection tube or
replacement of catalytic
converter.
Air injection tube
burnt .................. A ... Require repair or replacement
of injection tube or
replacement of catalytic
converter.
Air injection tube
leaking ................ A ... Require repair or replacement
of injection tube or
replacement of catalytic
converter.
Air injection tube
Page 702 of 1501
F - BASIC TESTING
1998 Mitsubishi Montero
1998 ENGINE PERFORMANCE
Mitsubishi - Basic Diagnostic Procedures
Diamante, Eclipse, Galant, Mirage, Montero, Montero Sport,
3000GT
INTRODUCTION
The following diagnostic steps will help prevent overlooking
a simple problem. This is also where to begin diagnosis for a no-start
condition. The first step in diagnosing any driveability problem is
verifying the customer's complaint with a test drive under the
conditions the problem reportedly occurred.
Before entering self-diagnostics, perform a careful and
complete visual inspection. Most engine control problems result from
mechanical breakdowns, poor electrical connections or
damaged/misrouted vacuum hoses. Before condemning the computerized
system, perform each test listed in this article.
NOTE: Perform all voltage tests with a Digital Volt-Ohmmeter
(DVOM) with a minimum 10-megohm input impedance, unless
stated otherwise in test procedure.
PRELIMINARY INSPECTION & ADJUSTMENTS
VISUAL INSPECTION
Visually inspect all electrical wiring, looking for chafed,
stretched, cut or pinched wiring. Ensure electrical connectors fit
tightly and are not corroded. Ensure vacuum hoses are properly routed
and are not pinched or cut. See M - VACUUM DIAGRAMS article to verify
routing and connections (if necessary). Inspect air induction system
for possible vacuum leaks.
MECHANICAL INSPECTION
Compression
Check engine mechanical condition with a compression gauge,
vacuum gauge, or an engine analyzer. See engine analyzer manual for
specific instructions.
WARNING: DO NOT use ignition switch during compression tests on fuel
injected vehicles. Use a remote starter to crank engine.
Fuel injectors on many models are triggered by ignition
switch during cranking mode, which can create a fire hazard
or contaminate the engine's oiling system.
Check engine compression with engine at normal operating
temperature, all spark plugs removed and throttle wide open. See
COMPRESSION SPECIFICATIONS table.
COMPRESSION SPECIFICATIONS TABLE
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Application (1) Specification
Compression Ratio
1.5L (VIN A) ..................................... 9.0:1
1.8L (VIN C) ..................................... 9.5:1
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2.0L
(VIN F) ........................................ 8.5:1
(VIN Y) ........................................ 9.6:1
2.4L (VIN G) ..................................... 9.5:1
3.0L
(VIN H) ........................................ 8.9:1
(VIN J) ....................................... 10.0:1
(VIN K) ........................................ 8.0:1
(VIN P) ........................................ 9.0:1
3.5L (VIN M & P) ................................. 9.0:1
Compression Pressure
1.5L (VIN A) ..................... 192 psi (13.4 kg/cm
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1.8L (VIN C) ..................... 199 psi (13.9 kg/cm)
2.0L (VIN F) ..................... 178 psi (12.5 kg/cm)
2.0L (VIN Y) ............ 170-225 psi (11.7-15.5 kg/cm)
2.4L (VIN G) ..................... 192 psi (13.4 kg/cm)
3.0L
(VIN H & P) .................... 171 psi (12.0 kg/cm
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(VIN J) ........................ 185 psi (13.0 kg/cm)
(VIN K) ........................ 156 psi (10.9 kg/cm)
3.5L (VIN M & P) ................. 171 psi (12.0 kg/cm)
Maximum Variation
Between Cylinders ( 2) ............... 14 psi (1.0 kg/cm
)
( 1) - See A - ENGINE/VIN ID article for VIN information.
( 2) - On Eclipse 2.0L non-turbo engine, maximum variation
between cylinders is 25%.
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Exhaust System Backpressure
The exhaust system can be tested with a vacuum or pressure
gauge. If using a pressure gauge, remove HO2S or air injection check
valve (if equipped). Connect a 0-5 psi pressure gauge and run engine
at 2500 RPM. If exhaust system backpressure is greater than 2 psi,
exhaust system or catalytic converter is plugged.
If using a vacuum gauge, connect vacuum gauge hose to intake
manifold vacuum port. Start engine. Observe vacuum gauge. Open
throttle part way and hold steady. If vacuum gauge indication slowly
drops after stabilizing, inspect exhaust system for restriction.
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.
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, remove access plate (if required) and 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. Install rear seat and/or carpet as
necessary.
WARNING: Before disconnecting high pressure fuel hose at fuel