WINDSHIELD WIPER BLADE ELEMENT
REMOVAL
(1) Disengage the release tab holding the wiper
blade to the wiper arm and remove the wiper blade
from the wiper arm (Fig. 6).
(2) Disengage clip holding the wiper element to
wiper blade (Fig. 7).
(3) Pull the element from the claws on the wiper
blade.
INSTALLATION
(1) Insert the element vertebra (Fig. 8) 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.
WINDSHIELD WIPER MOTOR
REMOVAL
(1) Remove wiper unit from vehicle.
(2) Remove wiper linkage and motor mount plate
from wiper unit.
(3) Disconnect wire connectors from back of wiper
motor (Fig. 16).
(4) Remove wiper linkage from motor crank. Do
NOT remove crank from motor.(5) Remove bolts holding wiper motor to mount
plate and remove motor (Fig. 9) and (Fig. 10).
INSTALLATION
(1) Place wiper unit on a suitable work surface.
(2) Place wiper motor in position on mount plate.
(3) Install bolts to hold wiper motor to mount
plate.
(4) Install wiper linkage and motor mount plate
into wiper unit.
(5) Connect wire connectors to wiper motor (Fig.
16).
(6) Place the wiper unit into engine compartment
and connect wiper unit wire connector to engine wire
harness (Fig. 13).
(7) Operate wiper motor and verify that the wiper
motor parks when wiper switch is turned OFF.
Fig. 7 Windshield Wiper Blade Element
Fig. 8 Wiper Blade and Element
Fig. 9 Wiper Motor Crank
Fig. 10 Wiper Motor
8K - 6 WINDSHIELD WIPERS AND WASHERSNS
REMOVAL AND INSTALLATION (Continued)
WIPER ARM
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.
REMOVAL
(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. 11).
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. 12). Refer to Alignment.
(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.
WIPER UNIT
REMOVAL
(1) Remove the wiper arms.
(2) Remove the cowl cover. Refer to Group 23 Body
for proper procedure.
(3) Release the hood latch and open hood.
(4) Disconnect the positive lock on the wiper unit
wire connector (Fig. 13).
(5) Disconnect the wiper unit wire connector from
the engine compartment wire harness.
(6) Disconnect the windshield washer hose from
coupling inside unit.(7) Disconnect the drain tubes from nipples on bot-
tom of the wiper unit.
(8) Remove nuts holding wiper unit to lower wind-
shield fence.
(9) Remove bolts holding the wiper unit to the
dash panel (Fig. 14).
(10) 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.
(11) Remove wiper unit.
INSTALLATION
For installation, reverse the above procedure.
WIPER LINKAGE
REMOVAL
(1) Remove the windshield wiper unit from vehicle.
Fig. 11 Wiper Arm Removal
Fig. 12 Wiper Arm Adjustment
Fig. 13 Wiper Unit Wire Connector
NSWINDSHIELD WIPERS AND WASHERS 8K - 7
REMOVAL AND INSTALLATION (Continued)
(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. 15).
(6) Remove the wiper linkage from the wiper unit.
(7) Disconnect the wire connectors from back of
the wiper motor (Fig. 16).
INSTALLATION
For installation, reverse the above procedure.
CLEANING AND INSPECTION
WIPER BLADES
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. The
wiper 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 the
Wiper Arm Alignment paragraph of this group.
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 must be
twisted in the proper direction to allow the wiper ele-
ment to roll over when the direction reverses.
(2) Place two small adjustable wrenches placed 50
mm (2 in.) apart on the wiper arm extension rod.
(3) Twist the extension rod slightly in the opposite
direction that the element is laying on the wind-
shield while holding the wrench closest to the pivot
stationary.
(4) Repeat step Step 1, and align as necessary
until wiper stops chattering and wipes the wind-
shield clear.
Fig. 14 Wiper Unit
Fig. 15 Wiper Linkage
Fig. 16 Wiper Motor Connector
8K - 8 WINDSHIELD WIPERS AND WASHERSNS
REMOVAL AND INSTALLATION (Continued)
REAR WIPER AND WASHER
INDEX
page page
DESCRIPTION AND OPERATION
INTRODUCTION......................... 9
REAR WINDOW WIPER/WASHER SWITCHES . . . 9
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES................ 9
REMOVAL AND INSTALLATION
REAR GLASS RUBBER GROMMET........... 9REAR WINDOW WIPER MOTOR............ 10
REAR WIPER ARM...................... 10
REAR WIPER BLADE ELEMENT............ 10
REAR WIPER BLADE..................... 10
DESCRIPTION AND OPERATION
INTRODUCTION
When continuous rear wiper operation is required,
the Body Control Module (BCM) will provide ignition
ON voltage to the rear wiper motor. When the wiper
switch is turned OFF, the BCM provides circuit
ground to operate the motor until the wipe cycle is
complete and the wiper arm returns to the base of
the rear window.
When intermittent rear wiper mode is selected, the
wiper motor will cycle every 7 seconds. The intermit-
tent delay time is also adjusted based upon vehicle
speed. With the vehicle traveling greater at 50 mph,
the cycle changes to every 5 seconds.
REAR WINDOW WIPER/WASHER SWITCHES
The rear window wiper/washer switches are incor-
porated into the HVAC switch panel. Refer to Group
8E, Instrument Panel for proper service procedures.
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES
The rear window wiper system operates in several
modes:
²Continuous wipe
²Intermittent wipe
²Wash
²Wipe after wash
The windshield wiper circuits are continuously
monitored and controlled by the Body Control Mod-
ule (BCM). If a problem occurs in the electronic com-
ponents, wiring, switch (except integral motor park
switch) and wiper motor a Diagnostic Trouble Code
(DTC) will be stored in the BCM memory. The
DTC(s) can be retrieved using a scan tool (DRB).
Refer to proper Body Diagnostic Procedures manual
for DTC descriptions and retrieval information.
REMOVAL AND INSTALLATION
REAR GLASS RUBBER GROMMET
REMOVAL
(1) Remove rear window wiper motor.
(2) Peel wiper pivot seal grommet from rear glass.
(3) Remove grommets from vehicle (Fig. 1).
INSTALLATION
For installation, reverse the above procedure.
Fig. 1 Rear Glass Rubber Grommet
Fig. 2 Rear Glass Rubber Grommets
NSWINDSHIELD WIPERS AND WASHERS 8K - 9
REAR WINDOW WIPER MOTOR
REMOVAL
(1) Remove rear wiper arm.
(2) Open liftgate.
(3) Remove liftgate trim panel.
(4) Disconnect wire connector from rear wiper
motor.
(5) Remove screws holding rear wiper motor to lift-
gate (Fig. 3).
(6) Remove wiper motor from liftgate.
INSTALLATION
For installation, reverse the above procedure.
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. 4).
INSTALLATION
For installation, reverse the above procedure.
REAR WIPER BLADE
REMOVAL
(1) Lift wiper blade away from rear window.
(2) Release latch holding blade to wiper arm (Fig.
5).
(3) Remove blade from wiper arm.
INSTALLATION
For installation, reverse the above procedure.
REAR WIPER BLADE ELEMENT
Refer to Windshield Wiper Blade Element in this
section.
Fig. 3 Rear Window Wiper Motor
Fig. 4 Rear Wiper Arm
Fig. 5 Rear Wiper Arm
8K - 10 WINDSHIELD WIPERS AND WASHERSNS
REMOVAL AND INSTALLATION (Continued)
WIRING DIAGRAMS
CONTENTS
page page
AIR CONDITIONING-HEATER.......... 8W-42-1
AIRBAG SYSTEM................... 8W-43-1
ANTI-LOCK BRAKES................. 8W-35-1
AUDIO SYSTEM.................... 8W-47-1
BODY CONTROL MODULE............ 8W-45-1
CHARGING SYSTEM................. 8W-20-1
COMPONENT INDEX................. 8W-02-1
CONNECTOR/GROUND LOCATIONS..... 8W-90-1
CONNECTOR PIN-OUTS.............. 8W-80-1
FRONT LIGHTING................... 8W-50-1
FUEL/IGNITION SYSTEM............. 8W-30-1
GENERAL INFORMATION............. 8W-01-1
GROUND DISTRIBUTION............. 8W-15-1
HORN/CIGAR LIGHTER/POWER OUTLET . 8W-41-1
INSTRUMENT CLUSTER.............. 8W-40-1
INTERIOR LIGHTING................. 8W-44-1
JUNCTION BLOCK................... 8W-12-1
MESSAGE CENTER.................. 8W-46-1OVERHEAD CONSOLE................ 8W-49-1
POWER DISTRIBUTION.............. 8W-10-1
POWER DOOR LOCKS............... 8W-61-1
POWER MIRRORS.................. 8W-62-1
POWER SEAT...................... 8W-63-1
POWER WINDOWS.................. 8W-60-1
REAR LIGHTING.................... 8W-51-1
SPLICE INFORMATION............... 8W-70-1
SPLICE LOCATIONS................. 8W-95-1
STARTING SYSTEM................. 8W-21-1
TRAILER TOW...................... 8W-54-1
TRANSMISSION CONTROL SYSTEM.... 8W-31-1
TURN SIGNALS..................... 8W-52-1
VEHICLE SPEED CONTROL........... 8W-33-1
VEHICLE THEFT SECURITY SYSTEM.... 8W-39-1
WINDOW DEFOGGERS............... 8W-48-1
WIPERS........................... 8W-53-1
NS/GSWIRING DIAGRAMS 8W - 1
SECTION IDENTIFICATION
The wiring diagrams are grouped into individual
sections. If a component is most likely found in a par-
ticular group, it will be shown complete (all wires,
connectors, and pins) within that group. For exam-
ple, the Auto Shutdown Relay is most likely to be
found in Group 30, so it is shown there complete. It
can, however, be shown partially in another group if
it contains some associated wiring.
SYMBOLS
International symbols are used throughout the wir-
ing diagrams. These symbols are consistent with
those being used around the world.
GROUP TOPIC
8W-01 thru 8W-09 General Information and
Diagram Overview
8W-10 thru 8W-19 Main Sources of Power and
Vehicle Grounding
8W-20 thru 8W-29 Starting and Charging
8W-30 thru 8W-39 Powertrain/Drivetrain
Systems
8W-40 thru 8W-49 Body Electrical items and A/C
8W-50 thru 8W-59 Exterior Lighting, Wipers, and
Trailer Tow
8W-60 thru 8W-69 Power Accessories
8W-70 Splice Information
8W-80 Connector Pin Outs
8W-90 Connector Locations
(including grounds)
8W-95 Splice Locations
NS/GS8W-01 GENERAL INFORMATION 8W - 01 - 5
DESCRIPTION AND OPERATION (Continued)
8W-53 WIPERS
Component Page
A/C Heater Control....................8W-53-4
Body Control Module.............8W-53-2, 3, 4, 5
Front Washer Motor...............8W-53-3, 4, 5
Front Wiper Switch................8W-53-2, 3, 5
Fuse 5 (JB)..........................8W-53-5
Fuse 6 (JB)..........................8W-53-4
Fuse 19 (PDC)......................8W-53-2, 3
Fuse 22 (PDC)........................8W-53-5
G200.............................8W-53-3, 4
G300.............................8W-53-2, 3
G301.............................8W-53-3, 5
G400...............................8W-53-4
Headlamp Washer.....................8W-53-5
HVAC Control........................8W-53-4
Junction Block..................8W-53-2, 3, 4, 5
Low Washer Fluid Switch...............8W-53-3Component Page
Park Lamp Relay.....................8W-53-5
Power Distribution Center...........8W-53-2, 3, 5
PTC 3 (JB)..........................8W-53-5
PTC 7 (JB).....................8W-53-2, 3, 4, 5
Rear Washer Motor..................8W-53-3, 4
Rear Washer Switch...................8W-53-4
Rear Wiper Delay On Indicator...........8W-53-4
Rear Wiper Delay Switch...............8W-53-4
Rear Wiper Motor.....................8W-53-4
Rear Wiper On Indicator................8W-53-4
Rear Wiper On Switch..................8W-53-4
Washer Module.....................8W-53-3, 5
Wiper High/Low Relay................8W-53-2, 3
Wiper Module........................8W-53-2
Wiper On Relay.....................8W-53-2, 3
NS/GS8W - 53 WIPERS 8W - 53 - 1