2003 CHRYSLER CARAVAN brakes

(9) Remove the disc brake caliper to adapter guide
pin bolts (Fig. 110).
(10) Remove rear caliper from adapter using the
following procedure. First rotate front of caliper up
from the adapter. Then pull the rear of the caliper
and the outboard brake shoe anti-rattle clip out from
under the rear abutment on the adapter (Fig. 111).(11) Support caliper to prevent the weight of the
caliper from damaging the flexible brake hose (Fig.
112).
Fig. 109 Locking Out Automatic Adjuster
1 - PARK BRAKE CABLE
2 - REAR BODY OUTRIGGER BRACKET
3 - LOCKING PLIERS
Fig. 110 Removing Caliper Guide Pin Bolts
1 - DISC BRAKE CALIPER
2 - ADAPTER
3 - AXLE
4 - GUIDE PIN BOLTS
5 - DRIVESHAFT (AWD MODELS ONLY)
Fig. 111 Removing/Installing Caliper
1 - LIFT THIS END OF CALIPER AWAY FROM ADAPTER FIRST
2 - DISC BRAKE CALIPER
3 - ADAPTER ABUTMENT
4 - OUTBOARD BRAKE SHOE HOLD DOWN CLIP
5 - OUTBOARD BRAKE SHOE
6 - ROTOR
7 - ADAPTER
Fig. 112 Correctly Supported Caliper
1 - WIRE
2 - CALIPER
3 - ADAPTER
4 - ROTOR
5 - INNER FENDER
5 - 68 BRAKES - BASERS
SHOES - PARKING BRAKE (Continued)
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(12) Remove the rotor from the hub/bearing.
(13) Remove the park brake cable mounting bolt to
adapter.
(14) Remove the end of the park brake cable from
the actuator lever on the adapter (Fig. 113).
(15) Remove the end of the park brake cable from
the adapter. Park brake cable is removed from
adapter using a 1/2 wrench slipped over the park
brake cable retainer as show in (Fig. 114) to com-
press the locking tabs on the park brake cable
retainer.(16) AWD only - Remove ABS wheel speed sensor
head from hub/bearing (Fig. 115).
(17) FWD only - Remove the ABS wheel speed sen-
sor from the hub/bearing in the following fashion:
(a) Remove secondary (yellow) retaining clip at
rear of wheel speed sensor head (Fig. 116).
(b) Push up on metal retaining clip (Fig. 116)
until it bottoms. This will release wheel speed sen-
sor head from hub and bearing. While holding
metal clip up, pull back on wheel speed sensor
head removing it from hub and bearing.
(c) Remove wheel speed sensor from hub/bear-
ing.
Fig. 113 Park Brake Cable Attachment To Actuator
1 - ADAPTER
2 - PARK BRAKE CABLE
3 - ACTUATOR
4 - AXLE
5 - DRIVESHAFT
6 - PARK BRAKE CABLE RETAINER
7 - HORSESHOE CLIP
Fig. 114 Park Brake Cable Removal From Adapter
1 - DRIVESHAFT
2 - 1/2º WRENCH
3 - PARK BRAKE CABLE
4 - PARK BRAKE CABLE RETAINER
5 - ADAPTER
Fig. 115 Speed Sensor Attaching Bolt (AWD)
1 - ADAPTER
2 - TONE WHEEL
3 - WHEEL SPEED SENSOR
4 - AXLE
5 - BOLT
6 - DRIVESHAFT
Fig. 116 Sensor Connection At Hub And Bearing
1 - SECONDARY SENSOR RETAINING CLIP
2 - METAL SENSOR RETAINING CLIP
3 - HUB AND BEARING
RSBRAKES - BASE5-69
SHOES - PARKING BRAKE (Continued)
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(18) Remove the hub/bearing-to-axle mounting
bolts (Fig. 117).
(19) Remove the hub/bearing (Fig. 118).
CAUTION: Corrosion may occur between the hub/
bearing and the axle flange. If this occurs, the hub/
bearing will be difficult to remove from the axle and
disc brake caliper adapter. If the hub/bearing will
not come out by pulling on it by hand, don't not
pound on it with a hammer. Pounding on the hub/
bearing will damage it. To remove a hub/bearing
that is corroded in place, lightly tap the disc brakecaliper adapter using a soft-face hammer. This will
remove both the caliper adapter and hub/bearing
together from the axle. With a helper supporting the
caliper adapter in his hands, position Remover,
Special Tool 8214-1, on the cast housing of hub/
bearing (Fig. 119). Do not position the special tool
on the inner race of hub/bearing. Lightly strike the
Remover with a hammer to remove the hub/bearing
from the caliper adapter.
(20) Remove the adapter from the rear axle.
(21) Mount the adapter in a vise using the anchor
boss for the park brake cable (Fig. 120).
Fig. 117 Hub/Bearing Mounting Bolts (AWD Shown)
1 - DRIVESHAFT
2 - MOUNTING BOLTS
3 - AXLE
4 - MOUNTING BOLTS
5 - ADAPTER
Fig. 118 Hub/Bearing Removal/Installation (AWD
Shown)
1 - PARK BRAKE BRAKE SHOE
2 - OUTER C/V JOINT
3 - HUB/BEARING
4 - PARK BRAKE BRAKE SHOE
5 - STUB SHAFT
Fig. 119 Hub/Bearing Removal From Caliper Adapter
1 - SPECIAL TOOL 8214-1
2 - PARK BRAKE CABLE
3 - DISC BRAKE CALIPER ADAPTER
4 - HUB/BEARING
Fig. 120 Adapter Mounted In Vise
1 - ADAPTER
2 - PARK BRAKE CABLE BOSS
3 - VISE
4 - PARK BRAKE BRAKE SHOES
5 - 70 BRAKES - BASERS
SHOES - PARKING BRAKE (Continued)
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(22) Remove the lower return spring (Fig. 121)
from the leading and trailing park brake shoes.
(23) Remove the hold down spring and pin (Fig.
122) from the leading park brake shoe.
(24) Remove the adjuster (Fig. 123) from the lead-
ing and trailing park brake shoe.
(25) Remove the leading park brake shoe (Fig.
124) from the adapter. Leading brake shoe is
removed by rotating the bottom of the brake shoe
inward (Fig. 124) until the top of the brake shoe can
be removed from the brake shoe anchor. Then removethe upper return springs (Fig. 124) from the leading
brake shoe.
(26) Remove the upper return springs (Fig. 125)
from the trailing park brake shoe.
(27) Remove the hold down spring and pin (Fig.
126) from the trailing park brake shoe.
(28) Remove the trailing park brake shoe from the
adapter.
(29) Remove the park brake shoe actuator from
the adapter and inspect for signs of abnormal wear
and binding at the pivot point.
Fig. 121 Lower Return Spring
1 - ADAPTER
2 - LEADING PARK BRAKE SHOE
3 - RETURN SPRING
4 - TRAILING PARK BRAKE SHOE
Fig. 122 Leading Brake Shoe Hold Down Pin And
Spring
1 - ADAPTER
2 - LEADING PARK BRAKE SHOE
3 - ALLEN WRENCH
4 - HOLD DOWN SPRING/PIN
Fig. 123 Brake Shoe Adjuster
1 - LEADING PARK BRAKE SHOE
2 - ADJUSTER
3 - TRAILING PARK BRAKE SHOE
Fig. 124 Primary Brake Shoe Remove/Install
1 - PARK BRAKE ACTUATOR
2 - ANCHOR
3 - LEADING PARK BRAKE SHOE
4 - UPPER RETURN SPRINGS
5 - TRAILING PARK BRAKE SHOE
RSBRAKES - BASE5-71
SHOES - PARKING BRAKE (Continued)
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INSTALLATION
(1) Install park brake shoe actuator into adapter.
(2) Install the trailing brake shoe on the adapter.
NOTE: When the hold down pin is installed, the
long part of the hold down pin is to be positioned
strait up and down. This will ensure that the hold
down pin is correctly engaged with the adapter.
(3) Install the hold down spring and pin (Fig. 126)
on the trailing park brake shoe.(4) Install the upper return springs (Fig. 125) on
the trailing park brake shoe.
(5) Install the upper return springs on the leading
park brake shoe (Fig. 124). Then position the top of
the leading park brake shoe at the upper anchor and
rotate the bottom of the shoe outward until correctly
installed on the adapter.
(6) Install the adjuster (Fig. 123) between the
leading and trailing park brake shoe.
NOTE: When the hold down pin is installed, the
long part of the hold down pin is to be positioned
strait up and down. This will ensure that the hold
down pin is correctly engaged with the adapter.
(7) Install the hold down spring and pin (Fig. 122)
on the leading park brake shoe.
(8) Install the lower return spring (Fig. 121) on
the leading and trailing park brake shoes.When
installing the return spring, it is to be installed
behind the park brake shoes (Fig. 121).
(9) Install the 4 mounting bolts for the adapter
and hub/bearing into the bolt holes in the axle.
(10) Position the adapter on the 4 mounting bolts
installed in the rear axle (Fig. 127).
(11) Install the hub/bearing on the stub shaft of
outer C/V joint (AWD only) and into the end of the
axle. (Fig. 118).
(12) In a progressive crisscross pattern, tighten
the 4 hub/bearing mounting bolts until the hub/bear-
ing is squarely seated against the axle. Then tighten
the hub/bearing mounting bolts to a torque of 129
N´m (95 ft. lbs.).
Fig. 125 Upper Return Springs
1 - TRAILING PARK BRAKE SHOE
2 - ADAPTER
3 - PARK BRAKE ACTUATOR
4 - UPPER RETURN SPRINGS
Fig. 126 Trailing Brake Shoe Hold Down Pin And
Spring
1 - HOLD DOWN SPRING PIN
2 - ADAPTER
3 - PARK BRAKE ACTUATOR
4 - TRAILING PARK BRAKE SHOE
5 - ALLEN WRENCH
Fig. 127 Adapter Installed On Mounting Bolts (AWD
Shown)
1 - DRIVESHAFT OUTER C/V JOINT
2 - MOUNTING BOLTS
3 - ADAPTER
4 - PARK BRAKE SHOES
5 - MOUNTING BOLTS
5 - 72 BRAKES - BASERS
SHOES - PARKING BRAKE (Continued)
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(13) AWD only - Install the wheel speed sensor on
the hub/bearing and adapter. Install the wheel speed
sensor attaching bolt (Fig. 115). Tighten the wheel
speed sensor attaching bolt to a torque of 12 N´m
(105 in. lbs).
(14) FWD only - Install the wheel speed sensor in
the following fashion:
(a) If metal wheel speed sensor retaining clip is
not in the neutral installed position on hub and
bearing cap, install from the bottom, if necessary,
and push clip upward until it snaps into position.
(b) Install wheel speed sensor head into rear of
hub and bearing aligning index tab with the notch
in the top of the mounting hole. Push the sensor in
until it snaps into place on the metal retaining
clip.
(c) Install secondary (yellow) retaining clip over
wheel speed sensor head and engage the tabs on
each side.
(15) Install the park brake cable into its mounting
hole in the adapter.Be sure all the locking tabs
on the park brake cable retainer are expanded
out to ensure the cable will not pull out of the
adapter.
(16) Install the end of the park brake cable on the
park brake actuator lever (Fig. 113).
(17) Attach park brake cable to adapter using
mounting bolt.
(18) Remove the locking pliers (Fig. 109) from the
front park brake cable.
(19) Adjust the park brake drum-in-hat brake
shoes. (Refer to 5 - BRAKES/PARKING BRAKE/
SHOES - ADJUSTMENTS).
(20) Install the rotor on the hub/bearing.
(21) Carefully lower caliper and brake shoes over
rotor and onto the adapter using the reverse proce-
dure for removal (Fig. 111).
CAUTION: When installing guide pin bolts extreme
caution should be taken not to crossthread the cal-
iper guide pin bolts.
(22) Install the caliper guide pin bolts (Fig. 110).
Tighten the guide pin bolts to a torque of 35 N´m (26
ft. lbs.).
(23) AWD only - Clean all foreign material off the
threads of the outer C/V joint stub shaft. Install the
washer and hub nut (Fig. 108) on the stub shaft of
the outer C/V joint.
(24) AWD only - Set the parking brake.
(25) AWD only - Tighten the hub nut to a torque of
244 N´m (180 ft. lbs.).
(26) AWD only - Install the spring washer (Fig.
107) on the stub shaft of the outer C/V joint.
(27) AWD only - Install the nut retainer and cotter
pin (Fig. 106) on the stub shaft of the outer C/V joint.(28) Install the wheel and tire assembly. Tighten
the wheel mounting stud nuts in proper sequence
until all nuts are torqued to half specification. Then
repeat the tightening sequence to the full specified
torque of 135 N´m (100 ft. lbs.).
(29) Lower vehicle.
(30) Fully apply and release the park brake pedal
one time. This will seat and correctly adjust the park
brake cables.
CAUTION: Before moving vehicle, pump the brake
pedal several times to insure the vehicle has a firm
brake pedal to adequately stop vehicle.
(31) Road test the vehicle and make several stops
to wear off any foreign material on the brakes and to
seat the brake shoe linings.
ADJUSTMENTS
ADJUSTMENT - PARKING BRAKE SHOES
CAUTION: Before adjusting the park brake shoes be
sure that the park brake pedal is in the fully
released position. If park brake pedal is not in the
fully released position, the park brake shoes can
not be accurately adjusted.
(1) Raise vehicle.
(2) Remove tire and wheel.
(3) Remove disc brake caliper from caliper adapter
(Fig. 128). (Refer to 5 - BRAKES/HYDRAULIC/ME-
CHANICAL/DISC BRAKE CALIPERS - REMOVAL).
(4) Remove rotor from hub/bearing.
Fig. 128 Disc Brake Caliper
1 - DISC BRAKE CALIPER
2 - ADAPTER
3 - AXLE
4 - GUIDE PIN BOLTS
5 - DRIVESHAFT (AWD MODELS ONLY)
RSBRAKES - BASE5-73
SHOES - PARKING BRAKE (Continued)
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NOTE: When measuring the brake drum diameter,
the diameter should be measured in the center of
the area in which the park brake shoes contact the
surface of the brake drum.
(5) Using Brake Shoe Gauge, Special Tool C-3919,
or equivalent,accuratelymeasure the inside diam-
eter of the park brake drum portion of the rotor (Fig.
129).
(6) Using a ruler that reads in 64th of an inch,
accurately read the measurement of the inside diam-
eter of the park brake drum from the special tool
(Fig. 130).
(7) Reduce the inside diameter measurement of
the brake drum that was taken using Special Tool
C-3919 by 1/64 of an inch. Reset Gauge, Brake Shoe,
Special Tool C-3919 or the equivalent used, so that
the outside measurement jaws are set to the reduced
measurement (Fig. 131).(8) Place Gauge, Brake Shoe, Special Tool C-3919,
or equivalent over the park brake shoes. The special
tool must be located diagonally across at the top of
one shoe and bottom of opposite shoe (widest point)
of the park brake shoes.
(9) Using the star wheel adjuster, adjust the park
brake shoes until the lining on the park brake shoes
just touches the jaws on the special tool.
(10) Repeat step 8 above and measure shoes in
both directions.
(11) Install brake rotor on hub and bearing.
(12) Rotate rotor to verify that the park brake
shoes are not dragging on the brake drum. If park
brake shoes are dragging, remove rotor and back off
star wheel adjuster one notch and recheck for brake
shoe drag against drum. Continue with the previous
step until brake shoes are not dragging on brake
drum.
(13) Install disc brake caliper on caliper adapter
(Fig. 128). (Refer to 5 - BRAKES/HYDRAULIC/ME-
CHANICAL/DISC BRAKE CALIPERS - INSTALLA-
TION).
(14) Install wheel and tire.
(15) Tighten the wheel mounting nuts in the
proper sequence until all nuts are torqued to half the
specified torque. Then repeat the tightening sequence
to the full specified torque of 129 N´m (95 ft. lbs.).
(16) Lower vehicle.
(17) Apply and release the park brake pedal one
time. This will seat and correctly adjust the park
brake cables.
CAUTION: Before moving vehicle, pump brake
pedal several times to ensure the vehicle has a firm
enough pedal to stop the vehicle.
(18) Road test the vehicle to ensure proper func-
tion of the vehicle's brake system.
Fig. 129 Measuring Park Brake Drum Diameter
Fig. 130 Reading Park Brake Drum Diameter
1 - SPECIAL TOOL C-3919
2 - RULER
Fig. 131 Setting Gauge To Park Brake Shoe
Measurement
1 - RULER
2 - SPECIAL TOOL C-3919
5 - 74 BRAKES - BASERS
SHOES - PARKING BRAKE (Continued)
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BRAKES - ABS
TABLE OF CONTENTS
page page
BRAKES - ABS
DESCRIPTION
DESCRIPTION - ANTILOCK BRAKE
SYSTEM............................75
DESCRIPTION - ANTILOCK BRAKE
SYSTEM (EXPORT)....................75
DESCRIPTION - ELECTRONIC VARIABLE
BRAKE PROPORTIONING...............75
DESCRIPTION - TRACTION CONTROL
SYSTEM............................76
OPERATION
OPERATION - ANTILOCK BRAKE SYSTEM . . 76
OPERATION - ELECTRONIC VARIABLE
BRAKE PROPORTIONING...............77
OPERATION - TRACTION CONTROL
SYSTEM............................77
CAUTION
CAUTIONS..........................78
STANDARD PROCEDURE - ANTILOCK BRAKE
SYSTEM BLEEDING...................78
SPECIFICATIONS
ABS FASTENER TORQUE...............79
TONE WHEEL RUNOUT................79
WHEEL SPEED SENSOR AIR GAP........79
FRONT WHEEL SPEED SENSOR
REMOVAL.............................79
INSTALLATION.........................80
REAR WHEEL SPEED SENSOR - AWD
REMOVAL.............................80INSTALLATION.........................80
REAR WHEEL SPEED SENSOR - FWD
REMOVAL.............................81
INSTALLATION.........................81
TONE WHEEL
INSPECTION - TONE WHEEL..............82
TRACTION CONTROL SWITCH
DIAGNOSIS AND TESTING - TRACTION
CONTROL SWITCH....................82
HYDRAULIC/MECHANICAL
OPERATION - HYDRAULIC CIRCUITS AND
VALVES .............................83
HCU (HYDRAULIC CONTROL UNIT)
DESCRIPTION.........................89
OPERATION...........................89
ICU (INTEGRATED CONTROL UNIT)
DESCRIPTION.........................89
OPERATION...........................90
REMOVAL
REMOVAL - LHD......................90
REMOVAL - RHD......................91
DISASSEMBLY - ICU....................93
ASSEMBLY - ICU.......................94
INSTALLATION
INSTALLATION - LHD..................94
INSTALLATION - RHD..................95
BRAKES - ABS
DESCRIPTION
DESCRIPTION - ANTILOCK BRAKE SYSTEM
This section covers the physical and operational
descriptions and the on-car service procedures for the
Mark 20e Antilock Brake System and the Mark 20e
Antilock Brake System with traction control.
The purpose of the antilock brake system (ABS) is
to prevent wheel lockup under braking conditions on
virtually any type of road surface. Antilock braking is
desirable because a vehicle that is stopped without
locking the wheels retains directional stability and
some steering capability. This allows the driver to
retain greater control of the vehicle during braking.
DESCRIPTION - ANTILOCK BRAKE SYSTEM
(EXPORT)
Four-wheel disc antilock brakes are standard on all
models. The Mark 20e antilock brake system is used
on all models. Depending on whether the vehicle is a
left-hand drive (LHD) or right-hand drive (RHD)
model, the integrated control unit (ICU) is located in
one of two locations. On LHD models, the ICU is
mounted above the front suspension cradle/cross-
member below the master cylinder. On RHD models,
the ICU is located behind the front suspension cra-
dle/crossmember on the left side of the vehicle.
DESCRIPTION - ELECTRONIC VARIABLE
BRAKE PROPORTIONING
Vehicles equipped with ABS use electronic variable
brake proportioning (EVBP) to balance front-to-rear
braking. The EVBP is used in place of a rear propor-
RSBRAKES - ABS5-75
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