WIPER/WASHER SYSTEM
1991 Mitsubishi Montero
1991 ACCESSORIES & SAFETY EQUIPMENT
Chrysler Motors/Mitsubishi Wiper/Washer Systems
Dodge; Ram-50
Mitsubishi: Montero, Pickup
DESCRIPTION & OPERATION
All models are equipped with a 2-speed wiper motor with an
optional intermittent wiper feature. Some models are equipped with a
rear wiper/washer.
ADJUSTMENTS
FRONT WIPER ARM ADJUSTMENT
Ensure wiper motor is in park position. Position wiper arm
and blade assembly so tip of blade is specified distance above front
window trim. See FRONT WIPER ADJUSTMENT SPECIFICATIONS table.
FRONT WIPER ADJUSTMENT SPECIFICATIONS TABLE
Model Driver Side: In. (mm) Passenger Side: In. (mm)
Montero ............ 1.5-1.9 (37-47) ............. 1.5-1.9 (37-47)
Pickup & Ram-50 ........ .6 (15) ........................ 1.0 (25)
REAR WIPER ARM ADJUSTMENT
NOTE: Pickup and Ram-50 are not equipped with rear wipers.
Ensure wiper motor is in park position. Position wiper arm
and blade assembly so tip of blade is specified distance from edge of
window. See REAR WIPER ADJUSTMENT SPECIFICATIONS table.
REAR WIPER ADJUSTMENT SPECIFICATIONS TABLE
Model In. (mm)
Montero ....................................... ( 2) *
(2) - Blade parallel with lower edge of window.
TESTING
FRONT WIPER MOTOR
Checking Wiper Motor Operation ( Montero, Pickup & Ram-50)
Disconnect wiring connector from wiper motor. Connect battery
voltage to appropriate wiper motor terminal, and ground other
terminal. See WIPER MOTOR OPERATION CHECK table. See Fig. 1. Ensure
wiper motor operates in both low and high speeds.
WIPER MOTOR OPERATION CHECK TABLE
Model & Ground Apply Voltage
Application Terminal No. To Terminal No.
Low Speed Operation
Montero ...................... 3 ............................. 1
Pickup & Ram-50 .............. 1 ............................. 3
High Speed Operation
Montero ...................... 4 ............................. 1
Pickup & Ram-50 .............. 2 ............................. 3
Fig. 1: Front Wiper Motor Terminal ID (Montero, Pickup & Ram-50)
Courtesy of Mitsubishi Motor Sales of America.
Checking Automatic Stop (Montero, Pickup & Ram-50)
1)Operate wiper motor at low speed. See CHECKING WIPER MOTOR
OPERATION. Disconnect battery voltage to stop motor in any position
except park.
2) Using a jumper wire, connect 2 terminals indicated. See
AUTOMATIC STOP CHECK table. See Fig. 1. Connect 12 volts to terminal
indicated in table, and ground wiper motor bracket. Ensure motor parks
wiper arm.
AUTOMATIC STOP CHECK TABLE
Model Jumper Pin Nos. Apply Voltage To Pin Nos.
Montero ................ 3 & 2 ................................. 1
Pickup & Ram-50 ........ 1 & 4 ................................. 3
FRONT WIPER RELAY
NOTE: On Pickup, Ram-50,intermittent wiper relay is incorporated
into wiper switch. See STEERING COLUMN SWITCHES article in
the ACCESSORIES/SAFETY EQUIP Section. Precis does not have a
front wiper relay.
Continuity Check (Montero)
Remove relay. Relay is located behind driver’s kick panel.
Make sure continuity is present between terminals No. 2 and 5. See
Fig. 2.
Fig. 2: Identifying Front Wiper Relay Terminals (Montero)
Courtesy of Mitsubishi Motor Sales of America.
Intermittent Operation Check (Montero)
1) Connect battery voltage to terminal No. 1 and ground
terminal No. 6. See Fig. 2. Connect a jumper wire with test light
between battery positive and terminal No. 2.
2) Connect one end of a jumper wire to terminal No. 3 and
touch the other end to negative terminal on battery. Test light should
illuminate briefly and then go out after terminal No. 3 is touched to
battery ground.
FRONT WIPER SWITCH
NOTE: Front wiper switch is located on steering column.
See STEERING COLUMN SWITCHES article in the
ACCESSORIES/SAFETY EQUIP Section.
REAR WIPER MOTOR
Operation Check (Montero)
Disconnect wiring connector from wiper motor. Connect battery
voltage to one terminal and ground to other terminal to ensure
automatic operation. See REAR WIPER MOTOR OPERATION CHECK table for
terminal numbers and model application. See Fig. 3.
REAR WIPER MOTOR OPERATION CHECK TABLE
Model Ground Pin No. Apply Voltage To Pin Nos.
Montero ................. 3 .................................... 1
Fig. 3: Identifying Rear Wiper Motor Terminals (Montero)
Courtesy of Mitsubishi Motor Sales of America.
Automatic Stop Check (Montero)
1) Start motor operation by connecting battery voltage to one
terminal and grounding another terminal. See
REAR WIPER MOTOR OPERATION CHECK table. See Fig. 3. Disconnect wires
during operation to stop motor in mid-sweep.
2) Jumper terminals No. 2 and 3 together. Connect battery
voltage to remaining terminal and ground wiper motor bracket. Ensure
motor parks wiper arm.
REAR WIPER RELAY
Operation Check (Montero)
Relay is located to right of heater blower assembly. Leave
intermittent relay connected to wiring harness. Operate rear wiper and
check voltage at terminal No. 1. See Fig. 4. There should be 12 volts
when rear wiper stops. Zero volts should be present when rear wiper is
operating.
Fig. 4: Identifying Rear Wiper Relay Terminals
Courtesy of Mitsubishi Motor Sales of America.
REAR WIPER SWITCH
Montero
Remove wiper switch from instrument panel and disconnect
wiring connector. Place wiper switch in OFF position. Continuity
should exist between terminals No. 2 and 5. See Fig. 5. Place wiper
switch in ON position. Continuity should exist between terminals No. 2
and 7. Place wiper switch in INT position. Continuity should exist
between terminals No. 2 and 5, and 3 and 8. Depress washer switch.
Continuity should exist between terminals No. 6 and 7.
Fig. 5: Identifying Rear Wiper Switch Terminals
Courtesy of Mitsubishi Motor Sales of America.
REMOVAL & INSTALLATION
FRONT WIPER MOTOR
Removal & Installation
Remove wiper motor attaching bolts. Pull motor out just
slightly. Disconnect wiper linkage from motor assembly and remove
motor. To install, reverse removal procedure.
FRONT WIPER SWITCH
NOTE: Front wiper switch is integral with combination switch on
steering column. See appropriate STEERING COLUMN SWITCHES
article in the ACCESSORIES/SAFETY EQUIP Section.
REAR WIPER MOTOR
Removal & Installation
Remove wiper blade and arm assembly. Remove tailgate trim, 2
bolts and wiper motor. To install, reverse removal procedure. Ensure
grommet is in good condition.
REAR WIPER RELAY
Removal & Installation
Rear wiper relay (Except Montero), is located behind right
rear quarter trim. On Montero, relay is located to right of heater
blower housing.
REAR WIPER SWITCH
Removal & Installation
Using flat-bladed tool, pry rear wiper switch from instrument
panel and remove wiring connector. To install, connect wiring
connector, and push switch into instrument panel.
WIRING DIAGRAMS
See appropriate chassis wiring diagram in the WIRING DIAGRAMS
section.
