brake fluid CHRYSLER VOYAGER 2001 Service Manual

3.7.6 EXTERIOR LIGHTING BATTERY
SAVER
The BCM monitors the status of, and controls, the
Park Lamps, Headlamps and Fog Lamp relays. If
any exterior lamps are left ON after the ignition is
turned OFF, the BCM will turn them OFF after 3
minutes.
3.7.7 AUTO HEADLAMPS
This feature is available on vehicles equipped
with both the Electrocromatic Mirror (ECM) and
the Compass/Mini-Trip Computer (CMTC). When
the BCM detects a day/night signal from the CMTC,
an ECM is present and Auto Headlamp mode is
selected.
3.8 FRONT CONTROL MODULE
The Front Control Module (FCM) is an electrical
control and interface center located in the engine
compartment. When it is mated to the Power Dis-
tribution Center (PDC), it is referred to as the
Intelligent Power Module (IPM). The IPM, with its
fuses and relays provides power and signal distri-
bution throughout most of the vehicle. The FCM
receives both hard wire and digital electronic inputs
from the vehicle electrical system through the PDC.
Based on these inputs and the ignition switch
position, it provides direct power feeds and relay
control to some of the vehicles' most critical electri-
cal systems.
The Front Control Module provides the following
features:
Controlled power feeds:
²Front airbag system
²Side airbag system
²Headlamp power
²EATX module power (4 speed only)
²Front washer motor
²Rear washer motor
²Brake shift interlock system
Relay controls:
²Fog lamp relay (when equipped)
²Park lamp relay
²Front wiper on relay
²Front wiper high/low relay
²Accessory relay
²Horn relay
²Front & rear blower relay
²Name brand speakers (NBS) relay
²Electronic back light (EBL) run only relay
²Cabin heater relayElectrical inputs:
²Headlamp battery supplies1&2
²Module battery supply
²Power ground
²Ignition switch RUN or START position status
²Ignition switch START only status
²PCI Bus
²Stop lamp switch
²Horn switch
²Back-up switch
²Wiper park switch
²Washer fluid level switch
²Brake fluid level switch
²Ambient temperature sensor
²Right park lamp outage
²Left park lamp outage
²Battery IOD
²Battery (+) connection detection
²Flash reprogramming voltage
3.8.1 CONTROLLED POWER FEEDS
Front airbag system
The FCM provides power to the Occupant Re-
straint Control (ORC) system through two ªfuse-
lessº circuits (ORC RUN/START, and ORC RUN
only). These circuits are electronically controlled
and continuously monitored for malfunctions.
Power is supplied while the ignition switch is in the
RUN and START positions on pin 48 of the FCM
connector, and in the RUN only position on pin 29.
Side airbag system
The FCM provides power to the Side Impact
Airbag Control Module (SIACM) system through
one ªfuselessº circuit. This circuit is electronically
controlled and continuously monitored for malfunc-
tions. Power is supplied in the ignition RUN and
START positions on pin 28 of the FCM connector.
Headlamp power
The headlamp switch is a direct input to the
BCM. The BCM sends a PCI Bus message to the
FCM informing it of a headlamp switch status
change. The FCM then turns on power to the
headlamps through four ªfuselessº circuits. These
circuits are electronically controlled and continu-
ously monitored for malfunctions. Power is supplied
to each filament in a separate circuit (RH low on pin
6, RH high on pin 4, LH low on pin 3 and LH high
on pin 5). For vehicles equipped with Daytime
Running Lamps (DRL), the FCM electronically
steps down the headlamp voltage to provide the
desired illumination.
13
GENERAL INFORMATION

Front and rear blower relay
The blower control switch is part of the Automatic
Temperature Control (ATC) or A/C-Heater Control
Module, (Manual Temp). When the blower switch is
turned on, the ATC or A/C-Heater Control Module
sends a PCI Bus message to the FCM. The front and
rear blower relay is then powered through low side
control on pin 30 of the FCM. The relay provides the
high side to the blower motor, and the blower speed
is governed through low side control in the ATC or
A/C-Heater Control Module. This circuit is electron-
ically controlled and continuously monitored for
malfunctions.
Name Brand Speakers (NBS) relay
The NBS relay operates through the vehicle bus
interface between the radio and the FCM. When the
radio is turned on, the radio sends a PCI Bus
message to the FCM. The NBS relay is then pow-
ered on through low side control on pin 11 of the
FCM. The relay supplies power to the amplified
speaker, and ground is supplied through the radio.
This circuit is electronically controlled and contin-
uously monitored for malfunctions.
Electronic Back Light (EBL) relay
The rear defrost switch is part of the Automatic
Temperature Control or A/C-Heater Control Module
(Manual Temp). When the ignition switch is in the
RUN position and the rear defrost switch is turned
on, the ATC or A/C-Heater Control Module sends a
PCI Bus message to the FCM. The EBL run only
relay is then powered through low side control on
pin 31 of the FCM. The relay provides the high side
to the rear window defrost grid, and ground is
attached to the vehicle body. The FCM will only
allow the rear defrost to operate in the RUN posi-
tion. This circuit is electronically controlled and
continuously monitored for malfunctions.
Cabin Heater Relay
When the ignition is in Run, the FCM monitors
the PCI bus for the Cabin Heater Activation re-
quest. The A/C ± Heater Control Module initiates
this request only when all conditions for Cabin
Heater activation are favorable. The request carries
the status bit that the FCM requires to activate its
Cabin Heater Assist Control output. This output is
a low side driver (coming from FCM pin 15) which
supplies a ground signal to the Cabin Heater (pin
5). When the Cabin Heater receives this ground
signal input, it interprets this as an activation
signal. The FCM low side driver is also capable of
diagnostic sensing. The driver will sense an open
circuit when the driver is off, and will sense a short
to voltage when the driver is on. The FCM will set
DTCs for both of these types of faults. For addi-
tional information, refer to Cabin Heater under
General Information and Diagnostic Procedures in
the manual.3.8.3 ELECTRICAL INPUTS
Headlamp battery supplies1&2Ð12 volt
input on pins 1 and 2. Battery supply voltage for
switching headlamp circuits only.
Module battery supply Ð12 volt input on pin 9.
Battery supply voltage for all other FCM opera-
tions.
Power ground ÐGround source on pin 8 for all
FCM operations.
Ignition switch RUN or START position status
Ð12 volt input on pin 37. Allows the FCM to
determine the ignition switch status for related
FCM operations.
Ignition switch START only status Ð12 volt
input on pin 19. Allows the FCM to discriminate
between RUN/START input and START for related
FCM operations.
PCI Bus ÐApproximately 7.5 volt input on pin 22.
Allows the FCM to communicate with other mod-
ules on the vehicle bus.
Stop lamp Switch status Ð12 volt input on pin
44. Provides for brake shift interlock function.
Horn Switch ÐGround input on pin 17. Primary
means for engaging the horn.
Back-up switch ÐGround input on pin 39. Input
is converted to a PCI Bus status message for use by
other modules.
Wiper park switch ÐGround input on pin 16.
Used to determine park placement of wipers. Also
used as feedback to FCM to determine correct
operating mode of wipers.
Washer fluid level switch ÐGround input to
pull-up on pin 18. Ground is switched into the
circuit when washer bottle fluid level is low.
Brake fluid level switch ÐGround input to
pull-up on pin 36. Ground is switched into the
circuit when brake fluid level is low.
Ambient temperature sensor ÐResistive input
to pull-up on pin 25. Corresponding voltage level is
converted to a PCI Bus message for use by other
modules on the bus.
Right park lamp outage Ð12 volt input on pin
21. Used to determine if right park lamp circuit is
operating properly.
Left park lamp outage Ð12 volt input on pin 41.
Used to determine if left park lamp circuit is
operating properly.
Battery IOD Ð12 volt input on pin 20. The FCM
enters a low power consumption mode when the
ignition is turned OFF. This low current draw
battery supply keeps the microprocessor function-
ing in the low power mode.
Battery (+) connection detection Ð12 volt
input on pin 38. The battery connection on the PDC
incorporates the use of an internal switch to deter-
mine if the connector is properly mated and the
Connector Positive Assurance (CPA) is engaged. If
15
GENERAL INFORMATION

INSTRUMENT CLUSTER - BLACK 13 WAYCAV CIRCUIT FUNCTION
1 E13 20OR/YL PANEL LAMPS DRIVER
2 L160 20WT/TN (LOW
LINE)RIGHT TURN INDICATOR DRIVER
3 G7 20VT/GY (HIGH LINE) LOW OIL PRESSURE INDICATOR DRIVER
4 G3 20VT/LB (HIGH LINE) MALFUNCTION INDICATOR LAMP DRIVER
5 L134 20WT/GY (HIGH
LINE)HIGH BEAM INDICATOR DRIVER
6 A701 16BR/RD FUSED B(+) (HAZARD)
7 Z108 18BK/LG GROUND
8 L161 20WT/LG (LOW
LINE)LEFT TURN INDICATOR DRIVER
9 D25 20WT/VT PCI BUS
10 B25 20DG/WT (RHD) PARK BRAKE SWITCH SENSE
10 B25 16DG/WT (LHD) PARK BRAKE SWITCH SENSE
11 G26 20VT/OR CHIME DRIVER
12 G150 20VT/BR INSTRUMENT CLUSTER WAKE UP SENSE
13 Z18 18BK/LB GROUND
INTELLIGENT POWER MODULE C1 - LT. GREEN/RED 20 WAYCAV CIRCUIT FUNCTION
1 F301 18VT/PK FUSED ACCESSORY RELAY OUTPUT
2- -
3- -
4 L43 18WT/DB LEFT LOW BEAM DRIVER
5 Z344 16BK/TN GROUND
6 L34 16WT/GY RIGHT HIGH BEAM DRIVER
7 W1 18BR/TN WASHER FLUID LEVEL SWITCH SENSE
8 L33 18WT/LG LEFT HIGH BEAM DRIVER
9 G31 18VT/LG (EXCEPT
BASE)AMBIENT TEMPERATURE SENSOR SIGNAL
10 L44 16WT/TN RIGHT LOW BEAM DRIVER
11 F300 18OR/PK FUSED ACCESSORY RELAY OUTPUT
12 - -
13 Z343 18BK/LG GROUND
14 - -
15 L78 18WT/OR FUSED PARK LAMP RELAY OUTPUT (RIGHT)
16 L77 18WT/BR FUSED PARK LAMP RELAY OUTPUT (LEFT)
17 - -
18 G931 18VT/BR (EXCEPT
BASE)AMBIENT TEMPERATURE SENSOR RETURN
19 W20 18BR/YL REAR WASHER PUMP MOTOR CONTROL
20 W10 18BR FRONT WASHER PUMP MOTOR CONTROL
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1044
CONNECTOR PINOUTS

INTELLIGENT POWER MODULE C6 - NATURAL 10 WAYCAV CIRCUIT FUNCTION
1 A101 12VT/RD FUSED B(+)
2 Z117 16BK/WT GROUND
3 Z118 16BK/YL GROUND
4 A110 12OR/RD (POWER
SEAT)FUSED B(+)
5- -
6- -
7 C7 12DB FUSED FRONT BLOWER MOTOR RELAY OUTPUT
8 F307 16LB/PK (BATTERY
POSITION)FUSED B(+)
8 F307 16LB/PK (ACCESSO-
RY RELAY POSITION)FUSED ACCESORY RELAY OUTPUT
9 A113 12WT/RD (POWER
SLIDING DOOR)FUSED B(+)
10 - -
INTELLIGENT POWER MODULE C7 - BLACK/RED 20 WAYCAV CIRCUIT FUNCTION
1 C16 20DB/GY (EXCEPT
BUILT-UP-EXPORT)FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
1 C16 18DB/GY (BUILT-UP-
EXPORT)FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
2 T751 20YL (EXCEPT
BUILT-UP-EXPORT)IGNITION SWITCH OUTPUT (START)
2 T141 20YL/OR (BUILT-UP-
EXPORT)IGNITION SWITCH OUTPUT (START)
3 D25 20WT/VT PCI BUS
4 L13 20WT/YL (BUILT-UP-
EXPORT)HEADLAMP ADJUST SIGNAL
5 K32 18DB/YL (GAS) BRAKE TRANSMISSION SHIFT INTERLOCK SOLENOID CONTROL
6- -
7 W7 20BR/GY FRONT WIPER PARK SWITCH SENSE
8 B20 20DG/OR BRAKE FLUID LEVEL SWITCH SENSE
9 F201 18PK/OR FCM OUTPUT (RUN-START)
10 F214 18PK/LG FCM OUTPUT (RUN-START)
11 A106 20LB/RD FUSED B(+)
12 - -
13 F2 18PK/WT (GAS) FCM OUTPUT (UNLOCK-RUN-START)
14 - -
15 A114 16GY/RD FUSED B(+) (I.O.D.)
16 D23 20WT/BR FLASH PROGRAM ENABLE
17 L50 18WT/TN PRIMARY BRAKE SWITCH SIGNAL
18 X1 16DG/BR (PREMIUM 8
SPEAKER)NAME BRAND SPEAKER RELAY OUTPUT
19 X3 20DG/VT HORN SWITCH SENSE
20 F100 18PK/VT FCM OUTPUT (RUN)
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1047
CONNECTOR PINOUTS

FRONT CONTROL MODULE - BLACK 49 WAYCAV CIRCUIT FUNCTION
1 A1 B(+)
2 A1 B(+)
3 L43 LEFT LOW BEAM DRIVER
4 L34 RIGHT HIGH BEAM DRIVER
5 L33 LEFT HIGH BEAM DRIVER
6 L44 RIGHT LOW BEAM DRIVER
7 - NOT USED
8 Z117, Z118, Z343, Z344 GROUND
9 A1 B(+)
10 FCM 10 HORN RELAY CONTROL
11 FCM 11 NAME BRAND SPEAKER RELAY CONTROL
12 - SPARE
13 FCM 13 PARK LAMP RELAY CONTROL
14 FCM 14 FRONT WIPER ON/OFF RELAY CONTROL
15 C41 (DIESEL) CABIN HEATER ASSIST CONTROL
16 W7 FRONT WIPER PARK SWITCH SENSE
17 X3 HORN SWITCH SENSE
18 W1 WASHER FLUID LEVEL SWITCH SENSE
19 FCM 19 (GAS) IGNITION SWITCH OUTPUT (START)
20 A114 FUSED B(+) (I.O.D.)
21 L78 FUSED PARK LAMP RELAY OUTPUT (RIGHT)
22 D25 PCI BUS
23 G931 AMBIENT TEMPERATURE SENSOR RETURN
24 - SPARE
25 G31 AMBIENT TEMPERATURE SENSOR SIGNAL
26 L13 (RG) HEADLAMP ADJUST SIGNAL
27 F1, F2 FCM OUTPUT (UNLOCK-RUN-START)
28 F214 FCM OUTPUT (RUN-START) (SIACM)
29 F100 FCM OUTPUT (RUN) (ORC)
30 FCM 30 FRONT/REAR BLOWER MOTOR RELAY CONTROL
31 FCM 31 REAR WINDOW DEFOGGER RELAY CONTROL
32 FCM 32 (BUILT-UP-
EXPORT))HEADLAMP WASHER RELAY CONTROL
33 FCM 33 FRONT FOG LAMP RELAY CONTROL
34 FCM 34 FRONT WIPER HIGH/LOW RELAY CONTROL
35 FCM 35 ACCESSORY RELAY CONTROL (RUN-ACC)
36 B20 BRAKE FLUID LEVEL SWITCH SENSE
37 F20 IGNITION SWITCH OUTPUT (RUN-START)
38 A1 B(+)
39 T2 TRS REVERSE SENSE
40 T753 (DIESEL) IGNITION SWITCH OUTPUT (START)
41 L77 FUSED PARK LAMP RELAY OUTPUT (LEFT)
42 D23 FLASH PROGRAM ENABLE
43 Z116 GROUND
44 L50 PRIMARY BRAKE SWITCH SIGNAL
45 W10 FRONT WASHER PUMP MOTOR CONTROL
46 W20 REAR WASHER PUMP MOTOR CONTROL
47 K32 BRAKE TRANSMISSION SHIFT INTERLOCK SOLENOID CONTROL
48 F201 FCM OUTPUT (RUN-START) (ORC)
49 - NOT USED
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1067
CONNECTOR PINOUTS

The cycling of the build and decay valves is
similar to the ABS except that they work to control
wheel spin by applying brakes. ABS function is to
control wheel skid by releasing brakes.
Two pressure relief valves allow excess fluid vol-
ume to return to the reservoir when not used by the
build/decay cycles. These are required because the
pump supplies more volume than the traction con-
trol system requires.
If at any time the brake pedal is applied during a
traction control cycle, the brake lamp switch will
trigger the CAB to switch off the traction control.
The traction control system will be enabled at
each ignition cycle. It may be turned off by depress-
ing the Traction Control Switch. The traction con-
trol system function lamp will illuminate ªTRAC
OFFº immediately upon depressing the traction
control switch button. Only the ªTRACº portion of
the ªTRAC OFFº indicator will illuminate during a
traction control event. If the CAB calculates that
the brake temperatures are high, the traction con-
trol system will become inoperative until a time-out
period has elapsed. When in this thermal protection
mode, the traction control ªTRAC OFFº lamp will
illuminate; however, a fault will not be registered.
3.3 SYSTEM COMPONENTS
²controller antilock brake (CAB)
²vacuum booster
²master cylinder
²ABS integrated electronic control module/
hydraulic control unit (HCU), valve block assem-
bly: 8 valve solenoids (4 inlet valves, 4 outlet
valves, 2 accumulators) 1 motor, 2 pump
²ABS integrated electronic control module with
traction control same as above but has 10 valve
solenoids.
²4 wheel speed sensor/tone wheel assemblies
²ABS warning indicator
²fuses and wiring harness
²fluid reservoir
²TRAC/TRAC OFF indicator
3.3.1 ABS AND BRAKE WARNING
INDICATORS
The amber ABS warning indicator is located in
the instrument cluster. It is used to inform the
driver that the antilock function has been turned
off. The ABS warning indicator is controlled by the
CAB. The CAB controls the lamp with a command
over the PCI bus.
The ABS Warning Indicator will remain lit during
every key cycle until a circuit or component fault is
repaired and the CAB no longer detects the fault.After repair of a sensor signal fault or a pump motor
fault, the CAB must sense all four wheels at 25
km/h (15 mph) before it will extinguish the ABS and
TRAC OFF Indicators.
The Instrument Cluster will illuminate the ABS
Warning Indicator if it loses communication with
the CAB.
The red BRAKE warning indicator is also located
in the instrument cluster. It can be activated in
several ways. Application of the parking brake or a
low fluid signal from the fluid level switch located in
the master cylinder reservoir will cause the indica-
tor to come on.
3.3.2 CONTROLLER ANTILOCK BRAKE
(CAB)
The Controller Antilock Brake (CAB) is a
microprocessor-based device that monitors wheel
speeds and controls the antilock functions. The
CAB contains two microprocessors that receive
identical sensor signals and then independently
process the information. The results are then com-
pared to make sure that they agree. Otherwise, the
CAB will turn off the antilock and turn on the ABS
amber warning indicator.
The primary functions of the CAB are to:
²detect wheel locking tendencies
²control fluid pressure modulation to the brakes
during antilock stop
²monitor the system for proper operation
²manage traction control functions
²provide communication to the DRBIIItwhile in
diagnostic mode
²store diagnostic information in non-volatile memory
The CAB continuously monitors the speed of each
wheel. When a wheel locking tendency is detected,
the CAB will command the appropriate valve to
modulate brake fluid pressure in its hydraulic unit.
Brake pedal position is maintained during an an-
tilock stop by being a closed system with the use of
2 accumulators. The CAB continues to control pres-
sure in individual hydraulic circuits until a wheel
locking tendency is no longer present. The CAB
turns on the pump motor during an antilock stop.
The antilock brake system is constantly moni-
tored by the CAB for proper operation. If the CAB
detects a system malfunction, it can disable the
antilock system and turn on the ABS warning
indicator. If the antilock function is disabled, the
system will revert to standard base brake system
operation.
The CAB inputs include the following:
²diagnostic communication
²four wheel speed sensors
2
GENERAL INFORMATION

²three power feeds: valves, pump and microproces-
sor
²brake switch
²traction control switch
The CAB outputs include the following:
²ABS warning indicator actuation
²12 volts power to wheel speed sensors
²eight valves
²ten valves with traction control
²diagnostic communication
²PCI bus communication
²traction control lamp illumination
3.3.3 HYDRAULIC CONTROL UNIT
The hydraulic control unit (HCU) contains the
valve block assembly, two accumulators, and pump/
motor assembly. The HCU is attached to the CAB.
Valve Block Assembly:The valve block assem-
bly contains valves with four inlet valves and four
outlet valves. The inlet valves are spring-loaded in
the open position and the outlet valves are spring
loaded in the closed position. During an antilock
stop, these valves are cycled to maintain the proper
slip ratio for each wheel. If a wheel detects slip, the
inlet valve is closed to prevent and further pressure
increase. Then the outlet valve is opened to release
the pressure to the accumulators until the wheel is
no longer slipping. Once the wheel is no longer
slipping, the outlet valve is closed and the inlet
valve is opened to reapply pressure. If the wheel is
decelerating within its predetermined limits (prop-
er slip ratio), the inlet valve will close to hold the
pressure constant. On vehicles which are equipped
with a traction control system, there are two addi-
tional valves that isolate the master cylinder and
rear wheels. During a traction control event the
brakes are applied to reduce wheel slippage.
Pump Motor Assembly:The pump motor as-
sembly provides the extra amount of fluid needed
during antilock braking. The pump is supplied fluid
that is released to the accumulators when the outlet
valve is opened during an antilock stop. The pump
is also used to drain the accumulator circuits after
the antilock stop is complete. The pump is operated
by an integral electric motor. This DC-type motor is
controlled by the CAB. The CAB may turn on the
pump motor when an antilock stop is detected. The
pump continues to run during the antilock stop and
is turned off after the stop is complete. Under some
conditions, the pump motor will run to drain the
accumulators during the next drive off. The CAB
monitors the pump motor operation internally.
Accumulators:The accumulators provide tem-
porary fluid storage during an antilock stop and are
drained by the pump motor.
3.3.4 SWITCHES/SENSORS
Master Cylinder:The master cylinder is a stan-
dard tandem compensating port design for ABS and
non ABS systems. Traction control vehicles use a
dual center port master cylinder. For proper trac-
tion control operation the standard master cylinder
must not be used.
A fluid level switch is located in the master
cylinder fluid reservoir. The switch closes when a
low fluid level is detected. The fluid level switch
turns on the brake warning indicator by grounding
the indicator circuit. This switch does not disable
the ABS system.
Wheel Speed Sensors and Tone Wheels:One
active wheel speed sensor (WSS) is located at each
wheel and sends a small signal to the control
module (CAB). This signal is generated when a
toothed sensor ring (tone wheel) passes by a station-
ary wheel speed sensor. The CAB converts the
signals into digital signals for each wheel.
Because of internal circuitry, correct wheel speed
sensor function cannot be determined by a continu-
ity or resistance check through the sensor.
The front wheel speed sensor is attached to a boss
in the steering knuckle. The tone wheel is an
integral part of the front axle shaft. The rear speed
sensor is mounted though the bearing cover and the
rear tone wheel is an integral part of the rear
bearing hub. The wheel speed sensor air gap is not
adjustable. Refer to the service manual for wheel
speed sensor air gap and resistance specifications.
The four wheel speed sensors are serviced indi-
vidually. The front tone wheels are serviced as an
assembly with the outer constant velocity (C.V.)
joint housing. The rear tone wheels are serviced as
an assembly.
Correct antilock system operation is dependent
on tone wheel speed signals from the wheel speed
sensors. The vehicle's wheels and tires should all be
the same size and type to generate accurate signals.
In addition, the tires should be inflated to the
recommended pressure for optimum system opera-
tion. Variation in wheel and tire size or significant
variations in inflation pressure can produce inaccu-
rate wheel speed signals; however, the system will
continue to function when using the mini-spare.
3.3.5 SYSTEM INITIALIZATION
System initialization starts when the key is
turned to ªrunº. At this point, the CAB performs a
complete self-check of all electrical components in
the antilock systems.
Between 8-17 km/h (5-10 mph), a dynamic test is
performed. This will momentarily cycle the inlet
and outlet valves, check wheel speed sensor cir-
cuitry, and run the pump motor at 25 km/h (15
mph). The CAB will try to test the pump motor. If
3
GENERAL INFORMATION

LUBRICANTS AND GREASES
Lubricating grease is rated for quality and usage
by the NLGI. All approved products have the NLGI
symbol (Fig. 7) on the label. At the bottom NLGI
symbol is the usage and quality identification letters.
Wheel bearing lubricant is identified by the letter
ªGº. Chassis lubricant is identified by the latter ªLº.
The letter following the usage letter indicates the
quality of the lubricant. The following symbols indi-
cate the highest quality.
OPERATION
The cooling system is designed around the coolant.
The coolant must accept heat from engine metal, in
the cylinder head area near the exhaust valves and
engine block. Then coolant carries the heat to the
radiator where the tube/fin radiator can transfer the
heat to the air.
WARNING: ANTIFREEZE IS AN ETHYLENE GLYCOL
BASE COOLANT AND IS HARMFUL IF SWAL-
LOWED OR INHALED. IF SWALLOWED, DRINK
TWO GLASSES OF WATER AND INDUCE VOMIT-
ING. IF INHALED, MOVE TO FRESH AIR AREA.
SEEK MEDICAL ATTENTION IMMEDIATELY. DO NOT
STORE IN OPEN OR UNMARKED CONTAINERS.
WASH SKIN AND CLOTHING THOROUGHLY AFTER
COMING IN CONTACT WITH ETHYLENE GLYCOL.
KEEP OUT OF REACH OF CHILDREN. DISPOSE OF
GLYCOL BASE COOLANT PROPERLY, CONTACT
YOUR DEALER OR GOVERNMENT AGENCY FOR
LOCATION OF COLLECTION CENTER IN YOUR
AREA. DO NOT OPEN A COOLING SYSTEM WHEN
THE ENGINE IS AT OPERATING TEMPERATURE OR
HOT UNDER PRESSURE, PERSONAL INJURY CAN
RESULT. AVOID RADIATOR COOLING FAN WHEN
ENGINE COMPARTMENT RELATED SERVICE IS
PERFORMED, PERSONAL INJURY CAN RESULT.
FLUID FILL/CHECK
LOCATIONS
DESCRIPTION
The fluid check/fill points and lubrication locations
are located in each applicable Sections.
MAINTENANCE SCHEDULES
DESCRIPTION
There are two maintenance schedules that show
proper service for your vehicle.
First is Schedule ±A. It lists all the scheduled
maintenance to be performed under ªnormalº operat-
ing conditions.
Second is Schedule ±B. It is a schedule for vehi-
cles that are operated under the following conditions:
²Frequent short trip driving less than 10 miles
(16.2 km)
²Frequent driving in dusty conditions
²Frequent off-road or desert operation
²Frequent trailer towing
²Day and night temperatures are below freezing
²Frequent long periods of engine idling
²Frequent stop and go driving
²More than 50% of your driving is at sustained
high speeds during hot weather, above 90ÉF (32ÉC)*
²Taxi, police or delivery service
²If equipped for and operation with E-85
(ethanol) fuel.
DESCRIPTION
At Each Stop For Fuel
²Check engine oil level and add as required.
²Check windshield washer solvent and add as
required.
Once A Month
²Check tire pressure and look for unusual wear
or damage.
²Check fluid levels of coolant reservoir, brake
master cylinder, power steering and transmission.
Add fluid as required.
²Check all lights and all other electrical items for
correct operation.
At Each Oil Change
²Change oil filter
²Inspect the exhaust system.
²Inspect brake hoses.
²Inspect the CV joints and front suspension com-
ponent boots and seals.
²Rotate the tires at each oil change interval
shown on Schedule ± A (7,500 miles - 12 000 km) or
Fig. 7 NLGI Symbol
1 - WHEEL BEARINGS
2 - CHASSIS LUBRICATION
3 - CHASSIS AND WHEEL BEARINGS
RSLUBRICATION & MAINTENANCE0-7
FLUID TYPES (Continued)

112,500 Miles (180 000 km) or at 90 months
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the brake linings.
120,000 Miles (192 000 km) or at 96 months
²Change the engine oil.
²Replace the engine oil filter.
²Replace the engine air cleaner element (fil-
ter).
²Check and replace the PCV valve, if neces-
sary.*
²Inspect the serpentine drive belt. Not required if
replaced at 75,000, 90,000 or 105,000 miles.
²Inspect the tie rod ends and boot seals.
*This maintenance is recommended by Daimler-
Chrysler Corporation to the owner but is not
required to maintain the emissions warranty.
NOTE: Inspection and service should also be per-
formed anytime a malfunction is observed or sus-
pected. Retain all receipts.
SCHEDULE±B±CHRYSLER TOWN AND
COUNTRY VEHICLES
Follow this schedule if the vehicle is usually oper-
ates under one or more of the following conditions.
²Frequent short trip driving less than 5 miles (8
km)
²Frequent driving in dusty conditions
²Frequent trailer towing
²Day and night temperatures are below freezing
²Frequent long periods of engine idling
²Frequent stop and go driving
²More than 50% of your driving is at sustained
high speeds during hot weather, above 90ÉF (32ÉC)*
²Taxi, police or delivery service
²If equipped for and operation with E-85
(ethanol) fuel.
3,000 Miles (5 000 km)
²Change the engine oil.
²Replace the engine oil filter.
6,000 Miles (10 000 km)
²Change the engine oil.
²Replace the engine oil filter.
9,000 Miles (14 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the brake linings.
12,000 Miles (19 000 km)
²Change the engine oil.
²Replace the engine oil filter.
15,000 Miles (24 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the engine air cleaner element (fil-
ter). Replace as necessary.*
²Change the All Wheel Drive (AWD) power trans-
fer unit fluid. (See the note at the end of Schedule ±
B.)
18,000 Miles (29 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the brake linings.
21,000 Miles (34 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Change the All Wheel Drive (AWD) overrunning
clutch and rear carrier fluid. (See the note at the end
of Schedule ± B.)
24,000 Miles (38 000 km)
²Change the engine oil.
²Replace the engine oil filter.
27,000 Miles (43 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the brake linings.
30,000 Miles (48 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Replace the engine air cleaner element (fil-
ter).
²Inspect the PCV valve, replace as neces-
sary.*
²Change the All Wheel Drive (AWD) power trans-
fer unit fluid. (See the note at the end of Schedule ±
B.)
²Inspect the tie rod ends and boot seals.
33,000 Miles (53 000 km)
²Change the engine oil.
²Replace the engine oil filter.
36,000 Miles (58 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the brake linings.
39,000 Miles (62 000 km)
²Change the engine oil.
²Replace the engine oil filter.
RSLUBRICATION & MAINTENANCE0-9
MAINTENANCE SCHEDULES (Continued)

42,000 Miles (67 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Change the All Wheel Drive (AWD) overrunning
clutch and rear carrier fluid. (See the note at the end
of Schedule ± B.)
45,000 Miles (72 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the engine air cleaner element (fil-
ter). Replace as necessary.*
²Change the All Wheel Drive (AWD) power trans-
fer unit fluid. (See the note at the end of Schedule ±
B.)
²Inspect the brake linings.
48,000 Miles (77 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Drain and refill the automatic transmission fluid
and replace the filter. (See the note at the end of
Schedule ± B.)
51,000 Miles (82 000 km)
²Change the engine oil.
54,000 Miles (86 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the brake linings.
57,000 Miles (91 000 km)
²Change the engine oil.
²Replace the engine oil filter.
60,000 Miles (96 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Replace the engine air cleaner element (fil-
ter).
²Inspect the PCV valve and replace if neces-
sary.*
²Inspect the serpentine drive belt and replace if
necessary.
²Change the All Wheel Drive (AWD) power trans-
fer unit fluid. (See the note at the end of Schedule ±
B.)
²Inspect the tie rod ends and boot seals.
63,000 Miles (101 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the brake linings.
²Change the All Wheel Drive (AWD) overrunning
clutch and rear carrier fluid. (See the note at the end
of Schedule ± B.)
66,000 Miles (106 000 km)
²Change the engine oil.
²Replace the engine oil filter.
69,000 Miles (110 000 km)
²Change the engine oil.
²Replace the engine oil filter.
72,000 Miles (115 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the brake linings.
75,000 Miles (120 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the engine air cleaner element (fil-
ter) and replace as necessary.*
²Replace the spark plugs.
²Replace the ignition cables.
²Inspect the serpentine drive belt and replace if
necessary. This maintenance is not required if belt
was previously replaced.
²Change the All Wheel Drive (AWD) power trans-
fer unit fluid. (See the note at the end of Schedule ±
B.)
78,000 Miles (125 000 km)
²Change the engine oil.
²Replace the engine oil filter.
81,000 Miles (130 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Inspect the brake linings.
84,000 Miles (134 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Change the All Wheel Drive (AWD) overrunning
clutch and rear carrier fluid. (See the note at the end
of Schedule ± B.)
87,000 Miles (139 000 km)
²Change the engine oil.
²Replace the engine oil filter.
90,000 Miles (144 000 km)
²Change the engine oil.
²Replace the engine oil filter.
²Replace the engine air cleaner element (fil-
ter).
²Check the PCV valve and replace if neces-
sary. Not required if previously changed.*
²Inspect the serpentine drive belt and replace if
necessary. This maintenance is not required if belt
was previously replaced.
0 - 10 LUBRICATION & MAINTENANCERS
MAINTENANCE SCHEDULES (Continued)