Mitsubishi Montero (1998+). Manual - part 38

         Removal & Installation

         Disconnect WSS connector. Remove WSS bolts. Remove WSS from

vehicle. To install, reverse removal procedure. Sensors are not

interchangeable. Adjust wheel WSS-to-rotor gap. See WHEEL SPEED SENSOR

(WSS) under ADJUSTMENTS. To complete installation, reverse removal

procedure. Tighten WSS bolts to specification. See

TORQUE SPECIFICATIONS.

         WHEEL SENSOR ROTOR

         Removal & Installation

         Remove brake disc. Remove disc assembly. Remove wheel

bearings. Remove axle hub. Remove bolts attaching sensor rotor to hub

assembly. To install, reverse removal procedure.

         OVERHAUL

         HYDRAULIC UNIT

         DO NOT attempt to overhaul or disassemble hydraulic unit. If

hydraulic unit is defective, replace entire assembly.

         TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

Application                                            INCH Lbs. (N.m)

"G" Sensor Mounting Bolt  .................................   80 (9.0)

Wheel Speed Sensor (WSS) Bolt  ....................  84-120 (9.5-14.6)

         WIRING DIAGRAMS

Fig. 18:  Anti-Lock Brake System (ABS) Wiring Diagram (1997 Montero)

Fig. 19:  Anti-Lock Brake System (ABS) Wiring Diagram (1998 Montero)

AUTO TRANS DIAGNOSIS - R4AW3 & V4AW3 

1998 Mitsubishi Montero

         1997-98 AUTOMATIC TRANSMISSIONS

         Mitsubishi R4AW3 & V4AW3 Electronic Controls

         Montero, Montero Sport

         APPLICATION

TRANSMISSION APPLICATION

Vehicle                                             Transmission Model

Montero Sport 2WD  ............................................  R4AW3

Montero & Montero Sport 4WD  ..................................  V4AW3

CAUTION: Vehicle is equipped with Supplemental Restraint System (SRS).

         When servicing vehicle, use care to avoid accidental air bag

         deployment. SRS-related components are located in steering

         column, center console, instrument panel and lower panel on

         instrument panel. DO NOT use electrical test equipment on

         these circuits. If necessary, deactivate SRS before servicing

         components. See AIR BAG SERVICING article in APPLICATIONS &

         IDENTIFICATION.

         DESCRIPTION

         Automatic transmission is a 4-speed electronically controlled

transmission. Solenoids that control shift changes are located in

valve body. Solenoids are controlled by a Transmission Control Module

(TCM). TCM receives information from various input devices and uses

this information to control shift solenoids for transmission shifting

and lock-up solenoid for torque converter lock-up.

         An Overdrive (OD) switch is mounted on the shift lever. When

OD switch is depressed to ON position, transmission will shift into

4th gear when shift lever is in "D" position, and OD OFF light on

instrument panel will go off. When OD switch is released to OFF

position, transmission will shift into 3rd gear, and OD OFF light on

instrument panel will illuminate.

         A pattern select switch is located near shift lever on center

console. Pattern select switch contains a NORMAL and a HOLD operating

position. When pattern select switch is depressed (HOLD position) with

shift lever in Drive position, transmission starts in 2nd gear.

Upshifts and downshifts will occur at a higher vehicle speed than with

switch in NORMAL position. See MITSUBISHI R4AW3 & V4AW3 OVERHAUL

article. Indicator light on instrument panel indicates pattern select

switch is in HOLD position.

         Transmission is equipped with a shift lock and key interlock

system. Shift lock system prevents shift lever from being moved from

Park unless brake pedal is depressed. Key interlock system prevents

ignition key from being moved from ACC to LOCK position on ignition

switch unless shift lever is in Park. See MITSUBISHI SHIFT LOCK

SYSTEMS article.

         OPERATION

         TCM

         TCM receives information from various input devices and uses