wiper blades DODGE TOWN AND COUNTRY 2001 Service Manual

WIPERS/WASHERS
TABLE OF CONTENTS
page page
WIPERS/WASHERS
DESCRIPTION............................1
OPERATION.............................1
DIAGNOSIS AND TESTING..................2
FRONT WIPER SYSTEM..................2
REAR WIPER SYSTEM...................2
FRONT WIPER/WASHER SWITCH...........2
FAILED PARK SWITCH...................2
FRONT WIPER ARMS
REMOVAL...............................4
INSTALLATION............................4
ADJUSTMENTS...........................4
FRONT WIPER MOTOR
REMOVAL...............................5
INSTALLATION............................5
FRONT WIPER UNIT
REMOVAL...............................5
INSTALLATION............................6
REAR WIPER ARM
REMOVAL...............................6
INSTALLATION............................7
REAR WIPER MOTOR
REMOVAL...............................7INSTALLATION............................7
REAR WIPER/WASHER SWITCH
DESCRIPTION............................7
OPERATION.............................7
WASHER HOSES
REMOVAL...............................7
INSTALLATION............................8
WASHER RESERVOIR
REMOVAL...............................8
INSTALLATION............................8
WIPER BLADES
REMOVAL...............................9
CLEANING...............................9
INSTALLATION............................9
WIPER BLADE ELEMENTS
REMOVAL...............................9
INSTALLATION...........................10
WIPER LINKAGE
REMOVAL..............................10
INSTALLATION...........................10
WIPERS/WASHERS
DESCRIPTION
FRONT WIPER/WASHER SYSTEM
The windshield wipers can be operated with the
windshield wiper switch when the ignition switch is
in the RUN or ACCESSORY positions. The wind-
shield wiper system is protected by a 30 amp fuse (9)
located in the Power Distribution Center (PDC) part
of the Integrated Power Module (IPM) in the engine
compartment. The wiper/washer switch is integral to
the multi-function switch. It is a resistive MUX
switch that sends inputs to the BCM to operate the
wiper/washer system.
REAR WIPER/WASHER SYSTEM
The rear windshield wiper and washers can be
operated when the ignition switch is in the RUN or
ACCESSORY positions.
OPERATION
FRONT WIPER/WASHER SYSTEM
The windshield washer circuit is protected by a 9
amp PTC located in the Junction Block. The wiper
motor has permanent magnetic fields. The speeds are
determined by current flow to the appropriate set of
brushes inside the motor. The current flow is con-
trolled by the multi-function switch stalk mounted
wiper switch, high speed/low speed relays located in
the Power Distribution Center (PDC) part of the
Integrated Power Module (IPM) in the engine com-
partment. The speed sensitive intermittent wiper is
controlled by the Body Control Module (BCM). The
intermittent mode, with the vehicle traveling greater
than 10.4 mph, has a range of 0.5 to 18 seconds.
With the vehicle traveling less than 10.4 mph, and
the time delay is not adjusted, time delay doubles to
a range of 1 to 36 seconds. The wiper arms will park
at the base of the windshield just above the cowl
cover after the wiper switch is turned OFF.
RSWIPERS/WASHERS8R-1
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²LOW SPEED- Wipers operate at low speed.
²HIGH SPEED- Wipers operate at high speed.
²PULSE WIPE- Wipers will not operate.
²WIPE AFTER WASH- Wipers operate at low
speed in any mode setting. Wipers operate only whilewash button is depressed with switch in OFF mode,
wipers stop in mid-cycle when button is released.
The windshield wiper park switch and circuit is
monitored by the BCM. The park switch and circuit
can be tested using the table.
WIPER SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
WIPER BLADES DO NOT
PARK PROPERLY1. WIPER ARMS IMPROPERLY
PARKED.
2. WIPER ARMS ARE LOOSE ON
PIVOT SHAFT.
3. MOTOR CRANK LOOSE AT
OUTPUT SHAFT.1. REMOVE WIPER ARMS AND REPARK.
REFER TO WIPER ARM REMOVAL AND
INSTALLATION.
2. REMOVE WIPER ARM AND REPARK.
REFER TO WIPER ARM REMOVAL AND
INSTALLATION.
3. REMOVE WIPER ARM, RUN WIPER
MOTOR TO PARK POSITION AND
REMOVE THE MODULE. WITHOUT
ROTATING THE MOTOR OUTPUT SHAFT,
REMOVE THE CRANK AND CLEAN ANY
FOREIGN MATTER FROM THE MOTOR
SHAFT. INSTALL THE MOTOR CRANK IN
ITS ORIGINAL POSITION.
MOTOR STOPS IN ANY
POSITION WHEN THE
SWITCH IS TURNED OFF1. OPEN PARK CIRCUIT. 1. CHECK PARK SWITCH BY
DISCONNECTING THE WIRE
CONNECTOR AND APPLY BATTERY
VOLTAGE TO PIN 4. PLACE A JUMPER
WIRE FROM PIN 2 TO PIN 3 AND THEN
TO AN EXTERNAL GROUND. REPLACE
MOTOR IF IT DOES NOT PARK.
MOTOR WILL NOT STOP
WHEN THE SWITCH IS
TURNED OFF1. FAULTY SWITCH.
2. LACK OF DYNAMIC BRAKE ON
WET GLASS.1. CHECK SWITCH IN LOW, HIGH AND
INTERMITTENT POSITION.
2. ENSURE PARK SWITCH HAS CLEAN
GROUND.
WIPER BLADES SLAP
AGAINST COWL SCREEN
OR WINDOW MOLDINGS.1. WIPER ARMS ARE PARKED
INCORRECTLY.1. PARK WIPER ARMS. REFER TO
WIPER ARM ADJUSTMENT.
BLADES CHATTER 1. FOREIGN SUBSTANCE SUCH
AS POLISH ON GLASS OR
BLADES.
2. ARMS TWISTED, BLADE AT
WRONG ANGLE ON GLASS.
3. BLADE STRUCTURE BENT.
4. BLADE ELEMENT HAS
PERMANENT SET.1. CLEAN GLASS AND BLADE ELEMENT
WITH NON-ABRASIVE CLEANER.
2. REPLACE ARM.
3. REPLACE BLADE.
4. REPLACE BLADE ELEMENT.
WIPER KNOCK AT
REVERSAL1. LINKAGE BUSHINGS WORN.
2. ARMATURE ENDPLAY IN
MOTOR.1. REPLACE WORN LINK. REFER TO
WIPER LINKAGE REMOVAL AND
INSTALLATION.
2. REPLACE WIPER MOTOR. REFER TO
WIPER MOTOR REMOVAL AND
INSTALLATION.
RSWIPERS/WASHERS8R-3
WIPERS/WASHERS (Continued)
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CONDITION POSSIBLE CAUSES CORRECTION
WIPER MOTOR WILL NOT
RUN1. BLOWN FUSE.
2. NEW FUSE BLOWS.
3. NEW FUSE BLOWS.
4. NO VOLTAGE AT MOTOR.
5. POOR GROUND.1. REPLACE FUSE, AND RUN SYSTEM.
2. CHECK FOR SHORT IN WIRING OR
SWITCH.
3. REPLACE FUSE, REMOVE MOTOR
CONNECTOR, TURN SWITCH ON, FUSE
DOES NOT BLOW, REPLACE MOTOR.
4. CHECK SWITCH AND WIRING
HARNESS. REFER TO WIRING
DIAGRAMS.
5. REPAIR GROUND WIRE CONNECTION
AS NECESSARY.
FRONT WIPER ARMS
REMOVAL
CAUTION: The driver side wiper arm must be
parked above the passenger side. Failure to do so
will result in damage to the arms, blades or system.
(1) Disengage the clip holding outside end of the
wiper arm pivot cover to the wiper arm.
(2) Lift the arm cap upward.
(3) Remove the nut holding wiper arm to the wiper
pivot.
(4) Using a suitable two jaw puller, separate the
wiper arm from the wiper pivot (Fig. 2).
INSTALLATION
(1) Verify that the wiper motor and linkage are in
the park position.
(2) Place the wiper arm in position over the wiper
pivot (Fig. 3).
(3) Install the nut to hold the wiper arm to the
wiper pivot. Tighten nut to 35 N´m (26 ft. lbs.).
(4) Push the arm cap cover down.
(5) Engage clip to the hold outside end of wiper
arm pivot cover to the wiper arm.
ADJUSTMENTS - WIPER ARM ALIGNMENT
(1) Verify wiper blade element condition and wiper
arm spring tension. Run wipers in low speed mode
while applying water to the windshield. Observe the
wiper blade that is chattering or skipping across the
windshield. If the wiper element is not rolling over
when the wiper direction reverses, align the wiper
arm. The extension bar portion of the wiper arm
Fig. 2 WIPER ARM REMOVAL
1 - WASHER NOZZLE
2 - HOOD
3 - COWL COVER
4 - WINDSHIELD
5 - TWO JAW PULLER
6 - ARM CAP
7 - WINDSHIELD WIPER ARM
Fig. 3 WIPER ARM ADJUSTMENT
1 - WIPER BLADES
2 - WINDSHIELD
3 - WASHER NOZZLES
4 - WIPER ARMS
8R - 4 WIPERS/WASHERSRS
WIPERS/WASHERS (Continued)
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(11) Lift wiper unit from weld-studs on lower
windshield fence.
CAUTION: Do not allow wiper unit to rest on brake
master cylinder reservoir, damage to brake system
can result.
(12) Remove wiper unit.
INSTALLATION
(1) Position the wiper unit into the cowl.
(2) Install the nuts that retain the wiper unit.
(3) Install the bolts that secure the wiper unit to
the dash (Fig. 7).
(4) Connect the drain tubes to the nipples on the
wiper unit.
(5) Connect the windshield washer tube.
(6) Connect the wire harness connector to the
wiper unit (Fig. 7).
(7) Disconnect the positive lock on the wiper unit
wire connector (Fig. 6).
CAUTION: Do not allow wiper unit to rest on brake
master cylinder reservoir, damage to brake system
can result.
(8) Close the hood.
(9) Install the cowl cover (Refer to 23 - BODY/EX-
TERIOR/COWL GRILLE - INSTALLATION).
(10) Install the wiper arms and blades.
(11) Connect the battery negative cable.
REAR WIPER ARM
REMOVAL
(1) Lift and hold wiper blade away from rear win-
dow.
(2) Lift lock holding wiper arm to wiper pivot
upward.
(3) Allow wiper arm to rest against lock.
(4) Pull wiper from pivot (Fig. 8).
Fig. 6 WIPER UNIT WIRE CONNECTOR
1 - WIPER SYSTEM WIRE CONNECTOR
2 - LOCK TAB
3 - POSITIVE LOCK
4 - WIPER UNIT
Fig. 7 WIPER UNIT
1 - BOLT
2 - NUTS
3 - BOLT
4 - WIPER UNIT
5 - WINDSHIELD
Fig. 8 REAR WIPER ARM
1 - LOCK
2 - WIPER BLADE
3 - REAR WIPER ARM
8R - 6 WIPERS/WASHERSRS
FRONT WIPER UNIT (Continued)
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WIPER BLADES
REMOVAL
(1) Lift the wiper arm away from the glass.
(2) Disengage the release tab holding the wiper
blade to the wiper arm and remove the wiper blade
from the wiper arm (Fig. 14) and (Fig. 15).
CLEANING
Wiper blades exposed to the weather for a long
period of time tend to lose their wiping effectiveness.
Periodic cleaning of the wiper blade is recommended
to remove the accumulation of salt and road grime.
The wiper blades, arms and windshield should be
cleaned with a sponge or cloth and a mild detergent
or nonabrasive cleaner. If the wiper blades continue
to streak or smear, they should be replaced. Thewiper blade should run smoothly across the wind-
shield in both directions. The wiper blade should
slightly roll over center when the blade reverses
direction. A wiper blade insert that has lost flexibility
or a wiper arm that has lost spring tension, will
cause the blade to skip or chatter across the wind-
shield. If the wiper blades are new and the wiper
arm spring tension is OK and a chattering sound is
emitted from the wiper(s), the wiper blade is not roll-
ing over center. If this condition exists, (refer to 8 -
ELECTRICAL/WIPERS/WASHERS/WIPER ARMS -
ADJUSTMENTS).
INSTALLATION
(1) Position the blade onto the arm.
(2) Engage the blade to the retainer by pulling up
on the blade until the tabs snap into position (Fig.
14).
WIPER BLADE ELEMENTS
REMOVAL
(1) Disengage the release tab holding the wiper
blade to the wiper arm and remove the wiper blade
from the wiper arm (Fig. 14).
(2) Disengage clip holding the wiper element to
wiper blade (Fig. 16).
(3) Pull the element from the claws on the wiper
blade.
Fig. 14 WINDSHIELD WIPER BLADE
1 - RELEASE TAB
Fig. 15 REAR WIPER
1 - WIPER ARM
2 - BLADE LATCH
Fig. 16 WIPER BLADE ELEMENT
1 - CLAW
2 - TO GRASP AND PULL
3 - CHANNEL
4 - RUBBER ELEMENT
5 - VERTABRA
RSWIPERS/WASHERS8R-9
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INSTALLATION
(1) Insert the element vertebra (Fig. 16) into claw
at the open end of the wiper blade and through each
claw location along the blade.
(2) Engage clip to hold wiper element to wiper
blade.
(3) Test wiper effectiveness using washer mode
and align if necessary.
WIPER LINKAGE
REMOVAL
(1) Remove the windshield wiper unit from vehicle.
(Refer to 8 - ELECTRICAL/WIPERS/WASHERS/
WIPER MODULE - REMOVAL).
(2) Place the wiper unit on a suitable work sur-
face.
(3) Remove nuts holding the cowl cover brackets to
the wiper unit.
(4) Remove cowl cover brackets from the wiper
unit.
(5) Remove nuts holding linkage and motor mount
plate to the wiper unit (Fig. 17).
(6) Remove the wiper linkage from the wiper unit.
(7) Disconnect the wire connectors from back of
the wiper motor (Fig. 18).
INSTALLATION
(1) Connect the wire harness connector (Fig. 18).
(2) Install the linkage on the wiper unit (Fig. 17).
(3) Install the nut holding the linkage and mount
plate to the wiper unit.
(4) Install the cowl cover brackets to the wiper
nut.
(5) Install the cowl cover.
(6) Install the wiper arms and blades.
Fig. 18 WIPER MOTOR CONNECTOR
1 - WIPER MOTOR
2 - WIPER UNIT
3 - WIRE CONNECTORS
Fig. 17 WIPER LINKAGE
1 - MOTOR MOUNT PLATE
2 - WIPER LINKAGE
3 - WIPER UNIT
8R - 10 WIPERS/WASHERSRS
WIPER BLADE ELEMENTS (Continued)
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