warning DODGE RAM 2002 Service Repair Manual

TURNING LOOP HGT
ADJUSTER KNOB
REMOVAL
WARNING: DURING AND FOLLOWING ANY SEAT
BELT SERVICE, CAREFULLY INSPECT ALL SEAT
BELTS, BUCKLES, MOUNTING HARDWARE, AND
RETRACTORS FOR PROPER INSTALLATION,
OPERATION, OR DAMAGE. REPLACE ANY BELT
THAT IS CUT, FRAYED, OR TORN. STRAIGHTEN
ANY BELT THAT IS TWISTED. TIGHTEN ANY
LOOSE FASTENERS. REPLACE ANY BELT THAT
HAS A DAMAGED OR INOPERATIVE BUCKLE OR
RETRACTOR. REPLACE ANY BELT THAT HAS A
BENT OR DAMAGED LATCH PLATE OR ANCHOR
PLATE. NEVER ATTEMPT TO REPAIR A SEAT BELT
COMPONENT. ALWAYS REPLACE DAMAGED OR
FAULTY SEAT BELT COMPONENTS WITH THE COR-
RECT, NEW AND UNUSED REPLACEMENT PARTS
LISTED IN THE MOPAR PARTS CATALOG.
(1) Unsnap and lift the seat belt turning loop cover
to expose the anchor screw that secures the turning
loop to the height adjuster.
(2) Using the head of the turning loop anchor
screw as a fulcrum, carefully pry the knob from the
height adjuster lever with a suitable trim tool (Fig.
25).
INSTALLATION
WARNING: DURING AND FOLLOWING ANY SEAT
BELT SERVICE, CAREFULLY INSPECT ALL SEAT
BELTS, BUCKLES, MOUNTING HARDWARE, AND
RETRACTORS FOR PROPER INSTALLATION,
OPERATION, OR DAMAGE. REPLACE ANY BELT
THAT IS CUT, FRAYED, OR TORN. STRAIGHTEN
ANY BELT THAT IS TWISTED. TIGHTEN ANY
LOOSE FASTENERS. REPLACE ANY BELT THAT
HAS A DAMAGED OR INOPERATIVE BUCKLE ORRETRACTOR. REPLACE ANY BELT THAT HAS A
BENT OR DAMAGED LATCH PLATE OR ANCHOR
PLATE. NEVER ATTEMPT TO REPAIR A SEAT BELT
COMPONENT. ALWAYS REPLACE DAMAGED OR
FAULTY SEAT BELT COMPONENTS WITH THE COR-
RECT, NEW AND UNUSED REPLACEMENT PARTS
LISTED IN THE MOPAR PARTS CATALOG.
(1) Fold and snap the seat belt turning loop cover
back into place over the anchor screw that secures
the turning loop to the adjuster.
(2) Position the height adjuster knob to the seat
belt turning loop height adjuster lever.
(3) Using hand pressure, push the knob firmly and
evenly onto the lever until it is fully engaged.
Fig. 25 Turning Loop Height Adjuster Knob
Removal - Typical
1 - KNOB
2 - ADJUSTER LEVER
3 - SEAT BELT TURNING LOOP
4 - TRIM TOOL (SNAP-ON A179A)
8O - 30 RESTRAINTSBR/BE

SPEED CONTROL
TABLE OF CONTENTS
page page
SPEED CONTROL
DESCRIPTION
DESCRIPTION - SPEED CONTROL SYSTEM . 1
DESCRIPTION - VEHICLE SPEED INPUT....2
OPERATION - SPEED CONTROL SYSTEM....2
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - VACUUM
SUPPLY TEST.........................3
DIAGNOSIS AND TESTING - ROAD TEST....4
SPECIFICATIONS
TORQUE - SPEED CONTROL SYSTEM.....4
CABLE
DESCRIPTION..........................4
OPERATION............................4
REMOVAL
REMOVAL - GAS ENGINES...............4
REMOVAL - DIESEL WITH AUTO. TRANS. . . . 5
INSTALLATION
INSTALLATION - GAS ENGINES...........5
INSTALLATION - DIESEL WITH AUTO.
TRANS...............................6SPEED CONTROL SERVO
DESCRIPTION..........................6
OPERATION............................6
REMOVAL
REMOVAL............................6
REMOVAL - DIESEL WITH AUTO. TRANS. . . . 9
INSTALLATION
INSTALLATION.......................11
INSTALLATION - DIESEL WITH AUTO.
TRANS..............................12
SWITCH
DESCRIPTION.........................12
OPERATION...........................12
REMOVAL.............................13
INSTALLATION.........................14
VACUUM RESERVOIR
DESCRIPTION.........................14
REMOVAL.............................14
INSTALLATION.........................15
SPEED CONTROL
DESCRIPTION
DESCRIPTION - SPEED CONTROL SYSTEM
Gas Engines and/or Diesel With Automatic Trans.
The speed control system is operated by the use of
a cable and a vacuum controlled servo. Electronic
control of the speed control system is integrated into
the Powertrain Control Module (PCM). The controls
consist of two steering wheel mounted switches. The
switches are labeled: ON/OFF, RES/ACCEL, SET,
COAST, and CANCEL.
The system is designed to operate at speeds above
30 mph (50 km/h).
WARNING: THE USE OF SPEED CONTROL IS NOT
RECOMMENDED WHEN DRIVING CONDITIONS DO
NOT PERMIT MAINTAINING A CONSTANT SPEED,
SUCH AS IN HEAVY TRAFFIC OR ON ROADS THATARE WINDING, ICY, SNOW COVERED, OR SLIP-
PERY.
Diesel With Manual Trans.
The speed control system is fully electronically con-
trolled by the Engine Control Module (ECM).A
cable and a vacuum controlled servo are not
used if the vehicle is equipped with a manual
transmission and a diesel engine. This is a ser-
vo-less system.The controls consist of two steering
wheel mounted switches. The switches are labeled:
ON/OFF, RES/ACCEL, SET, COAST, and CANCEL.
The system is designed to operate at speeds above
30 mph (50 km/h).
WARNING: THE USE OF SPEED CONTROL IS NOT
RECOMMENDED WHEN DRIVING CONDITIONS DO
NOT PERMIT MAINTAINING A CONSTANT SPEED,
SUCH AS IN HEAVY TRAFFIC OR ON ROADS THAT
ARE WINDING, ICY, SNOW COVERED, OR SLIP-
PERY.
BR/BESPEED CONTROL 8P - 1

Once the speed control has been disengaged,
depressing the ACCEL switch restores the vehicle to
the target speed that was stored in the PCM's RAM.
NOTE: Depressing the OFF switch will erase the set
speed stored in the PCM's RAM.
If, while the speed control is engaged, the driver
wishes to increase vehicle speed, the PCM is pro-
grammed for an acceleration feature. With the
ACCEL switch held closed, the vehicle accelerates
slowly to the desired speed. The new target speed is
stored in the PCM's RAM when the ACCEL switch is
released. The PCM also has a9tap-up9feature in
which vehicle speed increases at a rate of approxi-
mately 2 mph for each momentary switch activation
of the ACCEL switch.
The PCM also provides a means to decelerate with-
out disengaging 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 ON, OFF switch oper-
ates two components: the PCM's ON, OFF input, and
the battery voltage to the brake switch, which powers
the speed control servo.
Diesel With Manual Trans.
When speed control is selected by depressing the
ON, OFF switch, the Engine Control Module (ECM)
allows a set speed to be stored in its RAM for speed
control. To store a set speed, depress the SET switch
while the vehicle is moving at a speed between
approximately 35 and 85 mph. In order for the speed
control to engage, the brakes cannot be applied.
The speed control can be disengaged manually by:
²Stepping on the brake pedal.
²Depressing the OFF switch.
²Depressing the CANCEL switch.
The speed control can be disengaged also by any of
the following conditions:
²The vehicle speed 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).
²Depressing the clutch pedal.
²Excessive engine rpm (indicates that the trans-
mission may be in a low gear).
²The vehicle speed 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 restores the vehicle to
the target speed that was stored in the ECM's RAM.
NOTE: Depressing the OFF switch will erase the set
speed stored in the ECM's RAM.
If, while the speed control is engaged, the driver
wishes to increase vehicle speed, the ECM is pro-
grammed for an acceleration feature. With the
ACCEL switch held closed, the vehicle accelerates
slowly to the desired speed. The new target speed is
stored in the ECM's RAM when the ACCEL switch is
released. The ECM also has a9tap-up9feature in
which vehicle speed increases at a rate of approxi-
mately 2 mph for each momentary switch activation
of the ACCEL switch.
The ECM also provides a means to decelerate with-
out disengaging 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 ON, OFF switch oper-
ates two components: the ECM's ON, OFF input, and
the battery voltage to the brake switch, which powers
the speed control servo.
REMOVAL
WARNING: BEFORE BEGINNING ANY AIRBAG SYS-
TEM COMPONENT REMOVAL OR INSTALLATION,
REMOVE AND ISOLATE THE NEGATIVE (-)
CABLE(S) FROM THE BATTERY. THIS IS THE ONLY
SURE WAY TO DISABLE THE AIRBAG SYSTEM.
THEN WAIT TWO MINUTES FOR SYSTEM CAPACI-
TOR TO DISCHARGE BEFORE FURTHER SYSTEM
SERVICE. FAILURE TO DO THIS COULD RESULT IN
ACCIDENTAL AIRBAG DEPLOYMENT AND POSSI-
BLE INJURY.
(1) Disconnect and isolate negative battery
cable(s).
(2) Remove airbag module. Refer to 8, Restraint
Systems for procedures.
(3) Remove switch-to-steering wheel mounting
screws (Fig. 20).
(4) Remove switch.
(5) Remove electrical connector at switch.
BR/BESPEED CONTROL 8P - 13
SWITCH (Continued)

POWER-UP MODE
When the armed VTSS senses that the battery has
been disconnected and reconnected, it enters its pow-
er-up mode. In the power-up mode the alarm system
remains armed following a battery failure or discon-
nect. If the VTSS was armed prior to a battery dis-
connect or failure, the technician or vehicle operator
will have to actively or passively disarm the alarm
system after the battery is reconnected. The pow-
er-up mode will also apply if the battery goes dead
while the system is armed, and battery jump-starting
is attempted. The engine no-run feature will prevent
the engine from starting until the alarm system has
been actively or passively disarmed. The VTSS will
be armed until the technician or vehicle operator has
actively or passively disarmed the alarm system. If
the VTSS is in the disarmed mode prior to a battery
disconnect or failure, it will remain disarmed after
the battery is reconnected or replaced, or if jump-
starting is attempted.
TAMPER ALERT
The VTSS tamper alert feature will sound the horn
three times upon disarming, if the alarm was trig-
gered and has since timed-out (about fifteen min-
utes). This feature alerts the vehicle operator that
the VTSS alarm was activated while the vehicle was
unattended.
DIAGNOSIS AND TESTING - VEHICLE THEFT
SECURITY SYSTEM
The VTSS-related hard wired inputs to and out-
puts from the high-line or premium Central Timer
Module (CTM) may be diagnosed and tested using
conventional diagnostic tools and procedures. Refer
to the appropriate wiring information. The wiring
information includes wiring diagrams, proper wire
and connector repair procedures, further details on
wire harness routing and retention, as well as pin-
out and location views for the various wire harness
connectors, splices and grounds.
However, conventional diagnostic methods may not
prove conclusive in the diagnosis of the CTM, the
Powertrain Control Module (PCM), or the Chrysler
Collision Detection (CCD) data bus network. In order
to obtain conclusive testing of the VTSS, the CTM,
the PCM, and the CCD data bus network must also
be checked. The most reliable, efficient, and accurate
means to diagnose the VTSS requires the use of a
DRBIIItscan tool. Refer to the appropriate diagnos-
tic information. The DRBIIItscan tool can provide
confirmation that the CCD data bus network is func-
tional, that all of the electronic modules are sending
and receiving the proper messages over the CCD
data bus, and that these modules are receiving the
proper hard wired inputs and responding with theproper hard wired outputs needed to perform their
functions. See the ªVehicle Theft Security Systemº
menu item on the DRBIIItscan tool.
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.
VTSS INDICATOR
DESCRIPTION
The Vehicle Theft Security System (VTSS) indica-
tor consists of a red Light-Emitting Diode (LED)
located on the electronic circuit board of the Compass
Mini-Trip Computer (CMTC) within the overhead
console. The LED extends through a hole in the
CMTC lens located near the forward end of the over-
head console housing near the windshield.
The VTSS indicator cannot be adjusted or repaired
and, if faulty or damaged, the entire CMTC unit
must be replaced. (Refer to 8 - ELECTRICAL/OVER-
HEAD CONSOLE/COMPASS/MINI-TRIP COM-
PUTER - DESCRIPTION).
OPERATION
The Vehicle Theft Security System (VTSS) indica-
tor gives a visible indication of the VTSS arming sta-
tus. One side of Light-Emitting Diode (LED) in the
VTSS indicator is connected to battery current
through a fused B(+) circuit and a fuse in the Junc-
tion Block (JB), so the indicator remains functional
regardless of the ignition switch position. The other
side of the LED is hard wired to the Central Timer
Module (CTM), which controls the operation of the
VTSS indicator by pulling this side of the LED cir-
cuit to ground. When the VTSS arming is in
progress, the CTM will flash the LED rapidly on and
off for about fifteen seconds. When the VTSS has
been successfully armed, the CTM will flash the LED
on and off continually at a much slower rate until
the VTSS has been disarmed. The VTSS indicator
can be diagnosed using conventional diagnostic tools
and methods.
BR/BEVEHICLE THEFT SECURITY 8Q - 3
VEHICLE THEFT SECURITY (Continued)

DIAGNOSIS AND TESTING - VTSS INDICATOR
The diagnosis found here addresses an inoperative
Vehicle Theft Security System (VTSS) indicator con-
dition. If the problem being diagnosed is related to
indicator accuracy, be certain to confirm that the
problem is with the indicator and not with an inop-
erative VTSS. (Refer to 8 - ELECTRICAL/VEHICLE
THEFT SECURITY SYSTEM- DIAGNOSIS AND
TESTING). If no VTSS problem is found, the follow-
ing procedure will help to locate a short or open in
the VTSS indicator control circuit. Refer to the
appropriate wiring information. The wiring informa-
tion includes wiring diagrams, proper wire and con-
nector repair procedures, details of wire harness
routing 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) Check the fused B(+) fuse (Fuse 12 - 10
ampere) in the Junction Block (JB). If OK, go to Step
2. If not OK, repair the shorted circuit or component
as required and replace the faulty fuse.(2) Check for battery voltage at the fused B(+) fuse
(Fuse 12 - 10 ampere) in the JB. If OK, go to Step 3.
If not OK, repair the open fused B(+) circuit between
the JB and the Power Distribution Center (PDC) as
required.
(3) Disconnect and isolate the battery negative
cable. Disconnect the body wire harness connector for
the Compass Mini-Trip Computer (CMTC) from the
CMTC connector receptacle. Reconnect the battery
negative cable. Check for battery voltage at the fused
B(+) circuit cavity of the body wire harness connector
for the CMTC. If OK, go to Step 4. If not OK, repair
the open fused B(+) circuit between the CMTC indi-
cator and the JB as required.
(4) Disconnect and isolate the battery negative
cable. Disconnect the instrument panel wire harness
connector (Connector C2) for the Central Timer Mod-
ule (CTM) from the CTM connector receptacle. Check
for continuity between the VTSS indicator driver cir-
cuit cavity of the body wire harness connector for the
CMTC and a good ground. There should be no conti-
nuity. If OK, go to Step 5. If not OK, repair the
shorted VTSS indicator driver circuit between the
CMTC and the CTM as required.
(5) Check for continuity between the VTSS indica-
tor driver circuit cavities of the instrument panel
wire harness connector (Connector C2) for the CTM
and the body wire harness connector for the CMTC.
There should be continuity. If OK, replace the faulty
CMTC indicator. If not OK, repair the open VTSS
indicator driver circuit between the CMTC and the
CTM as required.
8Q - 4 VEHICLE THEFT SECURITYBR/BE
VTSS INDICATOR (Continued)

However, these tests may not prove conclusive in the
diagnosis of this system on models equipped with a
high-line or premium Central Timer Module (CTM).
In order to obtain conclusive testing of the wiper sys-
tem on models with a high-line or premium CTM, the
Chrysler Collision Detection (CCD) data bus network
and all of the electronic modules that provide inputs
to or receive outputs from the wiper system compo-
nents must be checked. The most reliable, efficient,
and accurate means to diagnose the wiper system on
models with a high-line or premium CTM requires
the use of a DRBIIItscan tool. Refer to the appro-
priate diagnostic information. The DRBIIItscan tool
can provide confirmation that the CCD data bus is
functional, that all of the electronic modules are
sending and receiving the proper messages on the
CCD data bus, and that the wiper relay is being sent
the proper hard wired outputs by the CTM for it to
perform its wiper system functions.
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) Check the fused ignition switch output (run-
acc) fuse (Fuse6-25ampere) in the Junction Block
(JB). If OK, go to Step 2. If not OK, repair the
shorted circuit or component as required and replace
the faulty fuse.
(2) Turn the ignition switch to the On position.
Check for battery voltage at the fused ignition switch
output (run-acc) fuse (Fuse6-25ampere) in the JB.
If OK, go to Step 3. If not OK, repair the open fused
ignition switch output (run-acc) circuit between the
JB and the ignition switch as required.
(3) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Disconnect the instrument panel wire harness con-
nector for the multi-function switch from the switch
connector receptacle. Reconnect the battery negative
cable. Turn the ignition switch to the On position.
Check for battery voltage at the fused ignition switch
output (run-acc) circuit cavity of the instrument
panel wire harness connector for the multi-function
switch. If OK, go to Step 4. If not OK, repair theopen fused ignition switch output circuit between the
multi-function switch and the JB as required.
(4) If the problem being diagnosed involves only
the intermittent wipe feature, go to Step 5. If the
problem being diagnosed involves all wiper modes, or
only the Low and/or High speed modes, go to Step 7.
(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
(CTM) from the CTM connector receptacle. Check for
continuity between the wiper switch mode sense cir-
cuit cavities of the instrument panel wire harness
connector for the multi-function switch and the
instrument panel wire harness connector (Connector
C1) for the CTM. There should be continuity. If OK,
go to Step 6. If not OK, repair the open wiper switch
mode sense circuit between the multi-function switch
and the CTM as required.
(6) Check for continuity between the wiper switch
mode signal circuit cavities of the instrument panel
wire harness connector for the multi-function switch
and the instrument panel wire harness connector
(Connector C1) for the CTM. There should be conti-
nuity. If OK, proceed to the diagnosis for the wiper
relay. (Refer to 8 - ELECTRICAL/WIPERS/WASH-
ERS/WIPER RELAY - DIAGNOSIS AND TESTING).
If not OK, repair the open wiper switch mode signal
circuit between the multi-function switch and the
CTM as required.
(7) Check for continuity between the two wiper
switch low speed output circuit cavities of the instru-
ment panel wire harness connector for the multi-
function switch. There should be continuity. If OK, go
to Step 8. If not OK, repair the open wiper switch
low speed output circuit between the two cavities of
the instrument panel wire harness connector for the
multi-function switch as required.
(8) Test the multi-function switch continuity.
(Refer to 8 - ELECTRICAL/LAMPS/LIGHTING -
EXTERIOR/MULTI-FUNCTION SWITCH - DIAG-
NOSIS AND TESTING). If the multi-function switch
tests OK, reconnect the instrument panel wire har-
ness connector for the multi-function switch to the
switch connector receptacle and go to Step 9. If not
OK, replace the faulty multi-function switch and test
the wiper system operation again. If still not OK, go
to Step 9.
(9) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Measure the resistance between the headlamp and
dash wire harness ground wire for the wiper motor
and a good ground. The meter should read zero
ohms. If OK, go to Step 10. If not OK, repair the
open ground circuit to ground (G100) as required.
8R - 4 WIPERS/WASHERSBR/BE
WIPERS/WASHERS (Continued)

(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)

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)

8W-01 WIRING DIAGRAM INFORMATION
TABLE OF CONTENTS
page page
WIRING DIAGRAM INFORMATION
DESCRIPTION
DESCRIPTION - HOW TO USE WIRING
DIAGRAMS...........................1
DESCRIPTION - CIRCUIT INFORMATION....4
DESCRIPTION - CIRCUIT FUNCTIONS......4
DESCRIPTION - SECTION IDENTIFICATION
AND INFORMATION....................6
DESCRIPTION - CONNECTOR, GROUND
AND SPLICE INFORMATION..............6
WARNINGS - GENERAL...................7
DIAGNOSIS AND TESTING - WIRING
HARNESS............................7
STANDARD PROCEDURE
STANDARD PROCEDURE -
ELECTROSTATIC DISCHARGE (ESD)
SENSITIVE DEVICES...................8
STANDARD PROCEDURE - TESTING OF
VOLTAGE POTENTIAL...................8
STANDARD PROCEDURE - TESTING FOR
CONTINUITY..........................9STANDARD PROCEDURE - TESTING FOR A
SHORT TO GROUND...................9
STANDARD PROCEDURE - TESTING FOR A
SHORT TO GROUND ON FUSES
POWERING SEVERAL LOADS............9
STANDARD PROCEDURE - TESTING FOR A
VOLTAGE DROP.......................9
SPECIAL TOOLS
WIRING/TERMINAL.....................9
CONNECTOR
REMOVAL.............................10
INSTALLATION.........................10
DIODE
REMOVAL.............................13
INSTALLATION.........................13
TERMINAL
REMOVAL.............................13
INSTALLATION.........................13
WIRE
STANDARD PROCEDURE - WIRE SPLICING . . 13
WIRING DIAGRAM
INFORMATION
DESCRIPTION
DESCRIPTION - HOW TO USE WIRING
DIAGRAMS
DaimlerChrysler Corporation wiring diagrams are
designed to provide information regarding the vehi-
cles wiring content. In order to effectively use the
wiring diagrams to diagnose and repair
DaimlerChrysler Corporation vehicles, it is important
to understand all of their features and characteris-
tics.
Diagrams are arranged such that the power (B+)
side of the circuit is placed near the top of the page,
and the ground (B-) side of the circuit is placed near
the bottom of the page (Fig. 1).All switches, components, and modules are shown
in the at rest position with the doors closed and the
key removed from the ignition (Fig. 2).
Components are shown two ways. A solid line
around a component indicates that the component is
complete. A dashed line around the component indi-
cates that the component is being shown is not com-
plete. Incomplete components have a reference
number to indicate the page where the component is
shown complete.
It is important to realize that no attempt is made
on the diagrams to represent components and wiring
as they appear on the vehicle. For example, a short
piece of wire is treated the same as a long one. In
addition, switches and other components are shown
as simply as possible, with regard to function only.
BR/BE8W-01 WIRING DIAGRAM INFORMATION 8W - 01 - 1

WARNINGS - GENERAL
WARNINGSprovide information to prevent per-
sonal injury and vehicle damage. Below is a list of
general warnings that should be followed any time a
vehicle is being serviced.
WARNING:: ALWAYS WEAR SAFETY GLASSES FOR
EYE PROTECTION.
WARNING: USE SAFETY STANDS ANYTIME A PRO-
CEDURE REQUIRES BEING UNDER A VEHICLE.
WARNING: BE SURE THAT THE IGNITION SWITCH
ALWAYS IS IN THE OFF POSITION, UNLESS THE
PROCEDURE REQUIRES IT TO BE ON.
WARNING: SET THE PARKING BRAKE WHEN
WORKING ON ANY VEHICLE. AN AUTOMATIC
TRANSMISSION SHOULD BE IN PARK. A MANUAL
TRANSMISSION SHOULD BE IN NEUTRAL.
WARNING: OPERATE THE ENGINE ONLY IN A
WELL-VENTILATED AREA.
WARNING: KEEP AWAY FROM MOVING PARTS
WHEN THE ENGINE IS RUNNING, ESPECIALLY THE
FAN AND BELTS.
WARNING: TO PREVENT SERIOUS BURNS, AVOID
CONTACT WITH HOT PARTS SUCH AS THE RADIA-
TOR, EXHAUST MANIFOLD(S), TAIL PIPE, CATA-
LYTIC CONVERTER AND MUFFLER.
WARNING: DO NOT ALLOW FLAME OR SPARKS
NEAR THE BATTERY. GASES ARE ALWAYS
PRESENT IN AND AROUND THE BATTERY.
WARNING: ALWAYS REMOVE RINGS, WATCHES,
LOOSE HANGING JEWELRY AND AVOID LOOSE
CLOTHING.
DIAGNOSIS AND TESTING - WIRING HARNESS
TROUBLESHOOTING TOOLS
When diagnosing a problem in an electrical circuit
there are several common tools necessary. These tools
are listed and explained below.
²Jumper Wire - This is a test wire used to con-
nect two points of a circuit. It can be used to bypass
an open in a circuit.WARNING: NEVER USE A JUMPER WIRE ACROSS
A LOAD, SUCH AS A MOTOR, CONNECTED
BETWEEN A BATTERY FEED AND GROUND.
²Voltmeter - Used to check for voltage on a cir-
cuit. Always connect the black lead to a known good
ground and the red lead to the positive side of the
circuit.
CAUTION: Most of the electrical components used
in today's vehicles are Solid State. When checking
voltages in these circuits, use a meter with a 10 -
megohm or greater impedance rating.
²Ohmmeter - Used to check the resistance
between two points of a circuit. Low or no resistance
in a circuit means good continuity.
CAUTION: Most of the electrical components used
in today's vehicles are Solid State. When checking
resistance in these circuits use a meter with a 10 -
megohm or greater impedance rating. In addition,
make sure the power is disconnected from the cir-
cuit. Circuits that are powered up by the vehicle's
electrical system can cause damage to the equip-
ment and provide false readings.
²Probing Tools - These tools are used for probing
terminals in connectors (Fig. 5). Select the proper
size tool from Special Tool Package 6807, and insert
it into the terminal being tested. Use the other end
of the tool to insert the meter probe.
INTERMITTENT AND POOR CONNECTIONS
Most intermittent electrical problems are caused
by faulty electrical connections or wiring. It is also
possible for a sticking component or relay to cause a
problem. Before condemning a component or wiring
assembly, check the following items.
²Connectors are fully seated
²Spread terminals, or terminal push out
Fig. 5 PROBING TOOL
1 - SPECIAL TOOL 6801
2 - PROBING END
BR/BE8W-01 WIRING DIAGRAM INFORMATION 8W - 01 - 7
WIRING DIAGRAM INFORMATION (Continued)