Egr CHRYSLER VOYAGER 1996 Owner's Manual

engine is operating, the smaller the pulse width on
the oscilloscope.
By counting the pulses and referencing the pulse
from the 60 degree signature notch, the PCM calcu-
lates crankshaft angle (position). In each group of
timing reference notches, the first notch represents
69 degrees before top dead center (BTDC). The sec-
ond notch represents 49 degrees BTDC. The third
notch represents 29 degrees. The last notch in each
set represents 9 degrees before top dead center
(TDC).
The timing reference notches are machined to a
uniform width representing 13.6 degrees of crank-
shaft rotation. From the voltage pulse width the
PCM tells the difference between the timing refer-
ence notches and the 60 degree signature notch. The
60 degree signature notch produces a longer pulse
width than the smaller timing reference notches. If
the camshaft position sensor input switches from
high to low when the 60 degree signature notch
passes under the crankshaft position sensor, the
PCM knows cylinder number one is the next cylinder
at TDC.
The crankshaft position sensor mounts to the
engine block behind the generator, near the oil filter
(Fig. 8).
CAMSHAFT POSITION SENSOR
The PCM determines fuel injection synchronization
and cylinder identification from inputs provided by
the camshaft position sensor and crankshaft position
sensor. From the two inputs, the PCM determines
crankshaft position.The camshaft position sensor attaches to the rear
of the cylinder head (Fig. 2). A target magnet
attaches to the rear of the camshaft and indexes to
the correct position (Fig. 3). The target magnet has
four different poles arranged in an asymmetrical pat-
tern. As the target magnet rotates, the camshaft
position sensor senses the change in polarity (Fig. 4).
The sensor output switch switches from high (5.0
volts) to low (0.30 volts) as the target magnet rotates.
When the north pole of the target magnet passes
under the sensor, the output switches high. The sen-
sor output switches low when the south pole of the
target magnet passes underneath.
INTAKE AIR TEMPERATURE SENSORÐ2.4L
The intake air temperature sensor measures the
temperature of the air as it enters the engine. The
sensor supplies one of the inputs the PCM uses to
determine injector pulse width and spark advance.
The intake air temperature sensor threads into the
intake manifold (Fig. 5).
Fig. 2 Crankshaft Position Sensor
Fig. 3 Target Magnet
Fig. 4 Target Magnet Polarity
NSIGNITION SYSTEM 8D - 17
DESCRIPTION AND OPERATION (Continued)

(4) Disengage park brake release cable case from
groove on end of release handle (Fig. 47).
(5) Disengage cable end pivot from slot on release
handle (Fig. 47).
INSTALLATION
For installation, reverse the above procedures,
MECHANICAL TRANSMISSION RANGE INDICATOR
REMOVAL
(1) Remove instrument cluster.
(2) Remove cluster lens.
(3) Remove screws holding mechanical transmis-
sion range indicator to back of cluster lens.
(4) Remove mechanical transmission range indica-
tor from cluster lens.
INSTALLATION
(1) Position transmission range indicator on clus-
ter lens.
(2) Install mechanical range indicator and attach-
ing screws to back of cluster lens.
(3) Install cluster lens.
(4) Install instrument cluster.
MESSAGE CENTER
REMOVAL
(1) Remove A-pillar trim.
(2) Remove instrument panel top cover. Refer to
instrument panel top cover removal procedures.
(3) Disconnect the wire connector from back of
message center.(4) Remove screws holding message center to
instrument panel top cover.
(5) Remove message center from instrument panel
top cover.
INSTALLATION
(1) Place message center in position on top cover.
(2) Install screws to hold message center to instru-
ment panel top cover.
(3) Connect wire connector into back of message
center.
(4) Install instrument panel top cover.
(5) Install A-pillar trim.
MESSAGE CENTER LAMP
REMOVAL
(1) Remove instrument panel top cover. Refer to
Instrument Panel Top Cover Removal procedures.
(2) Locate the lamp in question (Fig. 48).
(3) Remove lamp and check lamp. If lamp is good
test the power supply to the lamp.
INSTALLATION
For installation, reverse the above procedures.
OUTLET (12 VOLT) BASE
REMOVAL
(1) Look inside and note position of the retaining
bosses (Fig. 49).
(2) Using external snap ring pliers with 90 degree
tips. Insert pliers with tips against bosses and
squeeze forcing bosses out of base.
(3) Pull out the base through mounting ring by
gently rocking pliers. A tool can be made to do the
same. Refer to (Fig. 50).
(4) Disconnect the base wires.
(5) Set base aside. Remove light ring and discon-
nect wire.
INSTALLATION
(1) Position mount ring to the instrument panel
and feed the wires through ring. Index the cap and
the mount ring with the index tab at 9 o'clock to the
key in the instrument panel. Install the ring.
(2) Connect wires to base. Orient base alignment
rib at 11 o'clock to mate the groove in mount ring at
the same location
(3) Push base into the bezel till it locks.
(4) Install 12 volt outlet cap and check operation of
outlet or element.
OVER STEERING COLUMN BEZEL
REMOVAL
(1) Remove the lower steering column cover.
Fig. 47 Park Brake Release Handle
8E - 32 INSTRUMENT PANEL AND SYSTEMSNS
REMOVAL AND INSTALLATION (Continued)

INSTALLATION
For installation, reverse the above procedures.
BODY CONTROL MODULE (BCM)
REMOVAL
(1) Disconnect battery negative cable.
(2) Remove lower steering column cover and knee
blocker reinforcement.
(3) Disconnect two wire connectors from bottom of
Body Control Module (BCM)
(4) Remove bolts holding Junction Block to dash
panel mounting bracket (Fig. 8).
(5) Remove Junction Block from mounting bracket.
(6) Remove screws holding Body Control Module to
Junction Block.(7) Slide Body Control Module downward to disen-
gage guide studs on Junction Block from channels on
BCM mounting bracket.
(8) Remove Body Control Module from Junction
Block.
INSTALLATION
For installation, reverse the above procedures.
CIGAR LIGHTER BASE
REMOVAL
(1) Look inside and note position of the retaining
bosses (Fig. 9).
(2) Using external snap ring pliers with 90 degree
tips. Insert pliers with tips against bosses and
squeeze forcing bosses out of base.
(3) Pull out base, through mounting ring, gently
rocking pliers.
(4) Disconnect the base wires.
(5) Set base aside. Remove light ring and discon-
nect wire.
INSTALLATION
(1) Connect wire to light ring and install ring.
(2) Connect wires to base.
(3) Push base into the bezel till it locks.
(4) Install lighter element and check operation of
element.
Fig. 7 Ash Receiver/Cup Holder Track RHD
Fig. 8 Body Control Module Location
Fig. 9 Cigar Lighter Base Removal
8E - 16 INSTRUMENT PANEL AND SYSTEMSNS/GS
REMOVAL AND INSTALLATION (Continued)

VEHICLE SPEED CONTROL SYSTEM
CONTENTS
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DESCRIPTION AND OPERATION
AUTOMATIC SPEED CONTROL OVERSPEED
REDUCTION........................... 2
POWERTRAIN CONTROL MODULE.......... 2
SERVO CABLE.......................... 2
SPEED CONTROL SERVO.................. 1
SPEED CONTROL SWITCHES.............. 1
STOP LAMP SWITCH..................... 2
VACUUM RESERVOIR.................... 3
VEHICLE SPEED AND DISTANCE............ 3
DIAGNOSIS AND TESTING
CHECKING FOR DIAGNOSTIC CODES........ 3
ELECTRICAL TESTS AT POWERTRAIN
CONTROL MODULE..................... 6OVERSHOOT/UNDERSHOOT FOLLOWING
SPEED CONTROL SET................... 3
ROAD TEST............................ 3
SERVO VACUUM TEST.................... 6
SPEED CONTROL ELECTRICAL TEST........ 4
SPEED CONTROL SWITCH TEST............ 6
STOP LAMP SWITCH TEST................ 6
VACUUM SUPPLY TEST................... 8
VEHICLE SPEED SENSOR................. 8
REMOVAL AND INSTALLATION
POWERTRAIN CONTROL MODULE.......... 9
SPEED CONTROL CABLE.................. 9
SPEED CONTROL SERVO.................. 8
SPEED CONTROL SWITCHES.............. 9
STOP LAMP SWITCH.................... 9
VACUUM RESEROIR..................... 10
VEHICLE SPEED SENSOR................ 10
GENERAL INFORMATION
INTRODUCTION
The speed control system is electronically con-
trolled and vacuum operated. The electronic control
is integrated into the powertrain control module,
located next to battery. The controls are located on
the steering wheel and consist of the ON/OFF, SET,
RESUME/ACCEL, CANCEL and DECEL buttons
(Fig. 1).
DESCRIPTION AND OPERATION
SPEED CONTROL SERVO
The servo unit consists of a solenoid valve body,
and a vacuum chamber. The PCM controls the sole-
noid valve body. The solenoid valve body controls the
application and release of vacuum to the diaphragm
of the vacuum servo. The servo unit cannot be
repaired and is serviced only as a complete assembly.
SPEED CONTROL SWITCHES
There are two separate switch pods that operate
the speed control system. The steering-wheel-
mounted switches use multiplexed circuits to provide
inputs to the PCM for ON, OFF, RESUME, ACCEL-
ERATE, SET, DECEL and CANCEL modes. Refer to
the owner's manual for more information on speed
control switch functions and setting procedures.
When speed control is selected by depressing the
ON switch, the PCM allows a set speed to be stored
in RAM for speed control. To store a set speed,
depress the SET switch while the vehicle is moving
at a speed between 30 and 85 mph. In order for the
speed control to engage, the brakes cannot be
applied, nor can the gear selector be indicating the
transmission is in Park or Neutral.
The speed control can be disengaged manually by:
²Stepping on the brake pedal
Fig. 1 Speed Control Switches
NSVEHICLE SPEED CONTROL SYSTEM 8H - 1

²Depressing the OFF switch
²Depressing the CANCEL switch.
NOTE: Depressing the OFF switch or turning off
the ignition switch will erase the set speed stored
in the PCM.
For added safety,the speed control system is pro-
grammed to disengaged for any of the following con-
ditions:
²An indication of Park or Neutral
²An rpm increase without a VSS signal increase
(indicates that the clutch has been disengaged)
²Excessive engine rpm (indicates that the trans-
mission may be in a low gear)
²The VSS signal increases at a rate of 10 mph
per second (indicates that the co-efficient of friction
between the road surface and tires is extremely low)
²The VSS signal decreases at a rate of 10 mph
per second (indicates that the vehicle may have
decelerated at an extremely high rate)
²If the actual speed is not within 20 mph of the
set speed
The previous disengagement conditions are pro-
grammed for added safety.
Once the speed control has been disengaged,
depressing the ACCEL switch when speed is greater
than 25 mph restores the vehicle to the target speed
that was stored in the PCM.
NOTE: Depressing the OFF switch will erase the
set speed stored in the PCM's RAM.
While the speed control is engaged, the driver can
increase the vehicle speed by depressing the ACCEL
switch. The new target speed is stored in the PCM
when the ACCEL is released. The PCM also has a
9tap-up9feature in which vehicle speed increases at a
rate of approximately 2 mph for each momentary
switch activation of the ACCEL switch. The PCM
also provides a means to decelerate without disen-
gaging speed control. To decelerate from an existing
recorded target speed, depress and hold the COAST
switch until the desired speed is reached, then
release the switch.
The individual switches cannot be repaired. If one
switch fails, the entire switch module must be
replaced.
AUTOMATIC SPEED CONTROL OVERSPEED
REDUCTION
Transmission control software includes an auto-
matic speed control overspeed reduction feature. This
maintains vehicle speed at the selected set point
when descending a grade.
The Transmission Control Module (TCM) first
senses that the speed control is set. If the set speedis exceeded by more than 4 mph (6.5 km/hr) and the
throttle is closed, the TCM causes the transaxle to
downshift to THIRD gear. After downshifting, the
automatic speed control resumes normal operation.
To ensure that an upshift is appropriate after the set
speed is reached, the TCM waits until the speed con-
trol system opens the throttle at least 8 degrees
before upshifting to OVERDRIVE again.
If the driver applies the brakes, canceling auto-
matic speed control operation with the transaxle still
in THIRD gear, the TCM maintains this gear until
the driver opens the throttle at least 8 degrees to
avoid an inappropriate upshift. The upshift is also
delayed for 0.5 seconds after reaching the 8 degrees
throttle opening in anticipation that the driver might
open the throttle enough to require THIRD gear.
This will avoid unnecessary and disturbing transmis-
sion cycling. If the automatic speed control RESUME
feature is used after braking, the upshift is delayed
until the set speed is achieved to reduce cycling and
provide better response.
STOP LAMP SWITCH
Vehicles equipped with the speed control option use
a dual function stop lamp switch. The switch is
mounted on the brake pedal mounting bracket under
the instrument panel. The PCM monitors the state of
the dual function stop lamp switch. Refer to Group 5,
Brakes for more information on stop lamp switch ser-
vice and adjustment procedures.
SERVO CABLE
The speed control servo cable is connected between
the speed control vacuum servo diaphragm and the
throttle body control linkage. This cable causes the
throttle control linkage to open or close the throttle
valve in response to movement of the vacuum servo
diaphragm.
POWERTRAIN CONTROL MODULE
The speed control electronic control circuitry is
integrated into the Powertrain Control Module
(PCM). The PCM is located in the engine compart-
ment. The PCM speed control functions are moni-
tored by the On-Board Diagnostics (OBD). All OBD-
sensed systems are monitored by the PCM. Each
monitored circuit is assigned a Diagnostic Trouble
Code (DTC). The PCM will store a DTC in electronic
memory for any failure it detects. See On-Board
Diagnostic Tests in this group for more information.
The PCM cannot be repaired and must be replaced if
faulty.
USE THE DRB SCAN TOOL TO REPROGRAM
THE NEW PCM WITH THE VEHICLES ORIGI-
NAL IDENTIFICATION NUMBER (VIN) AND
THE ORGINAL VEHICLES MILAGE. IF THIS
8H - 2 VEHICLE SPEED CONTROL SYSTEMNS
DESCRIPTION AND OPERATION (Continued)

INSTALLATION
Transfer speed control cable to replacement speed
control servo. Reverse the preceding operation.
SPEED CONTROL SWITCHES
REMOVAL
(1) Release hood latch and open hood.
(2) Disconnect battery negative cable.
(3) Remove airbag/horn pad from steering wheel,
refer to Group 8M, Restraint Systems for proper pro-
cedures.
(4) Disconnect wire connector from horn switch,
airbag, and speed control switches.
(5) Remove screws holding speed control switch to
airbag/horn pad (Fig. 11).
(6) Separate speed control switch from airbag/horn
pad.
INSTALLATION
Reverse the preceding operation.
STOP LAMP SWITCH
REMOVAL
Remove the switch from the bracket by depressing
the brake pedal and rotating the switch in a counter-
clockwise direction approximately 30 degrees. Pull
the switch rearward and remove from bracket. Dis-
connect wiring harness connector.
INSTALLATION
Before installing the switch, reset the adjustable
switch plunger by pulling on the plunger head until
the plunger reaches the end of its travel. A ratchet-
ing sound will be heard during this procedure.
Connect the wiring harness to the switch. Mount
the switch into the bracket by holding the switch
with the plunger facing forward in car. There is an
index key on the switch that mates with the bracket
slot at the top of the square hole. Align key and push
switch into square hole in bracket while depressing
the brake pedal. Once the switch is seated in the
hole, rotate clockwise approximately 30 degrees to
lock into place. The switch will automatically adjust
when the pedal is released. Pull back on the pedal to
assure correct adjustment.
SPEED CONTROL CABLE
REMOVAL
(1) Release hood latch and open hood.
(2) On vehicles with 3.3/3.8 L engine, remove air
cleaner resonator. Refer to Group 14, Fuel System for
proper procedure.
(3) Disconnect throttle and speed control cable
ends from throttle body (Fig. 8).
(4) Depress lock tabs holding speed control cable
casing to cable mount bracket (Fig. 12).
(5) Remove tie wrap holding vacuum line, throttle
cable, and speed control cable together.
(6) Remove nuts holding speed control cable case
to servo.
(7) Remove cable case from servo.
(8) Remove hairpin clip holding cable end to servo
diaphragm (Fig. 12).
(9) Remove speed control cable.
INSTALLATION
Reverse the preceding operation.
POWERTRAIN CONTROL MODULE
For Removal/Installation refer to Powertrain Con-
trol Module in Group 14, Fuel Injection System.
USE THE DRB SCAN TOOL TO REPROGRAM
THE NEW PCM WITH THE VEHICLES ORIGI-
NAL IDENTIFICATION NUMBER (VIN) AND
THE ORGINAL VEHICLES MILAGE. IF THIS
Fig. 10 Speed Control Servo
Fig. 11 Speed Control Switches
NSVEHICLE SPEED CONTROL SYSTEM 8H - 9
REMOVAL AND INSTALLATION (Continued)

WINDSHIELD WIPERS AND WASHERS
CONTENTS
page page
REAR WIPER AND WASHER................ 9WINDSHIELD WIPERS AND WASHER......... 1
WINDSHIELD WIPERS AND WASHER
INDEX
page page
GENERAL INFORMATION
INTRODUCTION......................... 1
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES................ 1
FAILED PARK SWITCH.................... 2
MULTI-FUNCTION SWITCH................. 4
REMOVAL AND INSTALLATION
MULTI-FUNCTION SWITCH................. 4
WINDSHIELD WASHER BOTTLE............. 4
WINDSHIELD WIPER BLADE ELEMENT....... 6WINDSHIELD WIPER BLADE................ 5
WINDSHIELD WIPER MOTOR............... 6
WIPER ARM............................. 7
WIPER LINKAGE......................... 7
WIPER UNIT............................ 7
CLEANING AND INSPECTION
WIPER BLADES.......................... 8
ADJUSTMENTS
WIPER ARM ALIGNMENT.................. 8
GENERAL INFORMATION
INTRODUCTION
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAG, SEE GROUP 8M, RESTRAINT SYSTEMS FOR
SAFETY PRECAUTIONS. DISCONNECT THE NEGA-
TIVE CABLE FROM THE BATTERY BEFORE SER-
VICING COMPONENTS INVOLVING THE AIRBAG
SYSTEM. ACCIDENTAL DEPLOYMENT OF AIRBAG
AND PERSONAL INJURY CAN RESULT.
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 40 amp fuse (9)
located in the Power Distribution Center (PDC) in
the engine compartment. The windshield washer cir-
cuit is protected by a 6 amp fuse (9) located in the
Junction Block. The wiper motor has permanent
magnetic fields. The speeds are determined by cur-
rent flow to the appropriate set of brushes inside the
motor. The current flow is controlled by the multi-
function switch stalk mounted wiper switch, high
speed/low speed relays located in the PDC. The speed
sensitive intermittent wiper is controlled by the BodyControl 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, and the time delay is not
adjusted, 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.
DIAGNOSIS AND TESTING
DIAGNOSTIC PROCEDURES
The windshield wiper system operates in several
modes:
²Low and high speed normal wipe
²Speed sensitive intermittent wipe
²Wipe after wash
²Pulse wipe
²Park (switch OFF)
The windshield wiper circuits are continuously
monitored and controlled by the Body Control Mod-
NSWINDSHIELD WIPERS AND WASHERS 8K - 1

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 scan tool (DRB). Refer to proper
Body Diagnostic Procedures manual for DTC descrip-
tions 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
chart.
FAILED PARK SWITCH
If the wiper park switch has failed the windshield
wipers will operate as follows:SWITCH OFFÐWipers stop in current location
regardless of the park signal.
INTERMITTENT MODEÐWipers operate at low
speed for one or more extra wipes or continuously.
LOW SPEEDÐWipers operate at low speed.
HIGH SPEEDÐWipers operate at high speed.
PULSE WIPEÐWipers will not operate.
WIPE AFTER WASHÐWipers operate at low
speed in any mode setting. Wipers operate only while
wash button is depressed with switch in OFF mode,
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 Diagnosis
table.
WIPER SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
WIPER BLADES DO NOT PARK
PROPERLY1. WIPER ARMS IMPROPERLY
PARKED.
2. WIPER ARMS ARE LOOSE ON
PIVOT SHAFT.
3. MOTOR CRANK LOOSE AT
OUTPUT SHAFT.1. REMOVE WIPER ARMS AND
REPARK. REFER TO WIPER ARM
REMOVAL AND INSTALLATION.
2. REMOVE WIPER ARM AND
REPARK. REFER TO WIPER ARM
REMOVAL AND INSTALLATION.
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.
MOTOR STOPS IN ANY
POSITION WHEN THE SWITCH
IS TURNED OFF1. OPEN PARK CIRCUIT. 1. 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 IT DOES NOT PARK.
MOTOR WILL NOT STOP WHEN
THE SWITCH IS TURNED OFF1. FAULTY SWITCH.
2. LOCK OF DYNAMIC BRAKE ON
WET GLASS.1. CHECK SWITCH IN LOW, HIGH
AND INTERMITTENT POSITION.
2. ENSURE PARK SWITCH HAS
CLEAN GROUND.
WIPER BLADES SLAP AGAINST
COWL SCREEN OR WINDOW
MOLDINGS.1. WIPER ARMS ARE PARKED
INCORRECTLY.1. PARK WIPER ARMS. REFER TO
WIPER ARM ADJUSTMENT.
8K - 2 WINDSHIELD WIPERS AND WASHERSNS
DIAGNOSIS AND TESTING (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

(5) Rock vehicle side-to-side three times and allow
suspension to stabilize.
(6) Jounce front suspension three times by pushing
downward on front bumper and releasing.
(7) Measure the distance from the center of head-
lamp lens to the floor. Transfer measurement to the
alignment screen (with tape). Use this line for
up/down adjustment reference.
(8) Place a tape line 130 mm below and parallel to
the center of headlamp line.
(9) Measure distance from the centerline of the
vehicle to the center of each headlamp being aligned.
Transfer measurements to screen (with tape) to each
side of vehicle centerline. Use these lines for left/
right adjustment reference.HEADLAMP ADJUSTMENT
A properly aimed low beam headlamp will project a
high intensity light pattern on the screen with the
horizontal cut-off line aligned with the tape line 130
mm (5.12 in.) below the headlamp centerline (Fig. 1).
The intersection of the horizontal and 15 degree cut-
off lines in the projected pattern should align to the
intersection of the headlamp centerline vertical tape
line and the tape line 130 mm (5.12 in.) below the
headlamp horizontal centerline. The high beams on a
vehicle with aero headlamps cannot be aligned. The
high beam pattern should be correct when the low
beams are aligned properly.
Fig. 1 Headlamp Alignment Screen
8L - 6 LAMPSNS/GS
ADJUSTMENTS (Continued)