Chrysler Town & Country/Voyager, Dodge Caravan, Plymouth Voyager. Manual — part 221
(b) If there is no continuity, the problem is an open
circuit in the wiper control switch or wiring harness.
WIPER MOTOR REPLACEMENT
(1) Remove windshield wiper arms (Fig. 5).
(2) Open hood assembly.
(3) Remove cowl top plenum grille.
(4) Remove hoses from hose connectors.
(5) Remove cowl plenum chamber plastic screen.
(6) Remove wiper pivot retaining screws.
(7) Push pivots down into plenum chamber.
(8) Remove nut from wiper motor output shaft and
remove linkage assembly.
(9) Disconnect wiper motor wiring harness.
(10) Remove mounting screw and nuts from wiper
motor.
(11) Remove wiper motor.
(12) Perform disassembly and service on pieces as
necessary.
(13) For installation reverse above procedures. Ex-
cept the following torque specifications:
(a) Tighten motor mounting screw and nuts 7 to 8
N
Im (60 to 70 in. lbs.) torque.
(b) Tighten pivot screws 7 to 8 N
Im (60 to 70 in.
lbs.) torque.
(c) Position wiper motor drive crank on motor
shaft and tighten retaining nut 10 to 11 N
Im (90 to
100 in.lbs.) torque.
(d) Refer to Wiper Arm Adjustment for proper
alignment.
INTERMITTENT WINDSHIELD WIPER MOTOR AND SWITCH
INDEX
page
page
Intermittent Function Tests
. . . . . . . . . . . . . . . . . . . 8
Intermittent Windshield Wiper Switch
. . . . . . . . . . . 8
Intermittent Wiper Motor Test
. . . . . . . . . . . . . . . . . 7
INTERMITTENT WIPER MOTOR TEST
Intermittent Wiper Motor Service Procedures for
diagnosis of problems which, do not involve the delay
function, refer to the Motor Tests. The two-speed func-
tions of all wiper motors are identical.
If a problem occurs, only in the DELAY mode, the
following tests are to be performed.
CONDITION: EXCESSIVE DELAY OF MORE
THAN 30 SECONDS OR INADEQUATE VARIA-
TION IN DELAY
REPAIR
Variations in delay should be as follows:
(1) Minimum delay control to extreme counterclock-
wise position before first detent of one half to two
seconds.
(2) Maximum delay control to extreme clockwise
position before off detent of ten to thirty seconds.
(3) If there is excessive delay or no variations in
delay go to intermittent wipe switch test.
CONDITION: IN DELAY MODE WIPERS RUN
CONTINUALLY WHEN WASH IS OPERATED
BUT DO NOT PROVIDE AN EXTRA WIPE
WHEN THE WASH CONTROL IS RELEASED
REPAIR
Replace the body controller.
CONDITION: WIPERS START ERRATICALLY DURING DELAY
MODE
REPAIR
(1) Verify that the ground connection at the instru-
ment panel is making good connection, free from paint
and is tight.
(2) Verify that the motor ground strap is making
good contact and that the motor mounting bolts are
tight.
(3) Verify that the wiring ground connections for the
intermittent wipe control unit and the wiper switch are
tight.
(4) If condition is not corrected, replace body control-
ler.
Fig. 12 Ohmmeter Between Terminals 3 and 1
.
WINDSHIELD WIPER AND WASHER SYSTEMS
8K - 7
INTERMITTENT WINDSHIELD WIPER SWITCH
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAG, SEE GROUP 8M, RESTRAINT SYSTEMS FOR
STEERING WHEEL OR COLUMN REMOVAL PROCE-
DURES.
The intermittent wipe function is controlled by the
body controller, located at the lower right side of
steering column. If the body controller is determined to
be the problem, refer to Group 8E, Instrument Panels
and Gauges, for replacement procedures.
To test the intermittent wipe functions a DRB II will
be needed, and the Body Diagnostic Procedures
Manual.
The DRB II is used to monitor the intermittent wipe
input, washer input and the dwell switch input.
To test the switch, first disconnect the switch wires
from the body wiring in the steering column. Using an
ohmmeter, test for continuity between the terminals of
the switch, as indicated in the following continuity
chart. The identity of each terminal is shown in Fig. 13.
For test purposes, the first position is the OFF
position, next is the slide for the DELAY wipe. LOW is
the next detent position and HIGH is the full counter-
clockwise detent position.
In any wiper mode, if the knob is pushed all the way
in, the washer circuit will be completed.
The wiper switch is part of the multi-function switch
assembly. If the wiper switch fails, the multi-function
switch must be replaced. Refer to Group 8J, Turn
Signals and Hazard Warning Flasher for multi-
function switch service procedure.
INTERMITTENT FUNCTION TESTS
CONDITION: EXCESSIVE DELAY, MORE THAN
30 SECONDS OR INADEQUATE VARIATION IN
DELAY
REPAIR
Variations in delay should be as follows:
(1) Minimum delay control to extreme counterclock-
wise position before first detent of one half to two
seconds.
(2) Maximum delay control to extreme clockwise
position before off detent of ten to thirty seconds.
(3) If there is excessive delay or no variations in
delay go to intermittent wipe switch test.
(4) If not within specifications, replace body control-
ler.
CONDITION: IN DELAY MODE WIPERS RUN
CONTINUALLY WHEN WASH IS OPERATED
BUT DO NOT PROVIDE AN EXTRA WIPE
WHEN THE WASH CONTROL IS RELEASED
REPAIR
Replace the body controller.
CONDITION: WIPERS START ERRATICALLY
DURING DELAY MODE
REPAIR
(1) Verify that the ground connection at the instru-
ment panel is making good connection, free from paint
and is tight.
(2) Verify that the motor ground strap is making
good contact and that the motor mounting bolts are
tight.
(3) Verify that the wiring ground connections for the
intermittent wipe control unit and the wiper switch are
tight.
(4) If condition is not correct, replace body controller.
Fig. 13 Multi-Function Switch Connector and Inter-
mittent Wipe Continuity
8K - 8
WINDSHIELD WIPER AND WASHER SYSTEMS
.
WINDSHIELD WASHERS
INDEX
page
page
General Information
. . . . . . . . . . . . . . . . . . . . . . . . 9
Washer Nozzle
. . . . . . . . . . . . . . . . . . . . . . . . . . 10
Washer Reservoir Pump Replacement
. . . . . . . . . . 9
Washer Reservoir Removal
. . . . . . . . . . . . . . . . . . 9
GENERAL INFORMATION
All models are equipped with electric operated wind-
shield washer pumps.
The wash function can be accessed in the OFF
position of the wiper control switch. Holding the wash
button depressed when the switch is in the OFF
position will operate the wipers and washer motor
pump continuously until the washer button is released.
Releasing the button will stop the washer pump. The
wipers will complete the current wipe cycle followed by
an average of two more wipe cycles (
61) before the
wipers park and the module turns off.
Whenever a windshield washer malfunction occurs,
verify that the windshield washer wire harness is
properly connected before starting normal diagnosis
and repair procedures. Refer to Windshield Washer
Diagnosis Chart (Fig. 14).
WASHER RESERVOIR REMOVAL
(1) Unlock and open the hood.
(2) Remove screws attaching the reservoir in ple-
num.
(3) Disconnect the wiring harness from the reservoir
pump and sensor, if equipped.
(4) Disconnect the washer hose and block the liquid
outlet to prevent the liquid from running out while
removing the reservoir from engine compartment.
(5) For
installation
reverse
above
procedures.
Tighten attaching screws to 3 N
Im (26 in. lbs.) torque.
WASHER RESERVOIR PUMP REPLACEMENT
(1) Remove washer reservoir and pump assembly,
refer to Reservoir Removal.
(2) Notice position of pump, then using a 19mm (3/4
in.) socket through the liquid filler opening, loosen the
pump filter and nut.
(3) Disconnect the outside portion of the pump.
Fig. 14 Windshield Washer Diagnosis
.
WINDSHIELD WIPER AND WASHER SYSTEMS
8K - 9
(4) Remove inner and outer portions of the pump.
(5) For installation reverse above procedures.
(a) Install rubber grommet into place in bottom of
reservoir.
(b) Refer to Washer Reservoir Removal for instal-
lation of reservoir.
WASHER NOZZLE
These models are equipped with two washer nozzles
attached to the wiper arms. Each arm emits five
streams across the wiper pattern. No adjustment is
required. If nozzle performance is unsatisfactory they
should be replaced. The right and left nozzles are
identical.
To replace unsnap nozzle from wiper arm and discon-
nect hose. When installing make sure that both the
nozzle and the hose guard are securely snapped into
position.
REAR WINDOW WIPER/WASHER SYSTEM
INDEX
page
page
Liftgate Motor Replacement
. . . . . . . . . . . . . . . . . 12
Liftgate Washer Reservoir Pump Replacement
. . . 13
Liftgate Washer Reservoir Removal
. . . . . . . . . . . 12
Liftgate Wiper Motor Test
. . . . . . . . . . . . . . . . . . . 11
Module Test
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Rear Arm Adjustment
. . . . . . . . . . . . . . . . . . . . . . 10
Rear Window Intermittent Wipe Module Location
. . 10
Rear Wiper/Washer Control Pod Switch
. . . . . . . . 11
Rear Wiper/Washer Control Pod Switch
Replacement
. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Washer Nozzle
. . . . . . . . . . . . . . . . . . . . . . . . . . 13
For wiper blade service, refer to windshield Wiper
Blades.
REAR ARM ADJUSTMENT
(1) With the motor in park position, mount the arm
on the motor shaft. Choose a serration engagement
that properly locates tip of the blade about 90 mm (3
1/2 inch) parallel, with lower edge of liftgate glass (Fig.
15).
(2) Operate the wiper on dry glass with the engine
off. The tip of the wiper blade should be within 60 mm
(2 3/8 inch) to 120 mm (4 3/4 inch) above lower edge of
liftgate glass.
REAR WINDOW INTERMITTENT WIPE MODULE
LOCATION
The intermittent wipe module is located inside the
lift gate on the right van side (Fig. 16).
Fig. 15 Installing Liftgate Wiper Arm
Fig. 16 Intermittent Wipe Module Location
8K - 10
WINDSHIELD WIPER AND WASHER SYSTEMS
.
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