washer fluid DODGE RAM 2002 Service Owner's Manual

(10) Disconnect the headlamp and dash wire har-
ness connector for the wiper module from the wiper
motor pigtail wire connector. Reconnect the battery
negative cable. Turn the ignition switch to the On
position. Place the multi-function switch in the posi-
tions indicated in the tests below, and check for bat-
tery voltage at the appropriate cavity of the
headlamp and dash wire harness connector for the
wiper motor.
(a) Check for battery voltage at the fused igni-
tion switch output (run-acc) circuit cavity of the
headlamp and dash wire harness connector for the
wiper module with the multi-function switch in
any position. If OK, go to Step b. If not OK, repair
the open fused ignition switch output (run-acc) cir-
cuit between the wiper module and the JB as
required.
(b) Check for battery voltage at the wiper switch
low speed output circuit cavity of the headlamp
and dash wire harness connector for the wiper
module with the multi-function switch in the Lo
position. If OK, go to Step c. If not OK, repair the
open wiper switch low speed output circuit between
the wiper module and the multi-function switch as
required.
(c) Check for battery voltage at the wiper switch
high speed output circuit cavity of the headlamp
and dash wire harness connector for the wiper
module with the multi-function switch in the Hi
position. If OK, go to Step d. If not OK, repair the
open wiper switch high speed output circuit
between the wiper module and the multi-function
switch as required.
(d) Check for battery voltage at the wiper park
switch sense circuit cavity of the headlamp and
dash wire harness connector for the wiper module
with the multi-function switch in the Lo or Hi posi-
tion, then move the switch to the Off position. The
meter should switch between battery voltage and
zero volts while the wipers are cycling. The meter
should read battery voltage when the switch is
first moved to the Off position until the wipers
park, and then read a steady zero volts. If not OK,
replace the faulty wiper module.
WASHER SYSTEM
The diagnosis found here addresses an electrically
inoperative washer system. If the washer pump/mo-
tor operates, but no washer fluid is emitted from the
washer nozzles, be certain to check the fluid level in
the reservoir. Also inspect the washer system compo-
nents as required. (Refer to 8 - ELECTRICAL/WIP-
ERS/WASHERS - INSPECTION). Refer to the
appropriate wiring information. The wiring informa-
tion includes wiring diagrams, proper wire and con-
nector repair procedures, details of wire harnessrouting and retention, connector pin-out information
and location views for the various wire harness con-
nectors, splices and grounds.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Turn the ignition switch to the On position.
Turn the multi-function switch wiper control knob to
the Lo or Hi speed position. Check whether the wip-
ers operate. If OK, go to Step 2. If not OK, repair the
wiper system as required before proceeding with the
following tests. Refer to WIPER SYSTEM .
(2) Turn the multi-function switch wiper control
knob to the Off position. Depress the washer button.
The washer pump should operate and the wipers
should operate for as long as the washer button is
depressed. The wipers should continue to operate for
about three sweep cycles after the button is released
before they park. If the wipers are OK, but the wash-
ers are not, go to Step 3. If the washers are OK, but
the wipers are not, go to Step 5.
(3) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Disconnect the headlamp and dash wire harness con-
nector for the washer pump/motor from the motor
connector receptacle. Measure the resistance between
the ground circuit cavity of the headlamp and dash
wire harness connector for the washer pump/motor
and a good ground. The meter should read zero
ohms. If OK, go to Step 4. If not OK, repair the open
ground circuit to ground (G100) as required.
(4) Reconnect the battery negative cable. Turn the
ignition switch to the On position. With the washer
button depressed, check for battery voltage at the
washer switch output circuit cavity of the headlamp
and dash wire harness connector for the washer
pump/motor. If OK, replace the faulty washer pump/
motor. If not OK, repair the open washer switch out-
put circuit between the washer pump/motor and the
multi-function switch as required.
(5) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Disconnect the instrument panel wire harness con-
nector (Connector C1) for the Central Timer Module
BR/BEWIPERS/WASHERS 8R - 5
WIPERS/WASHERS (Continued)

(CTM) from the CTM connector receptacle. Reconnect
the battery negative cable. Turn the ignition switch
to the On position. With the washer button
depressed, check for battery voltage at the washer
switch sense circuit cavity of the instrument panel
wire harness connector (Connector C1) for the CTM.
If OK, proceed to the diagnosis for the wiper relay.
(Refer to 8 - ELECTRICAL/WIPERS/WASHERS/
WIPER RELAY - DIAGNOSIS AND TESTING). If
not OK, repair the open washer switch sense circuit
between the CTM and the multi-function switch as
required.
CLEANING - WIPER & WASHER SYSTEM
WIPER SYSTEM
The squeegees of wiper blades exposed to the ele-
ments for a long time tend to lose their wiping effec-
tiveness. Periodic cleaning of the squeegees is
suggested to remove any deposits of salt or road film.
The wiper blades, arms, and windshield glass should
only be cleaned using a sponge or soft cloth and
windshield washer fluid, a mild detergent, or a non-
abrasive cleaner. If the wiper blades continue to
leave streaks, smears, hazing, or beading on the
glass after thorough cleaning of the squeegees and
the glass, the entire wiper blade assembly must be
replaced.
CAUTION: Protect the rubber squeegees of the
wiper blades from any petroleum-based cleaners,
solvents, or contaminants. These products can rap-
idly deteriorate the rubber squeegees.
WASHER SYSTEM
If the washer system is contaminated with foreign
material, drain the washer reservoir by removing the
front washer pump/motor from the reservoir. Clean
foreign material from the inside of the washer reser-
voir using clean washer fluid, a mild detergent, or a
non-abrasive cleaner. Flush foreign material from the
washer system plumbing by first disconnecting the
washer hoses from the washer nozzles, then running
the washer pump/motor to run clean washer fluid or
water through the system. Plugged or restricted
washer nozzles should be carefully back-flushed
using compressed air. If the washer nozzle obstruc-
tion cannot be cleared, replace the washer nozzle.
CAUTION: Never introduce petroleum-based clean-
ers, solvents, or contaminants into the washer sys-
tem. These products can rapidly deteriorate the
rubber seals and hoses of the washer system, as
well as the rubber squeegees of the wiper blades.CAUTION: Never use compressed air to flush the
washer system plumbing. Compressed air pres-
sures are too great for the washer system plumbing
components and will result in further system dam-
age. Never use sharp instruments to clear a
plugged washer nozzle or damage to the nozzle ori-
fice and improper nozzle spray patterns will result.
INSPECTION - WIPER & WASHER SYSTEM
WIPER SYSTEM
The wiper blades and wiper arms should be
inspected periodically, not just when wiper perfor-
mance problems are experienced. This inspection
should include the following points:
(1) Inspect the wiper arms for any indications of
damage, or contamination. If the wiper arms are con-
taminated with any foreign material, clean them as
required. (Refer to 8 - ELECTRICAL/WIPERS/
WASHERS - CLEANING). If a wiper arm is damaged
or corrosion is evident, replace the wiper arm with a
new unit. Do not attempt to repair a wiper arm that
is damaged or corroded.
(2) Carefully lift the wiper blade off of the glass.
Note the action of the wiper arm hinge. The wiper
arm should pivot freely at the hinge, but with no lat-
eral looseness evident. If there is any binding evident
in the wiper arm hinge, or there is evident lateral
play in the wiper arm hinge, replace the wiper arm.
CAUTION: Do not allow the wiper arm to spring
back against the glass without the wiper blade in
place or the glass may be damaged.
(3) Once proper hinge action of the wiper arm is
confirmed, check the hinge for proper spring tension.
Remove the wiper blade from the wiper arm. Either
place a small postal scale between the blade end of
the wiper arm and the glass, or carefully lift the
blade end of the arm away from the glass using a
small fish scale. Compare the scale readings between
the right and left wiper arms. Replace a wiper arm if
it has comparatively lower spring tension, as evi-
denced by a lower scale reading.
(4) Inspect the wiper blades and squeegees for any
indications of damage, contamination, or rubber dete-
rioration (Fig. 1). If the wiper blades or squeegees
are contaminated with any foreign material, clean
them and the glass as required. (Refer to 8 - ELEC-
TRICAL/WIPERS/WASHERS - CLEANING). After
cleaning the wiper blade and the glass, if the wiper
blade still fails to clear the glass without smearing,
streaking, chattering, hazing, or beading, replace the
wiper blade. Also, if a wiper blade is damaged or the
squeegee rubber is damaged or deteriorated, replace
8R - 6 WIPERS/WASHERSBR/BE
WIPERS/WASHERS (Continued)

the wiper blade with a new unit. Do not attempt to
repair a wiper blade that is damaged.
WASHER SYSTEM
The washer system components should be
inspected periodically, not just when washer perfor-
mance problems are experienced. This inspection
should include the following points:
(1) Check for ice or other foreign material in the
washer reservoir. If contaminated, clean and flush
the washer system. (Refer to 8 - ELECTRICAL/WIP-
ERS/WASHERS - CLEANING).
(2) Inspect the washer plumbing for pinched, leak-
ing, deteriorated, or incorrectly routed hoses and
damaged or disconnected hose fittings. Replace dam-
aged or deteriorated hoses and hose fittings. Leaking
washer hoses can sometimes be repaired by cutting
the hose at the leak and splicing it back together
using an in-line connector fitting. Similarly, sections
of deteriorated hose can be cut out and replaced by
splicing in new sections of hose using in-line connec-
tor fittings. Whenever routing a washer hose or a
wire harness containing a washer hose, it must be
routed away from hot, sharp, or moving parts. Also,sharp bends that might pinch the washer hose must
be avoided.
WASHER FLUID LEVEL
SWITCH
DESCRIPTION
The washer fluid level switch is a single pole, sin-
gle throw reed-type switch mounted on the rear of
the washer reservoir above the washer pump/motor,
in the left front corner of the engine compartment.
Only the molded plastic switch mounting flange and
connector receptacle are visible when the switch is
installed in the reservoir. A short nipple formation
extends from the inner surface of the switch mount-
ing flange, and a barb on the nipple near the switch
mounting flange is press-fit into a rubber grommet
seal installed in the mounting hole of the reservoir. A
small plastic float pivots on the end of a bracket that
extends from the switch nipple formation. Within the
float is a small magnet, which actuates the reed
switch. The washer fluid level switch cannot be
adjusted or repaired. If faulty or damaged, the switch
must be replaced.
OPERATION
The washer fluid level switch uses a pivoting,
oblong float to monitor the level of the washer fluid
in the washer reservoir. The float contains a small
magnet. When the float pivots, the changing proxim-
ity of its magnetic field will cause the contacts of the
small, stationary reed switch to open or close. When
the fluid level in the washer reservoir is at or above
the float level, the float moves to a vertical position
and the switch contacts open. When the fluid level in
the washer reservoir falls below the pivoting float,
the float moves to a horizontal position and the
switch contacts close. The switch contacts are con-
nected in series between ground and the washer fluid
switch sense input of the instrument cluster. The
switch is connected to the vehicle electrical system
through a dedicated take out and connector of the
headlamp and dash wire harness. The switch
receives ground through another take out of the
headlamp and dash wire harness with a single eyelet
terminal connector that is secured under a nut to a
ground stud located on the front extension of the left
front wheel housing in the engine compartment. The
washer fluid level switch can be diagnosed using con-
ventional diagnostic tools and methods. (Refer to 8 -
ELECTRICAL/INSTRUMENT CLUSTER/WASHER
FLUID INDICATOR - DIAGNOSIS AND TESTING).Fig. 1 Wiper Blade Inspection
1 - WORN OR UNEVEN EDGES
2 - ROAD FILM OR FOREIGN MATERIAL DEPOSITS
3 - HARD, BRITTLE, OR CRACKED
4 - DEFORMED OR FATIGUED
5 - SPLIT
6 - DAMAGED SUPPORT COMPONENTS
BR/BEWIPERS/WASHERS 8R - 7
WIPERS/WASHERS (Continued)

REMOVAL
The washer fluid level switch can be removed from
the washer reservoir without removing the reservoir
from the vehicle.
(1) Disconnect and isolate the battery negative
cable.
(2) Disconnect the washer hose from the barbed
outlet nipple of the washer pump/motor unit and
allow the washer fluid to drain into a clean container
for reuse.
(3) Disconnect the headlamp and dash wire har-
ness connector for the washer fluid level switch from
the switch connector receptacle (Fig. 2).
NOTE: The pivoting float of the washer fluid level
switch must be in a horizontal position within the
reservoir in order to be removed. With the reservoir
empty and in an upright position, the pivoting float
will orient itself to the horizontal position when the
switch connector receptacle is pointed straight
downwards.
(4) Using a trim stick or another suitable wide
flat-bladed tool, gently pry the barbed nipple of the
washer fluid level switch out of the rubber grommet
seal on the rear of the reservoir. Care must be taken
not to damage the reservoir.
(5) Remove the washer fluid level switch and float
from the washer reservoir.
(6) Remove the rubber grommet seal from the
washer fluid level switch mounting hole in the
washer reservoir and discard.
INSTALLATION
(1) Install a new rubber grommet seal into the
washer fluid level switch mounting hole in the front
of the washer reservoir. Always use a new rubber
grommet seal on the reservoir.
(2) Position the float of the washer fluid level
switch through the rubber grommet seal in the
washer reservoir (Fig. 2). The connector receptacle of
the washer fluid level switch should be pointed
downward.
(3) Press firmly and evenly on the washer fluid
level switch using hand pressure until the barbed
nipple is fully seated in the rubber grommet seal in
the washer reservoir mounting hole.
(4) Reconnect the headlamp and dash wire harness
connector for the washer fluid level switch to the
switch connector receptacle.
(5) Reconnect the washer hose to the barbed outlet
nipple of the washer pump/motor unit.
(6) Refill the washer reservoir with the washer
fluid drained from the reservoir during the removal
procedure.
(7) Reconnect the battery negative cable.
WASHER HOSES/TUBES
DESCRIPTION
The washer plumbing consists of a small diameter
rubber hose that is routed from the barbed outlet
nipple of the washer pump/motor on the washer res-
ervoir through the engine compartment along the left
inner fender shield to a molded plastic in-line fitting
with barbed nipples near the dash panel. A second
section of washer hose passes from the engine com-
partment into the cowl plenum area through a dedi-
cated hole with a rubber grommet near the left end
of the cowl plenum panel. Beneath the cowl plenum
cover/grille panel, a molded plastic wye fitting with
barbed nipples joins the engine compartment hose to
the two washer nozzle hoses. The two washer hoses
are routed through locating clips on the underside of
the cowl plenum cover/grille panel to the two washer
nozzles.
Washer hose is available for service only as roll
stock, which must then be cut to length. The molded
plastic washer hose fittings cannot be repaired. If
these fittings are faulty or damaged, they must be
replaced.
OPERATION
Washer fluid in the washer reservoir is pressurized
and fed by the washer pump/motor through the
washer system plumbing and fittings to the two
washer nozzles. Whenever routing the washer hose
or a wire harness containing a washer hose, it must
Fig. 2 Washer Reservoir
1 - FAN SHROUD
2 - LOW WASHER FLUID SENSOR
3 - WASHER PUMP
4 - WASHER RESERVOIR
8R - 8 WIPERS/WASHERSBR/BE
WASHER FLUID LEVEL SWITCH (Continued)

be routed away from hot, sharp, or moving parts;
and, sharp bends that might pinch the hose must be
avoided.
WASHER NOZZLE
DESCRIPTION
The two washer nozzles have integral snap fea-
tures that secure them in dedicated holes in the cowl
plenum cover/grille panel located near the base of the
windshield. The domed upper surface of the washer
nozzle is visible on the top of the plenum cover/grille
panel, and the nozzle orifice is oriented towards the
windshield glass. The washer plumbing fittings for
the washer nozzles are concealed beneath the cowl
plenum cover/grille panel. These fluidic washer noz-
zles are constructed of molded plastic. The cowl ple-
num cover/grille panel must be removed from the
vehicle to access the nozzles for service. The washer
nozzles cannot be adjusted or repaired and, if faulty
or damaged, they must be replaced.
OPERATION
The two washer nozzles are designed to dispense
washer fluid into the wiper pattern area on the out-
side of the windshield glass. Pressurized washer fluid
is fed to each nozzle from the washer reservoir by the
washer pump/motor through rubber hoses, which are
attached to a barbed nipple on each washer nozzle
below the cowl plenum cover/grille panel. The washer
nozzles incorporate a fluidic design, which causes the
nozzle to emit the pressurized washer fluid as an
oscillating stream to more effectively cover a larger
area of the glass area to be cleaned.
REMOVAL
(1) Remove the cowl plenum cover/grille panel
from the cowl top. (Refer to 23 - BODY/EXTERIOR/
COWL GRILLE - REMOVAL).
(2) From the underside of the cowl plenum cover/
grille panel, disconnect the washer hose from the
nozzle fitting.
(3) From the underside of the cowl plenum cover/
grille panel, compress the snap features of the
washer nozzle and push the nozzle out through the
top of the panel.
INSTALLATION
(1) From the top of the cowl plenum cover/grille
panel, insert the barbed nipple of the washer nozzle
through the nozzle mounting hole.
(2) With the orifice of the washer nozzle oriented
toward the windshield, use hand pressure to push
the nozzle into the mounting hole until the snap fea-tures of the nozzle are fully engaged with the under-
side of the cowl plenum cover/grille panel.
(3) From the underside of the cowl plenum cover/
grille panel, reconnect the washer hose to the washer
nozzle fitting.
(4) Reinstall the cowl plenum cover/grille panel
onto the cowl top. (Refer to 23 - BODY/EXTERIOR/
COWL GRILLE - INSTALLATION).
WASHER PUMP/MOTOR
DESCRIPTION
The washer pump/motor unit is located on the rear
of the washer reservoir, near the bottom in the left
front corner of the engine compartment. A small per-
manently lubricated and sealed electric motor is cou-
pled to the rotor-type washer pump. A seal flange
with a large barbed inlet nipple on the pump housing
passes through a rubber grommet seal installed in
the dedicated mounting hole near the bottom of the
washer reservoir. A smaller barbed outlet nipple on
the pump housing connects the unit to the washer
hose. The washer pump/motor unit is retained on the
reservoir by the interference fit between the barbed
pump inlet nipple and the grommet seal, which is a
light press fit. An integral electrical connector recep-
tacle is located on the motor housing. The washer
pump/motor unit cannot be repaired. If faulty or
damaged, the entire washer pump/motor unit must
be replaced.
OPERATION
The washer pump/motor unit is connected to the
vehicle electrical system through a single take out
and two-cavity connector of the headlamp and dash
wire harness. The washer pump/motor is grounded at
all times through a take out of the headlamp and
dash wire harness with a single eyelet terminal con-
nector that is secured by a nut to a ground stud
located on the forward extension of the left front
fender wheel housing in the engine compartment.
The washer pump/motor receives battery current on
a fused ignition switch output (run-acc) circuit
through the closed contacts of the momentary washer
switch within the multi-function switch only when
the washer button on the end of the switch control
stalk is depressed towards the steering column.
Washer fluid is gravity-fed from the washer reservoir
to the inlet side of the washer pump. When the pump
motor is energized, the rotor-type pump pressurizes
the washer fluid and forces it through the pump out-
let nipple, the washer plumbing, and the washer noz-
zles onto the windshield glass.
BR/BEWIPERS/WASHERS 8R - 9
WASHER HOSES/TUBES (Continued)

REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Disconnect the headlamp and dash wire har-
ness connector for the washer pump/motor from the
motor connector receptacle (Fig. 3).
(3) Disconnect the washer hose from the barbed
outlet nipple of the washer pump/motor and allow
the washer fluid to drain into a clean container for
reuse.
(4) Using a trim stick or another suitable wide
flat-bladed tool, gently pry the barbed inlet nipple of
the washer pump out of the rubber grommet seal in
the reservoir. Care must be taken not to damage the
reservoir.
(5) Remove the rubber grommet seal from the
washer pump mounting hole in the washer reservoir
and discard.
INSTALLATION
(1) Install a new rubber grommet seal into the
washer pump mounting hole in the washer reservoir.
Always use a new rubber grommet seal on the reser-
voir.
(2) Position the barbed inlet nipple of the washer
pump to the rubber grommet seal in the reservoir.
(3) Press firmly and evenly on the washer pump
until the barbed inlet nipple is fully seated in the
rubber grommet seal in the washer reservoir mount-
ing hole.
(4) Reconnect the washer hose to the barbed outlet
nipple of the washer pump.(5) Reconnect the headlamp and dash wire harness
connector for the washer pump/motor unit to the
motor connector receptacle (Fig. 3).
(6) Refill the washer reservoir with the washer
fluid drained from the reservoir during the removal
procedure.
(7) Reconnect the battery negative cable.
WASHER RESERVOIR
DESCRIPTION
The molded plastic washer fluid reservoir is
secured with integral mounting tabs to keyed slots
on the left side of the radiator fan shroud in the left
front corner of the engine compartment. A bright yel-
low plastic filler cap with a rubber seal and an Inter-
national Control and Display Symbol icon for
ªWindshield Washerº and the text ªWasher Fluid
Onlyº molded into it snaps over the open end of the
filler neck. A bail strap that is integral to the cap
secures the cap to the reservoir filler neck when it is
removed for inspecting or adjusting the fluid level in
the reservoir. There are separate, dedicated holes on
the rear side of the reservoir provided for the mount-
ing of the washer/pump motor unit and the washer
fluid level switch.
The washer reservoir cannot be repaired and, if
faulty or damaged, it must be replaced. The washer
reservoir, the grommet seals for the washer pump/
motor unit and the washer fluid level switch, and the
filler cap are each available for service replacement.
OPERATION
The washer fluid reservoir provides a secure,
on-vehicle storage location for a large reserve of
washer fluid for operation of the washer system. The
washer reservoir filler neck provides a clearly
marked and readily accessible point from which to
add washer fluid to the reservoir. The washer/pump
motor unit is located in a sump area near the bottom
of the reservoir to be certain that washer fluid will
be available to the pump as the fluid level in the res-
ervoir becomes depleted. The washer fluid level
switch is mounted just above the sump area of the
reservoir so that there will be adequate warning to
the vehicle operator that the washer fluid level is
low, before the washer system will no longer operate.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Drain the engine cooling system. (Refer to 7 -
COOLING - STANDARD PROCEDURE - DRAIN/
ALL EXCEPT DIESEL ENGINE) or (Refer to 7 -
Fig. 3 Washer Reservoir
1 - FAN SHROUD
2 - LOW WASHER FLUID SENSOR
3 - WASHER PUMP
4 - WASHER RESERVOIR
8R - 10 WIPERS/WASHERSBR/BE
WASHER PUMP/MOTOR (Continued)

COOLING - STANDARD PROCEDURE - DRAIN/
DIESEL ENGINE).
(3) Disconnect the upper radiator hose from the
radiator.
(4) Disconnect the headlamp and dash wire har-
ness connector for the washer fluid level switch from
the switch connector receptacle.
(5) Disconnect the headlamp and dash wire har-
ness connector for the washer pump/motor unit from
the motor connector receptacle.
(6) Disconnect the washer hose from the barbed
outlet nipple of the washer pump/motor and allow
the washer fluid to drain into a clean container for
reuse.
(7) While pulling the washer reservoir away from
the fan shroud, lift the reservoir upwards far enough
to disengage the reservoir mounting tabs from the
keyed upper and lower mounting slots in the fan
shroud (Fig. 4).
(8) Remove the washer reservoir from the engine
compartment.
INSTALLATION
(1) Position the washer reservoir into the engine
compartment (Fig. 4).
(2) Align and insert the upper and lower washer
reservoir mounting tabs into the keyed upper and
lower mounting slots in the radiator fan shroud.
When all the tabs are inserted, use hand pressure to
push the reservoir downwards far enough to engage
the mounting tabs in the keyways of the mounting
slots.(3) Reconnect the washer hose to the barbed outlet
nipple of the washer pump.
(4) Reconnect the headlamp and dash wire harness
connector for the washer pump/motor unit to the
motor connector receptacle.
(5) Reconnect the headlamp and dash wire harness
connector for the washer fluid level switch to the
switch connector receptacle.
(6) Reconnect the upper radiator hose to the radi-
ator.
(7) Refill the engine cooling system. (Refer to 7 -
COOLING - STANDARD PROCEDURE - REFILL/
ALL EXCEPT DIESEL ENGINE) or (Refer to 7 -
COOLING - STANDARD PROCEDURE - REFILL/
DIESEL ENGINE).
(8) Refill the washer reservoir with the washer
fluid drained from the reservoir during the removal
procedure.
(9) Reconnect the battery negative cable.
WIPER ARM
DESCRIPTION
The wiper arms are the rigid members located
between the wiper pivots that protrude from the cowl
plenum cover/grille panel near the base of the wind-
shield and the wiper blades on the windshield glass.
The wiper arm has a die cast metal pivot end. On the
underside of this pivot end is a socket formation with
internal serrations and a small, movable, stamped
steel latch plate that is secured loosely under a small
strap that is staked to the pivot end. The wide end of
a tapered, stamped steel channel hinges on and is
secured with a hinge pin to the pivot end of the
wiper arm. One end of a long, rigid, stamped steel
strap, with a small hole near its pivot end, is riveted
and crimped within the narrow end of the stamped
steel channel. The tip of the wiper blade end of this
strap is bent back under itself to form a small hook.
Concealed within the stamped steel channel, one end
of a long spring is hooked through a hole in a small
stamped steel strap on the hinge pin within the die
cast pivot end, while the other end of the spring is
hooked through the small hole in the steel strap. The
entire wiper arm has a satin black finish applied to
all of its visible surfaces.
A wiper arm cannot be adjusted or repaired. If
damaged or faulty, the entire wiper arm unit must be
replaced.
OPERATION
The wiper arms are designed to mechanically
transmit the motion from the wiper pivots to the
wiper blades. The wiper arm must be properly
indexed to the wiper pivot in order to maintain the
Fig. 4 Washer Reservoir
1 - FAN SHROUD
2 - WASHER FLUID LEVEL SWITCH
3 - WASHER PUMP
4 - WASHER RESERVOIR
BR/BEWIPERS/WASHERS 8R - 11
WASHER RESERVOIR (Continued)

Component Page
License Lamp......................... 8W-51
Low Note Horn....................... 8W-41
Manifold Absolute Pressure Sensor........ 8W-30
Outboard Clearance Lamps.............. 8W-50
Outboard Headlamps................... 8W-50
Outboard Identification Lamps........... 8W-50
Output Speed Sensor................... 8W-31
Overdrive Switch...................... 8W-31
Overhead Console..................... 8W-49
Oxygen Sensors....................... 8W-30
Oxygen Sensor Downstream Relay........ 8W-30
Park Brake Switch.................. 8W-40, 50
Park/Neutral Position Switch.......... 8W-30, 51
Park/Turn Signal Lamp................. 8W-52
Passenger Airbag On/Off Switch.......... 8W-43
Passenger Airbag...................... 8W-43
Passenger Cylinder Lock Switch.......... 8W-39
Passenger Door Ajar Switch.............. 8W-45
Passenger Door Lock Motor.............. 8W-61
Passenger Door Window/Lock Switch.... 8W-60, 61
Passenger Heated Seat Cushion.......... 8W-63
Passenger Heated Seat Switch........... 8W-63
Passenger Lumbar Motor................ 8W-63
Passenger Power Seat Front Vertical
Motor............................. 8W-63
Passenger Power Seat Horizontal Motor.... 8W-63
Passenger Power Seat Rear Vertical Motor . . 8W-63
Passenger Power Seat Switch............ 8W-63
Passenger Power Window Motor.......... 8W-60
Power Distribution Center............... 8W-10
Power Mirror Switch................... 8W-62Component Page
Power Mirror......................... 8W-62
Power Outlet......................... 8W-41
Powertrain Control Module.............. 8W-30
PTO Switch.......................... 8W-30
Quad High Beam Relay................. 8W-50
Radio Choke Relay..................... 8W-47
Radio............................... 8W-47
Rear Wheel Speed Sensor............ 8W-34, 35
Remote Radio Switch................... 8W-47
Splices.............................. 8W-70
Seat Belt Switch...................... 8W-40
Seat Heat Interface Module.............. 8W-63
Security Relay........................ 8W-39
Speakers............................ 8W-47
Speed Control Servo................... 8W-33
Speed Control Switches................. 8W-33
Tail/Stop/Turn Signal Lamp.............. 8W-51
Tailgate Lamps....................... 8W-51
Throttle Position Sensor................ 8W-30
Trailer Tow Connector.................. 8W-54
Trailer Tow Relay...................... 8W-54
Transmission Control Relay.............. 8W-31
Transmission Solenoid Assembly.......... 8W-31
Turn Signal/Hazard Switch.............. 8W-52
Underhood Lamp...................... 8W-44
Visor/Vanity Lamps.................... 8W-44
Washer Fluid Level Switch.............. 8W-40
Water In Fuel Sensor................... 8W-30
Wheel Speed Sensor.................... 8W-35
Windshield Washer Pump............... 8W-53
Wiper Motor Relay..................... 8W-53
8W - 02 - 2 8W-02 COMPONENT INDEXBR/BE

8W-15 GROUND DISTRIBUTION
Component Page
A/C Compressor Clutch.................8W-15-8, 10
A/C Heater Temperature Select.............8W-15-12
A/C-Heater Control.....................8W-15-14
Aftermarket Trailer Tow Connector............8W-15-6
Airbag Control Module....................8W-15-5
Ash Receiver Lamp.....................8W-15-14
Automatic Day/Night Mirror...............8W-15-13
Auxiliary Battery.......................8W-15-11
Battery.............................8W-15-11
Blend Door Actuator.....................8W-15-12
Blower Motor Relay......................8W-15-2
Brake Lamp Switch.....................8W-15-12
Brake Pressure Switch....................8W-15-3
Center High Mounted Stop Lamp No. 1........8W-15-17
Center High Mounted Stop Lamp No. 2........8W-15-17
Center Identification Lamp................8W-15-18
Central Timer Module.................8W-15-12, 13
Cigar Lighter.........................8W-15-14
Clockspring...........................8W-15-4
Combination Flasher....................8W-15-13
Controller Antilock Brake..................8W-15-5
Cummins Bus.........................8W-15-10
Cup Holder Lamp......................8W-15-14
Data Link Connector................8W-15-8, 10, 12
Daytime Running Lamp Module............8W-15-2, 3
Driver Cylinder Lock Switch...............8W-15-16
Driver Door Ajar Switch..................8W-15-16
Driver Door Window/Lock Switch..........8W-15-16, 17
Driver Heated Seat Cushion...............8W-15-15
Driver Heated Seat Switch................8W-15-13
Driver Power Seat Switch..............8W-15-15, 17
Electric Brake Provision..................8W-15-14
Engine Control Module....................8W-15-9
Engine Starter Motor Relay...............8W-15-8, 9
Fuel Heater..........................8W-15-10
Fuel Heater Relay.......................8W-15-2
Fuel Injection Pump.....................8W-15-9
Fuel Pump Module......................8W-15-7
Fuel Pump Relay.......................8W-15-2
Fuel Transfer Pump.....................8W-15-10
G100......................8W-15-2, 3, 4, 5, 7, 12
G101...............................8W-15-5
G102...............................8W-15-2
G105...............................8W-15-8
G107...............................8W-15-10
G113...............................8W-15-11
G114...............................8W-15-11
G115...............................8W-15-11
G116...............................8W-15-11
G117...............................8W-15-11
G118...............................8W-15-11
G120...............................8W-15-11
G200...........................8W-15-7, 12, 14
G201..........................8W-15-12, 13, 14
G300..........................8W-15-15, 16, 17
G301...............................8W-15-17
G302...............................8W-15-18
Glove Box Lamp And Switch...............8W-15-14
Headlamp Beam Select Switch..............8W-15-14
Headlamp Switch....................8W-15-13, 14
Heated Mirror Switch....................8W-15-13
High Note Horn........................8W-15-7
Ignition Switch........................8W-15-13
Instrument Cluster...................8W-15-12, 14
Component Page
Intake Air Heater Relay No. 1...............8W-15-9
Intake Air Heater Relay No. 2...............8W-15-9
Joint Connector No. 1...................8W-15-2, 5
Joint Connector No. 2....................8W-15-9
Joint Connector No. 5.................8W-15-13, 14
Joint Connector No. 6...................8W-15-4, 5
Joint Connector No. 8..................8W-15-5, 13
Junction Block...................8W-15-12, 13, 14
Left Back-Up Lamp......................8W-15-6
Left Front Door Speaker...................8W-15-4
Left Front Fender Lamp...................8W-15-6
Left License Lamp.......................8W-15-6
Left Outboard Clearance Lamp.............8W-15-18
Left Outboard Identification Lamp...........8W-15-18
Left Park/Turn Signal Lamp................8W-15-3
Left Power Mirror......................8W-15-16
Left Rear Fender Lamp...................8W-15-6
Left Remote Radio Switch..................8W-15-4
Left Tail/Stop/Turn Signal Lamp.............8W-15-6
Left Visor/Vanity Lamp...................8W-15-13
Low Note Horn.........................8W-15-7
Overdrive Switch.......................8W-15-12
Overhead Console......................8W-15-12
Oxygen Sensor 1/2 Left Bank Down...........8W-15-8
Oxygen Sensor 1/2 Pre-Catalyst..............8W-15-8
Oxygen Sensor 1/3 Post-Catalyst.............8W-15-8
Oxygen Sensor 2/2 Right Bank Down..........8W-15-8
Passenger Airbag On/Off Switch..............8W-15-5
Passenger Cylinder Lock Switch.............8W-15-16
Passenger Door Ajar Switch................8W-15-16
Passenger Door Window/Lock Switch..........8W-15-16
Passenger Heated Seat Cushion.............8W-15-15
Passenger Heated Seat Switch..............8W-15-13
Passenger Power Seat Switch..............8W-15-15
Power Distribution Center.................8W-15-2
Power Mirror Switch....................8W-15-16
Power Outlet.........................8W-15-14
Powertrain Control Module..............8W-15-8, 10
Quad High Beam Relay...................8W-15-2
Radio...............................8W-15-5
Radio Choke Relay......................8W-15-4
Right Back-Up Lamp.....................8W-15-6
Right Front Door Speaker..................8W-15-4
Right Front Fender Lamp..................8W-15-6
Right License Lamp......................8W-15-6
Right Outboard Clearance Lamp............8W-15-18
Right Outboard Identification Lamp..........8W-15-18
Right Park/Turn Signal Lamp...............8W-15-7
Right Power Mirror.....................8W-15-16
Right Rear Fender Lamp..................8W-15-6
Right Remote Radio Switch.................8W-15-4
Right Tail/Stop/Turn Signal Lamp............8W-15-6
Right Visor/Vanity Lamp..................8W-15-13
Seat Belt Switch.....................8W-15-15, 17
Seat Heat Interface Module................8W-15-15
Security Relay.........................8W-15-2
Speed Control Servo.....................8W-15-3
Tailgate Lamp.........................8W-15-6
Trailer Tow Connector....................8W-15-6
Trailer Tow Relay.......................8W-15-2
Underhood Lamp.......................8W-15-3
Washer Fluid Level Switch.................8W-15-3
Windshield Washer Pump..................8W-15-7
Wiper Motor...........................8W-15-7
BR/BE8W-15 GROUND DISTRIBUTION 8W - 15 - 1

8W-40 INSTRUMENT CLUSTER
Component Page
Central Timer Module................. 8W-40-3
Data Link Connector................. 8W-40-4
Daytime Running Lamp Module....... 8W-40-2, 7
Engine Control Module................ 8W-40-2
Fuse 5 (JB)......................... 8W-40-5
Fuse 14 (JB).................. 8W-40-2, 3, 4, 7
Fuse 17 (JB)........................ 8W-40-2
Fuse F (PDC)....................... 8W-40-5
G100............................ 8W-40-4, 6
G200............................ 8W-40-2, 6
G201.......................... 8W-40-2, 5, 7
G300.............................. 8W-40-3
G301.............................. 8W-40-3
Headlamp Beam Select Switch.......... 8W-40-7Component Page
Headlamp Switch.................... 8W-40-5
Instrument Cluster......... 8W-40-2, 3, 4, 5, 6, 7
Joint Connector No. 5................. 8W-40-5
Joint Connector No. 7............... 8W-40-4, 6
Joint Connector No. 8................. 8W-40-5
Junction Block............... 8W-40-2, 3, 4, 5, 7
Overdrive Switch.................... 8W-40-6
Park Brake Switch................... 8W-40-2
Power Distribution Center............. 8W-40-5
Powertrain Control Module............. 8W-40-6
Radio............................. 8W-40-5
Seat Belt Switch..................... 8W-40-3
Turn Signal/Hazard Switch............. 8W-40-7
Washer Fluid Level Switch............. 8W-40-4
BR/BE8W-40 INSTRUMENT CLUSTER 8W - 40 - 1