ECU MERCEDES-BENZ SPRINTER 2006 Service Manual

(5) Pull SKREEM straight out of rear of instru-
ment cluster (Fig. 4) and remove from vehicle.
SENTRY KEY REMOTE ENTRY MODULE TRAN-
SPONDER RING
(1) Open hood, disconnect and isolate the battery
negative cable.
(2) Wait two minutes for the system reserve capac-
itor to discharge before beginning any system or com-
ponent service.
(3) Remove the steering column shrouds.
(4) Unsnap the SKREEM transponder from the
ignition cylinder (Fig. 5).(5) Remove top cover - cluster (Refer to 23 -
BODY/INSTRUMENT PANEL/TOP COVER - CLUS-
TER - REMOVAL).
(6) Disconnect the transponder electrical connector
from the SKREEM (Fig. 4).
(7) Maneuver wiring from instrument panel and
remove transponder from vehicle.
INSTALLATION
SENTRY KEY REMOTE ENTRY MODULE
(1) Push SKREEM straight into the rear of instru-
ment cluster (Fig. 4).
(2) Connect the one electrical connector to the
SKREEM (Fig. 4).
(3) Install the top cover - cluster (Refer to 23 -
BODY/INSTRUMENT PANEL/TOP COVER - CLUS-
TER - INSTALLATION)
(4) Connect the battery negative cable.
(5) Verify vehicle and system operation.
(6) Close hood.
SENTRY KEY REMOTE ENTRY MODULE TRAN-
SPONDER RING
(1) Maneuver wiring through instrument panel
(Fig. 5).
(2) Connect the transponder electrical connect or
to the SKREEM (Fig. 4).
(3) Install the top cover - cluster (Refer to 23 -
BODY/INSTRUMENT PANEL/TOP COVER - CLUS-
TER - INSTALLATION)
(4) Snap the SKREEM transponder in place
around the ignition cylinder (Fig. 5).
(5) Install the steering column shrouds.
(6) Connect the battery negative cable.
(7) Verify vehicle and system operation.
(8) Close hood.
SIREN
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove mounting fasteners.
(3) Disconnect wire harness connector from siren.
INSTALLATION
(1) Connect wire harness connector to siren.
(2) Position siren. Install and tighten mounting
fasteners.
(3) Connect battery negative cable.
Fig. 4 SENTRY KEY REMOTE ENTRY MODULE
(SKREEM) - REMOVE/INSTALL
1 - SENTRY KEY REMOTE ENTRY MODULE (SKREEM)
2 - INSTRUMENT CLUSTER (REAR)
3 - INSTRUMENT PANEL
Fig. 5 TRANSPONDER RING
1 - TRANSPONDER RING
2 - STEERING COLUMN
8Q - 4 VEHICLE THEFT SECURITYVA

TRANSPONDER KEY
DESCRIPTION
The Sentry Key Immobilizer System (SKIS) which
communicates with the Sentry Key Remote Entry
Module (SKREEM), uses a transponder chip that is
integral to each key fob (Fig. 6). Ignition keys are
supplied with the vehicle when it is shipped from the
factory. The transponder chip is located within the
Remote Keyless Entry (RKE) fob.
OPERATION
Each Sentry Key has a unique transponder identi-
fication code permanently programmed into it by the
manufacturer. Likewise, the Sentry Key Remote
Entry Module (SKREEM) has a unique ªSecret Key9
code programmed into it by the manufacturer as
well. When a Sentry Key is programmed into the
memory of the SKREEM, the SKREEM stores the
transponder identification code from the Sentry Key,
and the Sentry Key learns the ªSecret Keyº code
from the SKREEM. Once the Sentry Key learns the
ªSecret Keyº code of the SKREEM, it is also perma-
nently programmed into the transponder's memory.
The Sentry Key's transponder is within the range
of the SKREEM's transponder ring when it is
inserted into the ignition lock cylinder. When the
ignition switch is turned to the ON position, the
SKREEM communicates with the Sentry Key via a
radio frequency (RF) signal. The SKREEM deter-
mines if a valid key is present based on the informa-
tion it receives from the Sentry Key. If a valid key is
detected, that fact is communicated to the Engine
Control Module (ECM) via the Controller Area Net-
work (CAN) data bus and the vehicle is allowed to
continue running. If an invalid key is received by theECM or no status at all is communicated, the vehicle
will stall after two (2) seconds of running. The indi-
cator light will be flashing at this point. The Sentry
Key's transponder can not be repaired. If it is faulty
or damaged, it must be replaced.
Common communication problems:
²Two transponder keys too close together.
²Speed Pass too close to transponder key.
Solid indicator that there is a system failure.
²Loss of ECM communication.
²Failed transponder ring circuit.
Fig. 6 TRANSPONDER KEY
1 - TRANSPONDER KEY FOB
2 - RKE BUTTONS
3 - INDICATOR LIGHT
4 - KEY BLADE RELEASE BUTTON
5 - KEY BLADE
VAVEHICLE THEFT SECURITY 8Q - 5

WIPERS/WASHERS
DESCRIPTION
An electrically operated intermittent wiper and
washer system is standard factory-installed safety
equipment on this model (Fig. 1). The wiper and
washer system includes the following major compo-
nents, which are described in further detail else-
where in this service information:
²Check Valve- The washer system check valve
is integral to the plumbing fitting located in the
washer plumbing between the cowl plenum washer
hose and the two washer nozzle hoses, and is locatedbeneath the cowl top panel at the base of the wind-
shield in the engine compartment.
²Multi-Function Switch- The multi-function
switch is secured to the top of the steering column,
just below the steering wheel. Only the left (lighting)
control stalk, right (wiper) control stalk and the haz-
ard warning switch button for the multi-function
switch are visible, the remainder of the switch is con-
cealed beneath the steering column shrouds. The
multi-function switch contains all of the switches for
Fig. 1 Wiper & Washer System
1 - WASHER RESERVOIR, PUMP/MOTOR, FLUID LEVEL SWITCH 4 - MULTI-FUNCTION (WIPER, WASHER, & LIGHTING) SWITCH
2 - WIPER MOTOR, LINKAGE & PIVOTS MODULE 5 - RAIN SENSOR (W/AUTOMATIC WIPERS ONLY)
3 - WIPER RELAY 6 - RAIN SENSOR CONTROL MODULE (W/AUTOMATIC WIPERS
ONLY)
8R - 2 WIPERS/WASHERSVA

both the wiper and washer systems. (Refer to 8 -
ELECTRICAL/LAMPS/LIGHTING - EXTERIOR/
MULTI-FUNCTION SWITCH - DESCRIPTION)
²Rain Sensor- Vehicles equipped with an
optional automatic wiper feature have an electronic
rain sensor concealed within the base of the rear
view mirror unit on the inside of the laminated wind-
shield glass.
²Rain Sensor Control Module- Vehicles
equipped with an optional automatic wiper feature
have an electronic rain sensor control module located
under the lower instrument panel above the acceler-
ator pedal in the passenger compartment of the vehi-
cle.
²Washer Fluid Level Switch- The optional
washer fluid level switch is integral to a unique ver-
sion of the washer pump/motor unit, which is located
in a dedicated hole on the top of the sump area near
the back of the windshield washer reservoir on the
right front fender wheel house in the engine com-
partment.
²Washer Nozzle- A single washer nozzle with
three separate orifices is secured with integral snap
features to each wiper arm. The hoses for the washer
nozzles are concealed beneath a molded plastic guide
on the underside of each wiper arm and routed to the
engine compartment through unique molded plastic
elbow fittings located near each wiper pivot at the
base of the windshield.
²Washer Pump/Motor- Two different washer
pump/motor units are available for this model. One
version has an integral washer fluid level switch that
provides a hard wired input to the instrument cluster
for control of the optional washer fluid indicator. The
washer pump/motor unit is located in a dedicated
hole on the top of the sump area near the back of the
windshield washer reservoir on the right front fender
wheel house in the engine compartment.
²Washer Reservoir- The washer reservoir is
located on the right front fender wheel house in the
engine compartment. The washer reservoir filler is
accessed from the right front corner of the engine
compartment.
²Wiper Arm- The two unequal length wiper
arms are secured to the two wiper pivots, which
extend through the cowl panel near the base of the
windshield. The longer arm is installed on the left
(driver) side of the windshield.
²Wiper Blade- The two unequal length wiper
blades are secured to the two wiper arms, and are
parked on the glass near the bottom of the wind-
shield when the wiper system is not in operation.
The longer blade is installed on the left (driver) side
of the windshield.
²Wiper Linkage- The wiper pivots are the only
visible components of the wiper linkage. The remain-
der of the linkage is concealed within the engine
compartment just behind the hood opening. Thewiper linkage module includes the two wiper drive
links, the wiper motor crank arm, the two wiper piv-
ots, and the linkage and motor mounting bracket.
²Wiper Motor- The wiper motor is secured to
the wiper linkage module bracket on the underside of
the cowl panel within the engine compartment. The
wiper motor output shaft and crank arm extend
through a clearance hole in the mounting bracket,
where they are connected to a crank arm that drives
the wiper linkage.
²Wiper Relay- The wiper relay is located in a
dedicated receptacle on the lower left surface of the
fuse block underneath the steering column behind
the fuse access panel and the steering column open-
ing panel. The wiper relay is a passive component on
vehicles equipped with the optional automatic wiper
system.
²Wiper, Turn Signals, Engine Start Control
Module- The wiper, turn signals and engine start
control module is integral to the fuse block located
underneath the steering column. The fuse block is
concealed behind the fuse access panel and the steer-
ing column opening panel, where it is secured with
screws to the steering column. The wiper system
functions of this module are passive on vehicles
equipped with the optional automatic wiper system.
Hard wired circuitry connects the wiper and
washer system components to the electrical system of
the vehicle. These hard wired circuits are integral to
several wire harnesses, which are routed throughout
the vehicle and retained by many different methods.
These circuits may be connected to each other, to the
vehicle electrical system and to the wiper and washer
system components through the use of a combination
of soldered splices, splice block connectors, and many
different types of wire harness terminal connectors
and insulators. Refer to the appropriate wiring infor-
mation. The wiring information includes wiring dia-
grams, proper wire and connector repair procedures,
further details on wire harness routing and reten-
tion, as well as pin-out and location views for the
various wire harness connectors, splices and grounds.
OPERATION
The wiper and washer system is designed to pro-
vide the vehicle operator with a convenient, safe, and
reliable means of maintaining visibility through the
windshield glass. The various components of this sys-
tem are designed to convert electrical energy pro-
duced by the vehicle electrical system into the
mechanical action of the wiper blades to wipe the
outside surface of the glass, as well as into the
hydraulic action of the washer system to apply
washer fluid stored in an on-board reservoir to the
area of the glass to be wiped. When combined, these
components provide the means to effectively main-
tain clear visibility for the vehicle operator by remov-
ing excess accumulations of rain, snow, bugs, mud, or
VAWIPERS/WASHERS 8R - 3

(8) Reconnect the battery negative cable.
REMOVAL
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, seat belt
tensioner, or instrument panel component diagno-
sis or service. Disconnect and isolate the battery
negative (ground) cable, then wait two minutes for
the system capacitor to discharge before perform-
ing further diagnosis or service. This is the only
sure way to disable the supplemental restraint sys-
tem. Failure to take the proper precautions could
result in accidental airbag deployment.
(1) Disconnect and isolate the battery negative
cable.
(2) Unsnap the base covers from each other and
remove them from the rear view mirror arm at the
windshield (Fig. 10).
(3) Using a small thin-bladed screwdriver, gently
pry the retaining collar slightly upward while press-
ing the mirror arm downward parallel to the wind-
shield until the mirror arm unsnaps from the
bracket.
(4) Separate and remove the two halves of the
wire cover from the rain sensor pigtail wires.(5) Loosen the screws securing both inner sun
visor hinges to the windshield header.
(6) Pull the headliner down from the windshield
header far enough to pull the rain sensor pigtail wire
connector out from under the headliner.
(7) Remove the anti-rattle felt from the wire con-
nector insulators.
(8) Disconnect the sensor pigtail wire connector
from the roof wire harness connector.
CAUTION: Do not touch the gel-like surface of the
rain sensor or the sensor function may be impaired
and the sensor rendered unusable.
(9) Remove the rain sensor from the center of the
bracket.
INSTALLATION
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, seat belt
tensioner, or instrument panel component diagno-
sis or service. Disconnect and isolate the battery
negative (ground) cable, then wait two minutes for
the system capacitor to discharge before perform-
ing further diagnosis or service. This is the only
sure way to disable the supplemental restraint sys-
tem. Failure to take the proper precautions could
result in accidental airbag deployment.
CAUTION: Do not touch the gel-like surface of the
rain sensor or the sensor function may be impaired
and the sensor rendered unusable.
(1) Position the rain sensor into the center of the
bracket on the windshield (Fig. 10).
(2) Reconnect the sensor pigtail wire connector to
the roof wire harness connector.
(3) Reinstall the anti-rattle felt over the wire con-
nector insulators.
(4) Pull the headliner down from the windshield
header far enough to tuck the rain sensor pigtail
wire connector under the headliner.
(5) Tighten the screws securing both inner sun
visor hinges to the windshield header.
(6) Align and install the two halves of the wire
cover over the rain sensor pigtail wires.
(7) Press the rear view mirror arm upward paral-
lel to the windshield until the mirror arm snaps onto
the bracket.
(8) Align and position the base covers to each
other and snap them over the rear view mirror arm
at the windshield.
(9) Reconnect the battery negative cable.
Fig. 10 Rain Sensor Remove/Install
1 - FELT
2 - CONNECTOR
3 - INNER VISOR HINGE (2)
4 - WIRE COVER
5 - BRACKET
6 - SENSOR
7 - RETAINING COLLAR
8 - BASE COVER
9 - MIRROR
10 - ARM
8R - 14 WIPERS/WASHERSVA

RAIN SENSOR CONTROL MOD-
ULE
DESCRIPTION
The Rain Sensor Control Module (RSCM) is the
primary component of the automatic wiper system
(Fig. 11). The RSCM is secured with two screws and
nuts to a bracket located under the instrument panel
above the throttle pedal within the passenger com-
partment. The rectangular molded plastic housing of
the RSCM has an integral mounting tab on each side
and an integral connector receptacle on one end,
which contains the module terminal pins. These ter-
minal pins connect the RSCM to the vehicle electrical
system through a dedicated take out and connector of
the instrument panel wiring. Concealed and pro-
tected within the RSCM housing is the electronic cir-
cuitry of the module.
The RSCM cannot be repaired and, if damaged or
faulty, the entire module must be replaced.
OPERATION
The microprocessor-based Rain Sensor Control
Module (RSCM) is only used in vehicles equipped
with an optional automatic wiper system. The RSCM
monitors inputs from the ignition switch, the wiper
and washer switch circuitry of the multi-function
switch on the steering column, the park switch
within the wiper motor, and the rain sensor on the
inside of the windshield glass. Based upon these
inputs the RSCM sends the proper control outputs to
the wiper motor and the washer pump motor to pro-
vide all of the requested wiper and washer system
functions.The RSCM operates on battery current received
from a fuse in the fuse block on a fused ignition
switch output (run-start) circuit so that the RSCM
will operate whenever the ignition switch is in the
On or Start positions. The RSCM receives ground at
all times through its connection to the instrument
panel wire harness. It is important to note that the
default condition for the wiper system is automatic
wipers Off; therefore, if no input is received from the
rain sensor by the RSCM, the automatic wipers will
be disabled and the RSCM will default the wiper and
washer system to normal manual operation for con-
tinuous low or high speed wiper or washer mode.
The hard wired RSCM circuits may be diagnosed
using conventional diagnostic tools and methods.
However, conventional diagnostic methods may not
prove conclusive in the diagnosis of the internal cir-
cuitry of the RSCM. Refer to the appropriate wiring
information.
REMOVAL
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, seat belt
tensioner, or instrument panel component diagno-
sis or service. Disconnect and isolate the battery
negative (ground) cable, then wait two minutes for
the system capacitor to discharge before perform-
ing further diagnosis or service. This is the only
sure way to disable the supplemental restraint sys-
tem. Failure to take the proper precautions could
result in accidental airbag deployment.
(1) Disconnect and isolate the battery negative
cable.
(2) Locate the rain sensor control module on a
bracket under the instrument panel above the throt-
tle pedal (Fig. 12).
Fig. 11 Rain Sensor Control Module
1 - RAIN SENSOR CONTROL MODULE
2 - CONNECTOR RECEPTACLE
3 - MOUNTING TAB (2)
VAWIPERS/WASHERS 8R - 15

(3) Cut the tie wrap on the control module (Fig.
13).
(4) Unlock and disconnect the wire harness con-
nector from the module connector receptacle.
(5) Remove the two screws and nuts that secure
the module to the bracket.
(6) Remove the module from the bracket.
INSTALLATION
WARNING: To avoid personal injury or death, on
vehicles equipped with airbags, disable the supple-
mental restraint system before attempting any
steering wheel, steering column, airbag, seat belt
tensioner, or instrument panel component diagno-
sis or service. Disconnect and isolate the battery
negative (ground) cable, then wait two minutes for
the system capacitor to discharge before perform-
ing further diagnosis or service. This is the only
sure way to disable the supplemental restraint sys-
tem. Failure to take the proper precautions could
result in accidental airbag deployment.
(1) Position the rain sensor control module to the
bracket under the instrument panel above the throt-
tle pedal (Fig. 12).
(2) Install and tighten the two screws and nuts
that secure the module to the bracket (Fig. 13).
(3) Reconnect and lock the wire harness connector
to the module connector receptacle.
(4) Install a new tie wrap to secure the wire har-
ness to the control module.
(5) Reconnect the battery negative cable.
WASHER FLUID LEVEL
SWITCH
DESCRIPTION
The optional washer fluid level switch is a single
pole, single throw switch that is integral to a unique
version of the washer pump/motor unit, located rear-
ward facing side of the washer reservoir, which is
located in a dedicated hole on the top of the sump
area near the back of the windshield washer reser-
voir on the right front fender wheel house in the
engine compartment. Only a molded plastic nipple
with a clear vent tube are visible near the top of the
washer pump/motor unit that is equipped with the
optional fluid level switch when it is installed in the
reservoir. The vent tube is routed to and retained in
an integral clip located behind the reservoir filler cap
near the top of the reservoir. This version of the
washer pump/motor unit also has a third terminal
pin in its integral connector receptacle. The washer
fluid level switch cannot be adjusted or repaired. If
faulty or damaged, the entire washer pump/motor
unit must be replaced.
OPERATION
The washer fluid level switch monitors the level of
the washer fluid in the washer reservoir. When the
fluid level in the washer reservoir is at or above the
predetermined minimum, the switch contacts are
open. When the fluid level in the washer reservoir
Fig. 12 Rain Sensor Control Module Location
1 - INSTRUMENT PANEL
2 - RAIN SENSOR CONTROL MODULE
3 - THROTTLE PEDAL
Fig. 13 Rain Sensor Control Module Remove/Install
1 - SCREW (2)
2 - CONNECTOR
3 - NUT (2)
4 - TIE WRAP
5 - MODULE
8R - 16 WIPERS/WASHERSVA

falls below the predetermined minimum, the switch
contacts of the normally open switch close. The
washer fluid level switch is connected to the vehicle
electrical system through the washer pump/motor
unit take out and connector of the vehicle wire har-
ness. The switch receives a path to ground at all
times through another take out of the vehicle wire
harness with a single eyelet terminal connector that
is secured under a ground screw located near the
right headlamp in the engine compartment.
The switch is connected in series between ground
and the washer fluid switch sense input to the Elec-
troMechanical Instrument Cluster (EMIC). When the
switch closes, the EMIC senses the ground on the
washer fluid switch sense circuit. The EMIC is pro-
grammed to respond to this input by illuminating the
washer fluid indicator. The washer fluid level switch
input to the EMIC may be diagnosed using conven-
tional diagnostic tools and methods.
VAWIPERS/WASHERS 8R - 17

The two washer nozzles have integral mounts with
snap features that secure them near the tops of the
two wiper arms on the windshield. The lower surface
of the washer nozzle has an integral barbed nipple
that connects to the washer hose, and three nozzle
orifices are oriented to dispense the washer fluid on
the windshield glass throughout the wiped area of
the glass (Fig. 15). The washer nozzles are con-
structed entirely of molded plastic. The washer noz-
zles 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 the underside of each
washer nozzle below the wiper arm. The three ori-
fices of each nozzle causes the pressurized washer
fluid to be emitted generously in several streams
throughout the travel of the wiper arm to more effec-
tively cover a larger area of the glass to be cleaned.
REMOVAL
(1) Using hand pressure, unsnap the washer noz-
zle from the wiper arm (Fig. 16).
(2) Disconnect the hose from the barbed nipple of
the washer nozzle.
INSTALLATION
(1) Reconnect the hose to the barbed nipple of the
washer nozzle (Fig. 16).
(2) Using hand pressure, slide the washer nozzle
onto the wiper arm until it snaps into place. Be cer-tain the nozzle snap feature is engaged in the locator
hole on the wiper arm.
WASHER PUMP / MOTOR
DESCRIPTION
The washer pump/motor unit is located in a dedi-
cated hole on the top of the sump area near the back
of the windshield washer reservoir on the right front
fender wheel house in the engine compartment (Fig.
17). A small permanently lubricated and sealed elec-
tric motor is coupled to the rotor-type washer pump.
An inlet nipple on the bottom of the pump housing
passes through a rubber grommet seal installed in
the dedicated mounting hole in the washer reservoir.
A small barbed outlet nipple near the bottom of the
pump housing connects the unit to the washer hose.
The washer pump/motor unit is retained on the res-
ervoir by the interference fit between the inlet nipple
and the grommet seal, which is a light press fit. An
integral electrical connector receptacle is located on
the top of the motor housing.
An optional version of the washer pump/motor unit
incorporates an integral washer fluid level switch.
This version can be distinguished from models with-
out the switch by a vent nipple at the top of the
switch housing that is connected to a vent hose that
is retained in an integral clip behind the filler cap
near the top of the reservoir, and by a third terminal
pin in the washer pump/motor connector receptacle.
The washer pump/motor unit cannot be repaired. If
faulty or damaged, the entire washer pump/motor
unit must be replaced.
Fig. 16 Washer Nozzle Remove/Install
1 - WIPER ARM
2 - WASHER NOZZLE
3 - HOSE GUARD
4 - WASHER HOSE
5 - WIPER BLADE
Fig. 17 Washer Pump/Motor
1 - INLET NIPPLE
2 - WASHER PUMP/MOTOR
3 - CONNECTOR RECEPTACLE
4 - VENT NIPPLE (W/FLUID LEVEL SWITCH ONLY)
5 - WASHER FLUID LEVEL SWITCH HOUSING
6 - OUTLET NIPPLE
VAWIPERS/WASHERS 8R - 19

OPERATION
The washer pump/motor unit is connected to the
vehicle electrical system through a single take out
and connector of the vehicle wire harness. The
washer pump/motor is grounded at all times through
a take out of the vehicle wire harness with a single
eyelet terminal connector that is secured under a
ground screw located near the right headlamp in the
engine compartment. The washer pump/motor
receives battery current on a washer switch sense
circuit through the closed contacts of the momentary
washer switch circuitry within the multi-function
switch. When the pump motor is energized, the rotor-
type pump pressurizes the washer fluid and forces it
through the pump outlet nipple, the washer plumb-
ing, and the washer nozzles onto the windshield
glass. The washer pump/motor unit can be diagnosed
using conventional diagnostic tools and methods.
REMOVAL
(1) Disconnect the vehicle wire harness connector
for the washer pump/motor from the motor connector
receptacle (Fig. 18).
(2) Disconnect the washer supply hose from the
barbed outlet nipple of the washer pump/motor and
allow the washer fluid to drain into a clean container
for reuse.(3) If the vehicle is so equipped, disconnect the
washer fluid level switch vent hose from the barbed
vent nipple near the top of the washer pump/motor
unit.
(4) Using hand pressure, firmly grasp and pull the
washer pump out of the rubber grommet seal in the
reservoir. Care must be taken not to damage the res-
ervoir.
(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 inlet nipple of the washer pump to
the rubber grommet seal in the reservoir.
(3) Using hand pressure, press firmly and evenly
on the washer pump until the inlet nipple is fully
seated in the rubber grommet seal in the washer res-
ervoir mounting hole (Fig. 18).
(4) If the vehicle is so equipped, reconnect the
washer fluid level switch vent hose to the barbed
vent nipple at the top of the washer pump/motor
housing.
(5) Reconnect the washer hose to the barbed outlet
nipple of the washer pump.
(6) Reconnect the vehicle wire harness connector
for the washer pump/motor unit to the motor connec-
tor receptacle.
(7) Refill the washer reservoir with the washer
fluid drained from the reservoir during the removal
procedure.
Fig. 18 Washer Pump/Motor Remove/Install
1 - WASHER RESERVOIR
2 - WASHER SUPPLY HOSE
3 - VENT HOSE (W/FLUID LEVEL SWITCH ONLY)
4 - WIRE HARNESS CONNECTOR
5 - WASHER PUMP/MOTOR
8R - 20 WIPERS/WASHERSVA