VTSS/SKIS INDICATOR LAMP
DESCRIPTION
The Sentry Key Remote Entry System (SKREES)
uses an indicator light to convey information on the
status of the system to the customer. This light is
shared with the Vehicle Theft Security System
(VTSS). The light is located in the Mechanical
Instrument Cluster (MIC). The VTSS status is con-
trolled by the Body Control Module (BCM), via Pro-
grammable Communication Interface (PCI) data bus
communication with the MIC, based upon messages
it receives from the Sentry Key Remote Entry Mod-
ule (SKREEM) on the PCI data bus.
OPERATION
The Mechanical Instrument Cluster (MIC) per-
forms a four second bulb check via PCI communica-
tion with the Sentry Key Remote Entry Module
(SKREEM). After the bulb check, the lamp is con-
trolled according to SKREEM messages. Then, the
SKREEM sends messages to the BCM to operate thelight based upon the results of the Sentry Key
Remote Entry System (SKREES) self tests. The light
may be actuated in two possible ways, flashing or on
solid. If the light comes on and stays on solid after a
power-up test, this indicates that the SKREEM has
detected a system malfunction. If the SKREEM
detects an invalid key when the ignition switch is
moved to the ON position, it sends a message on the
PCI bus to the MIC, to flash the light. The SKREEM
can also send a message to flash the light and gen-
erate a single audible chime at the same time. These
two events occurring simultaneously indicate that
the SKIS has been placed into the9Customer Learn9
mode (Refer to 8 - ELECTRICAL/VEHICLE THEFT
SECURITY/TRANSPONDER KEY - STANDARD
PROCEDURE). If the light comes on and stays on
after the power-up test, diagnosis of the SKREES
should be performed using a DRBIIItscan tool and
the appropriate Body Diagnostic Procedures informa-
tion. The light is a Light Emitting Diode (LED) and
is not a serviceable component.
8Q - 8 VEHICLE THEFT SECURITYRS
WIPERS/WASHERS
TABLE OF CONTENTS
page page
WIPERS/WASHERS
DESCRIPTION..........................1
OPERATION............................2
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - FRONT WIPER
SYSTEM.............................2
DIAGNOSIS AND TESTING - FRONT
WIPER/WASHER SWITCH................2
DIAGNOSIS AND TESTING - FAILED PARK
SWITCH.............................2
DIAGNOSIS AND TESTING - REAR WIPER
SYSTEM.............................4
DIAGNOSIS AND TESTING - WASHER
SYSTEM.............................5
FRONT WIPER ARMS
STANDARD PROCEDURE - FRONT WIPER
ARM ALIGNMENT......................9
REMOVAL.............................9
INSTALLATION..........................9
FRONT WIPER MOTOR
REMOVAL.............................9
INSTALLATION.........................10
REAR WIPER ARM
REMOVAL.............................10
INSTALLATION.........................10
REAR WIPER MOTOR
REMOVAL.............................10INSTALLATION.........................10
REAR WIPER/WASHER SWITCH
DESCRIPTION.........................10
OPERATION...........................11
WASHER FLUID LEVEL SWITCH
REMOVAL.............................11
INSTALLATION.........................11
WASHER HOSES
REMOVAL.............................11
INSTALLATION.........................12
WASHER PUMP MOTOR
REMOVAL.............................12
INSTALLATION.........................12
WASHER RESERVOIR
REMOVAL.............................12
INSTALLATION.........................13
WIPER BLADES
REMOVAL.............................13
CLEANING............................13
INSTALLATION.........................13
WIPER LINKAGE
REMOVAL.............................13
INSTALLATION.........................14
WIPER MODULE
REMOVAL.............................14
INSTALLATION.........................14
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
position.
If equipped with Manual Temperature Controls
(MTC), the rear wiper/washer switch is integral to
the HVAC control unit. It replaces what was formerly
the ON/OFF switch. If equipped with Automatic Tem-
perature Controls (ATC), the rear wiper/washer
switch is located on the accessory switch panel in the
center stack of the instrument panel.
RSWIPERS/WASHERS8R-1
OPERATION
FRONT WIPER/WASHER SYSTEM
The windshield washer circuit is protected by a 15
amp Cartridge Fuse located in the IPM. 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. The high speed/
low speed relays are located in the IPM. 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, the 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.
The windshield wiper motor and linkage is located
in an integral wiper unit at the rear of the engine
compartment. The wiper unit must be removed to
gain access to the wiper motor.
The front and rear washer systems share the same
washer pump motor.
REAR WIPER/WASHER SYSTEM
When rear wiper operation is required, the BCM
will provide ignition ON voltage to the rear wiper
motor (Export and ATC equipped vehicles only).
When the wiper switch is turned OFF, the BCM pro-
vides circuit ground to operate the motor until the
wipe cycle is complete and the wiper arm returns to
the base of the rear window.
Switch only offers an intermittent rear wiper
mode. The wiper motor will cycle every 7 seconds.
The intermittent delay time is also adjusted based
upon vehicle speed. With the vehicle traveling
greater than 50 mph, the cycle changes to every 5
seconds.
When rear washer is requested by depressing and
holding down the switch, the BCM then provides a
ground for the washer motor. Until the switch is
released, the motor will be in a continuous wipe
mode, then return to an intermittent wipe mode.
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - FRONT WIPER
SYSTEM
The windshield wiper system operates in several
modes:
²Low and high speed normal wipe
²Speed sensitive intermittent wipe
²Wipe after wash
²Park (switch OFF)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. DTC's can
be retrieved using a DRB IIItscan tool. Refer to the
proper Body Diagnostic Procedures manual for DTC
descriptions and retrieval information.
The windshield wiper park switch and circuit is
monitored by the BCM. The park switch and circuit
can be tested using the Wiper System Diagnosis
table.
DIAGNOSIS AND TESTING - FRONT
WIPER/WASHER SWITCH
(1) Remove the multi-function switch (Refer to 8 -
ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/
MULTI-FUNCTION SWITCH - REMOVAL).
(2) Using an ohmmeter check resistance readings
between switch pins. Refer to the WIPER/WASHER
SWITCH RESISTANCE table.
WIPER/WASHER SWITCH RESISTANCE
SWITCH POSITION RESISTANCE BETWEEN
OFF 1 AND 2 = 23.9KV 5%
DELAY POSITION
1ST 1 AND 2 = 7.9KV 5%
2ND 1 AND 2 = 4.6KV 5%
3RD 1 AND 2 = 2.9KV 5%
4TH 1 AND 2 = 1.9KV 5%
5TH 1 AND 2 = 1.3KV 5%
LOW 1 AND 2 = 670V 5%
HIGH 1 AND2=240V 5%
WASH 1 AND 4 = 5.9KV 5%
DIAGNOSIS AND TESTING - FAILED PARK
SWITCH
If the wiper park switch has failed, the windshield
wipers will operate as follows:
²SWITCH OFF- Wipers stop in current location
regardless of the park signal.
²INTERMITTENT MODE- Wipers operate con-
tinuously or at low speed for one or more extra
wipes.
²LOW SPEED- Wipers operate at low speed.
²HIGH SPEED- Wipers operate at high speed.
8R - 2 WIPERS/WASHERSRS
WIPERS/WASHERS (Continued)
²WIPE AFTER WASH- Wipers operate at low
speed in any mode setting. Wipers operate only while
the wash button is depressed with switch in the OFF
mode and 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 WIPER SYSTEM DIAGNO-
SIS table.
WIPER SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
WIPER BLADES DO NOT
PARK PROPERLY1. WIPER ARMS IMPROPERLY
PARKED.1. REMOVE WIPER ARMS AND REPARK.
REFER TO WIPER ARM REMOVAL AND
INSTALLATION.
2. WIPER ARMS ARE LOOSE ON
PIVOT SHAFT.2. REMOVE WIPER ARM AND REPARK.
REFER TO WIPER ARM REMOVAL AND
INSTALLATION.
3. MOTOR CRANK LOOSE AT
OUTPUT SHAFT.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.
4. STRIPPED WIPER ARM HEAD. 4. REPLACE WIPER ARM.
MOTOR STOPS IN ANY
POSITION WHEN THE
SWITCH IS TURNED OFFOPEN PARK CIRCUIT. 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 MOTOR DOES NOT PARK.
MOTOR WILL NOT STOP
WHEN THE SWITCH IS
TURNED OFF1. FAULTY SWITCH. 1. CHECK SWITCH IN LOW, HIGH AND
INTERMITTENT POSITION.
2. LACK OF DYNAMIC BRAKE ON
WET GLASS.2. ENSURE PARK SWITCH HAS CLEAN
GROUND.
WIPER BLADES SLAP
AGAINST COWL SCREEN
OR WINDOW MOLDINGS.WIPER ARMS ARE PARKED
INCORRECTLY.PARK WIPER ARMS. REFER TO WIPER
ARM ADJUSTMENT.
BLADES CHATTER 1. FOREIGN SUBSTANCE SUCH
AS POLISH ON GLASS OR
BLADES.1. CLEAN GLASS AND BLADE ELEMENT
WITH NON-ABRASIVE CLEANER.
2. ARMS TWISTED, BLADE AT
WRONG ANGLE ON GLASS.2. REPLACE ARM.
3. BLADE STRUCTURE BENT. 3. REPLACE BLADE.
4. BLADE ELEMENT HAS
PERMANENT SET.4. REPLACE BLADE.
RSWIPERS/WASHERS8R-3
WIPERS/WASHERS (Continued)
FRONT WIPER ARMS
STANDARD PROCEDURE - FRONT 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 element 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 1, and align as necessary until
wiper stops chattering and wipes the windshield
clear.
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) Lift the arm cap upward.
(2) Remove the nut holding wiper arm to the wiper
pivot.
(3) Using a suitable two jaw puller, separate the
wiper arm from the wiper pivot (Fig. 1).
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. 2).
(3) Install the nut to hold the wiper arm to the
wiper pivot. Torque nut to 35 N´m (26 ft. lbs.).
CAUTION: It is important to torque the wiper arm
nut properly to insure that the wiper arm head does
not strip and damage the arm, blade, and pivot of
both wiper arms.
(4) Push the arm cap cover down.
FRONT WIPER MOTOR
REMOVAL
(1) Remove the front wiper motor from vehicle
(Refer to 8 - ELECTRICAL/WIPERS/WASHERS/
WIPER MODULE - REMOVAL).
(2) Remove four backwall bolts and four brace
nuts.
(3) Remove wiper linkage from wiper module.
(4) Disconnect wire connectors from back of wiper
motor.
Fig. 1 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. 2 WIPER ARM ADJUSTMENT
1 - WIPER BLADES
2 - WINDSHIELD
3 - WASHER NOZZLES
4 - WIPER ARMS
RSWIPERS/WASHERS8R-9
(5) Remove wiper linkage from motor crank. DO
NOT remove crank from motor.
(6) Remove bolts holding wiper motor and remove
motor.
INSTALLATION
(1) Place wiper module on a suitable work surface.
(2) Install wiper linkage into wiper unit.
(3) Connect wire connectors to wiper motor.
(4) Place the wiper module into engine compart-
ment and connect wiper module wire connector to
engine wire harness (Fig. 7).
(5) Install the four backwall bolts and four brace
nuts to wiper module.
(6) Operate wiper motor and verify that the wiper
motor parks when wiper switch is turned OFF.
REAR WIPER ARM
REMOVAL
(1) Remove arm nut cap.
(2) Remove wiper arm nut.
(3) Pull wiper from pivot by rocking back and
forth.
INSTALLATION
(1) Verify that wipers are in parked position.
(2) Position arm on pivot.
(3) Install wiper arm nut and torque to 20 N´m
(175 in. lbs.).
REAR WIPER MOTOR
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove rear wiper arm. (Refer to 8 - ELEC-
TRICAL/WIPERS/WASHERS/REAR WIPER ARM -
REMOVAL) in this section.
(3) Open liftgate.
(4) Remove liftgate trim panel. (Refer to 23 -
BODY/DECKLID/HATCH/LIFTGATE/TAILGATE/
TRIM PANEL - REMOVAL).
(5) Disconnect wire connector from rear wiper
motor.
(6) Remove screws holding rear wiper motor to lift-
gate.
(7) Remove wiper motor from liftgate.
INSTALLATION
(1) Position the wiper motor in the liftgate.
(2) Install the retaining screws.
(3) Connect the wire harness connector.(4) Install the liftgate trim panel. (Refer to 23 -
BODY/DECKLID/HATCH/LIFTGATE/TAILGATE/
TRIM PANEL - INSTALLATION).
(5) Connect wire connector to rear wiper motor.
(6) Install the screws holding rear wiper motor to
liftgate.
(7) Install the wiper motor to the liftgate.
(8) Close the liftgate.
(9) Install the wiper arm. (Refer to 8 - ELECTRI-
CAL/WIPERS/WASHERS/REAR WIPER ARM -
INSTALLATION) in this section.
(10) Connect the battery negative cable.
REAR WIPER/WASHER
SWITCH
DESCRIPTION
On Automatic Temperature Control (ATC) vehicles
only, the rear window wiper/washer switches are
located on the center bezel with the hazard and
heated seat switches (Fig. 3). They are not service-
able separately from the hazard and heated seat
switches. If defective, the entire switch assembly
must be replaced.
On Manual Temperature Control (MTC) vehicles
only, the rear window wiper/washer switch is located
on the HVAC control head (Fig. 4) attached to the
center bezel. They are not serviceable separately
from the control head. If found faulty, the entire
MTC head must be replaced.
Fig. 3 INSTRUMENT PANEL CENTER BEZEL
1 - TRIM BEZEL
2 - IN CAR TEMPERATURE SENSOR
3 - A/C REQUEST SWITCH
4 - REAR WINDOW DEFOGGER/HEATED MIRRORS SWITCH
COMBO
5 - FRONT WINDOW DEFROSTER MODE SELECTOR
8R - 10 WIPERS/WASHERSRS
FRONT WIPER MOTOR (Continued)
INSTALLATION
(1) Push filler neck and front washer hose through
the opening in the front fender side shield. Connect
the reservoir to the body mount by lowering the res-
ervoir down.
(2) Install the two reservoir mounting screws.
Torque screws to 8.5 - 11.3 N´m (75 - 100 in. lbs.).
(3) Connect the electrical body harness connectors
to the washer pump motor and the fluid level sensor.
Slide the red lock on the connector to the closed or
locked position.
(4) Assure that washer is properly routed to pre-
vent pinching and possible inoperative washers.
(5) Install the left right front wheelhouse splash
shield (Refer to 23 - BODY/EXTERIOR/WHEEL-
HOUSE SPLASH SHIELD - INSTALLATION).
(6) Install the right front wheel and tire assembly
(Refer to 22 - TIRES/WHEELS - INSTALLATION).
(7) lower vehicle from hoist or jack stands.
(8) Install the filler tube screw. Torque screw to 8.5
- 11.3 N´m (75 - 100 in. lbs.).
(9) Connect the washer hose to the hose clip
located on the front fender side shield.
(10) Connect the washer hose at the in-line con-
nector forward of the cowl grille.
(11) Install the engine fresh air housing inside the
engine compartment (Refer to 9 - ENGINE/AIR
INTAKE SYSTEM/AIR CLEANER HOUSING -
INSTALLATION).
(12) Connect the battery negative cable.
(13) Verify system operation.
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. 5) and (Fig. 6).
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. 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 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. 5).
WIPER LINKAGE
REMOVAL
(1) Remove the front windshield wiper unit from
vehicle (Refer to 8 - ELECTRICAL/WIPERS/WASH-
ERS/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 to the wiper unit.
(6) Remove the wiper linkage from the wiper unit.
Fig. 5 WINDSHIELD WIPER BLADE
1 - RELEASE TAB
Fig. 6 REAR WIPER
1 - WIPER ARM
2 - BLADE LATCH
RSWIPERS/WASHERS8R-13
WASHER RESERVOIR (Continued)
(7) Disconnect the wire connectors from back of
the wiper motor.
INSTALLATION
(1) Connect the wire harness connector.
(2) Install the linkage on the wiper unit.
(3) Install the nut holding the linkage to the wiper
unit.
(4) Install the cowl cover brackets to the wiper
nut.
(5) Install the front wiper unit (Refer to 8 - ELEC-
TRICAL/WIPERS/WASHERS/WIPER MODULE -
INSTALLATION).
(6) Install the cowl cover.
(7) Install the wiper arms and blades.
WIPER MODULE
REMOVAL
(1) Release the hood latch and open hood.
(2) Disconnect and isolate the battery negative
cable.
(3) Remove the wiper arms.
(4) Remove the cowl cover (Refer to 23 - BODY/
EXTERIOR/COWL GRILLE - REMOVAL).
(5) Disconnect the positive lock on the wiper mod-
ule wire connector (Fig. 7).
(6) Disconnect the wiper module wire connector
from the engine compartment wire harness.
(7) Disconnect the windshield washer hose from
coupling outside the module.
(8) Disconnect the drain tubes from nipples on bot-
tom of the wiper module.(9) Remove nuts holding wiper module to lower
windshield fence.
(10) Remove bolts holding the wiper module to the
dash panel (Fig. 8).
(11) Lift wiper module from weld-studs on lower
windshield fence.
CAUTION: Do not allow wiper module to rest on
brake master cylinder reservoir, damage to brake
system can result.
(12) Remove wiper module.
INSTALLATION
(1) Position the wiper module into the cowl.
(2) Install the bolts that secure the wiper module
to the dash (Fig. 8).
(3) Install the nuts that retain the wiper module.
(4) Connect the drain tubes to the nipples on the
wiper module.
(5) Connect the windshield washer tube.
(6) Connect the wire harness connector to the
wiper module (Fig. 8).
(7) Connect the positive lock on the wiper module
wire connector (Fig. 7).
CAUTION: Do not allow wiper module to rest on
brake master cylinder reservoir, damage to brake
system can result.
(8) Install the cowl cover (Refer to 23 - BODY/EX-
TERIOR/COWL GRILLE - INSTALLATION).
(9) Install the wiper arms and blades.
(10) Connect the battery negative cable.
(11) Close the hood.
Fig. 7 WIPER MODULE WIRE CONNECTOR
1 - WIPER SYSTEM WIRE CONNECTOR
2 - LOCK TAB
3 - POSITIVE LOCK
4 - WIPER MODULE
Fig. 8 WIPER MODULE
1 - BOLT
2 - NUTS
3 - BOLT
4 - WIPER MODULE
5 - WINDSHIELD
8R - 14 WIPERS/WASHERSRS
WIPER LINKAGE (Continued)