Mitsubishi Montero (1998+). Manual — part 180

98V220000: FRONT BRAKE LINE INSPECTION

1998 Mitsubishi Montero

NHTSA RECALL BULLETIN

Model(s): 1997-98 Mitsubishi Montero

Campaign No: 98V220000

Number of Affected Vehicles: 61800

Beginning Date of Manufacture: 1996 JUN

Ending Date of Manufacture: 1998 MAY

VEHICLE DESCRIPTION:

Sport utility vehicles.

DESCRIPTION OF DEFECT:

The front brake lines can develop pin holes due to chaffing against

the edge of the pass-through hole in the inner fender.

CONSEQUENCE OF DEFECT:

Brake fluid can leak resulting in deteriorated braking performance and

illumination of the brake indicator lamp.

CORRECTIVE ACTION:

Dealers will inspect the front brake lines for signs of wear and

routing. If the lines are not correctly centered in the pass-through

hole, the lines will be repositioned by bending slightly to correct.

If there is evidence of brake line wear, the brake line will be

replaced.

OWNER NOTIFICATION:

Owner notification is expected to begin October 19, 1998. Owners who

take their vehicles to an authorized dealer on an agreed upon service

date and do not receive the free remedy within a reasonable time

should contact Mitsubishi at 1-800-222-0037. Also contact the

National Highway Traffic Safety Administration’s Auto Safety Hotline

at 1-888-dash-2-dot (1-888-327-4236).

ADDITIONAL INFORMATION:

The National Highway Traffic Safety Administration operates Monday

through Friday from 8:00 AM to 4:00 PM, Eastern Time. For more

information call (800) 424-9393 or (202) 366-0123. For the hearing

impaired, call (800) 424-9153.

G - TESTS W/CODES

1998 Mitsubishi Montero

1998 ENGINE PERFORMANCE

Mitsubishi - Self-Diagnostics

Montero & 3000GT

INTRODUCTION

* PLEASE READ THIS FIRST *

NOTE: If no faults were found while performing basic diagnostic

procedures in F - BASIC TESTING article, proceed with

self-diagnostics in this article. If no Diagnostic Trouble

Codes (DTCs) or only pass codes are present after entering

self-diagnostics, proceed to H - TESTS W/O CODES article for

diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).

SYSTEM DIAGNOSIS

NOTE: PCM diagnostic memory is retained by direct power supply

from battery. Memory is not erased by turning off ignition,

but it will be erased if battery or PCM is disconnected.

System diagnosis can be accomplished using a scan tool. See

ENTERING ON-BOARD DIAGNOSTICS. Powertrain Control Module (PCM)

monitors several different engine control system circuits. If an

abnormal input signal occurs, a Diagnostic Trouble Code (DTC) is

stored in PCM memory and assigned a DTC number. Each circuit has its

own DTC number and message. A specific DTC indicates a particular

system failure, but does not indicate that cause of failure is

necessarily within system.

A DTC does not condemn any specific component; it simply

points out a probable malfunctioning area. If a DTC is set, PCM will

turn on MIL. System failures encountered are identified as either hard

failures or intermittent failures as determined by PCM.

Hard Failures

Hard failures cause MIL to come on and remain on until

failure is repaired. If MIL comes on and remains on (MIL may flash)

during vehicle operation, cause of failure may be determined by using

appropriate DTC diagnostic procedure. See TROUBLE CODE DEFINITION. If

a sensor fails, PCM will use a substitute value in its calculations to

continue engine operation. In this condition (limp-in mode), vehicle

is functional, but loss of good driveability may result.

Intermittent Failures

Intermittent failures may cause MIL to flicker, or come on

and go out after intermittent DTC goes away. However, corresponding

DTC will be retained in PCM memory. If related DTC does not reoccur

within a certain time frame, related DTC will be erased from PCM

memory. Intermittent failures may be caused by a sensor, connector or

wiring problems. See INTERMITTENTS in H - TESTS W/O CODES article.

The PCM also records and stores engine operating conditions

when malfunction occurred. This information is referred to as freeze

frame data. If malfunction is an engine misfire, or fuel system rich

or fuel system lean condition, freeze frame data will be updated with

the most current information regarding these failures. Freeze frame

data recorded is:

* Fuel System Status

* Load Value (Displayed As Percent)

* Engine Coolant Temperature

* Short Term Fuel Trim (Displayed As Percent)

* Long Term Fuel Trim (Displayed As Percent)

* MAP Vacuum

* Engine RPM

* Vehicle Speed Sensor

* DTC During Data Recording

SELF-DIAGNOSTIC SYSTEM

SERVICE PRECAUTIONS

Before proceeding with diagnosis, following precautions must

be observed:

* Ensure vehicle has a fully charged battery and functional

charging system.

* Visually inspect connectors and circuit wiring being worked

on.

* DO NOT disconnect battery or PCM. This will erase any DTCs

stored in PCM.

* DO NOT cause short circuits when performing electrical tests.

This will set additional DTCs, making diagnosis of original

problem more difficult.

* DO NOT use a test light in place of a voltmeter.

* When checking for spark, ensure coil wire is NOT more than

1/4" from chassis ground. If coil wire is more than 1/4" from

chassis ground, damage to vehicle electronics and/or PCM may

result.

* DO NOT prolong testing of fuel injectors. Engine may

hydrostatically (liquid) lock.

* When a vehicle has multiple DTCs, always repair lowest number

DTC first.

VISUAL INSPECTION

Most driveability problems in the engine control system

result from faulty wiring, poor electrical connections or leaking air

and vacuum hose connections. To avoid unnecessary component testing,

perform a visual inspection before beginning self-diagnostic tests.

ENTERING ON-BOARD DIAGNOSTICS

NOTE: DO NOT skip any steps in self-diagnostic tests or incorrect

diagnosis may result. Ensure self-diagnostic test applies to

vehicle being tested.

DTCs may be retrieved by using a scan tool only. Proceed to

DTC retrieval method.

NOTE: Although other scan tools are available, Mitsubishi

recommends using Multi-Use Tester II (MUT II) scan tool.

Using Scan Tool

1) Refer to manufacturer’s operation manual for instructions

in use of scan tool. Before entering on-board diagnostics, see

SERVICE PRECAUTIONS. Locate Data Link Connector (DLC) under instrument

panel, near steering column.

2) Turn ignition switch to OFF position. Connect scan tool to

DLC. Turn ignition switch to ON position. Read and record scan tool

self-diagnostic output. Proceed to TROUBLE CODE DEFINITION.

TROUBLE CODE DEFINITION

When DTC is obtained, refer to appropriate DTC test

procedure.

DIAGNOSTIC TROUBLE CODES (DTCS)

NOTE: DTCs can only be retrieved by using a scan tool. Listed DTCs

are retrieved using a generic scan tool. MUT II scan tool

can be used, but it may not read all DTCs. DTCS listed are

not used on all vehicles.

DTC P0100

Volume Airflow (VAF) circuit failure. Possible causes are:

connector or harness, or faulty VAF sensor.

DTC P0105

Barometric (BARO) pressure circuit failure. Possible causes

are: connector or harness, or faulty BARO pressure sensor.

DTC P0105

Manifold Absolute Pressure (MAP) circuit failure. Possible

causes are: connector or harness, or faulty MAP sensor.

DTC P0110

Intake Air Temperature (IAT) circuit failure. Possible causes

are: connector or harness, or faulty VAF sensor.

DTC P0115

Engine Coolant Temperature (ECT) circuit failure. Possible

causes are: connector or harness, or faulty ECT sensor.

DTC P0120

Throttle Position (TP) circuit failure. Possible causes are:

connector or harness, or faulty TP sensor.

DTC P0125

Excessive time to enter closed loop fuel control. Possible

causes are: faulty front HO2S, HO2S connector or harness, or faulty

fuel injector.

DTC P0130

Front Heated Oxygen Sensor (HO2S) circuit failure. Possible

causes are: connector or harness, or faulty HO2S.

DTC P0135

Front Heated Oxygen Sensor (HO2S) heater circuit failure.

Possible causes are: connector or harness, or faulty HO2S.

DTC P0136

Rear Heated Oxygen Sensor (HO2S) circuit failure. Possible

causes are: connector or harness, or faulty HO2S.

DTC P0141

Rear Heated Oxygen Sensor (HO2S) heater circuit failure.

Possible causes are: connector or harness, or faulty HO2S.

DTC P0150

Heated Oxygen Sensor (HO2S) circuit failure (bank 2, sensor

1). Possible causes are: connector or harness, or HO2S.