Chrysler Stratus RHD 1997 Interactive Electronic Service Manual page 172

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ANTILOCK BRAKE SYSTEM–BENDIX ABX-4
DESCRIPTION AND OPERATION
ABS AMBER WARNING LAMP FUNCTION AND
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . 82
ABS BRAKES HYDRAULIC CONTROL UNIT
(HCU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
ABS BRAKING MODE HYDRAULIC CIRCUIT
SOLENOID AND VALVE FUNCTION
ABS COMPONENT ABBREVIATION LIST . . . . . 77
ABS COMPONENTS
ABS MASTER CYLINDER AND POWER BRAKE
VACUUM BOOSTER . . . . . . . . . . . . . . . . . . . 79
ABS OPERATION AND VEHICLE
PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . 78
ANTILOCK BRAKES OPERATION
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . 77
CONTROLLER ANTILOCK BRAKES (CAB) . . . . 82
HYDRAULIC CONTROL UNIT DECAY
SOLENOIDS . . . . . . . . . . . . . . . . . . . . . . . . . 79
HYDRAULIC CONTROL UNIT FLUID SUMPS . . 80
HYDRAULIC CONTROL UNIT PUMP MOTOR
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . 80
HYDRAULIC CONTROL UNIT SHUTTLE
VALVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
PROPORTIONING VALVE
PUMP/MOTOR RELAY OPERATION . . . . . . . . . 80
RELAY BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
SYSTEM RELAY OPERATION . . . . . . . . . . . . . 80
WHEEL SPEED SENSORS
DIAGNOSIS AND TESTING
ABS (DRB) DIAGNOSTIC CONNECTOR
ABS GENERAL DIAGNOSTICS
INFORMATION . . . . . . . . . . . . . . . . . . . . . . . 83
ABS SERVICE PRECAUTIONS
BRAKE FLUID CONTAMINATION . . . . . . . . . . . 85
DESCRIPTION AND OPERATION
ANTILOCK BRAKES OPERATION DESCRIPTION
The purpose of the Antilock Brake System (ABS) is
to prevent wheel lock-up under heavy braking condi-
tions on virtually any type of road surface. Antilock
Braking is desirable because a vehicle which is
stopped without locking the wheels will retain direc-
tional stability and some steering capability. This
allows the driver to retain greater control of the vehi-
cle during heavy braking.
This section of the service manual covers the
description and on car service for the Bendix ABX-4
Brake System. If other service is required on the non
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INDEX
page
DIAGNOSTIC TESTER (DRB) . . . . . . . . . . . . . . 83
DIAGNOSTIC TROUBLE CODE
INFORMATION . . . . . . . . . . . . . . . . . . . . . . . 84
DIAGNOSTICS MANUAL INFORMATION . . . . . 83
HYDRAULIC SYSTEM PROPORTIONING
VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
INTERMITTENT DIAGNOSTIC TROUBLE
CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
SELF DIAGNOSTICS INFORMATION . . . . . . . . 83
TONEWHEEL INSPECTION . . . . . . . . . . . . . . . 84
VEHICLE TEST DRIVE INFORMATION AND
PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . 85
SERVICE PROCEDURES
ABS HYDRAULIC SYSTEM BLEEDING
PROCEDURE INFORMATION . . . . . . . . . . . . 86
BRAKE FLUID LEVEL INSPECTION . . . . . . . . . 86
REMOVAL AND INSTALLATION
ABS HYDRAULIC CONTROL UNIT . . . . . . . . . . 87
CONTROLLER ANTILOCK BRAKES (CAB) . . . . 93
FRONT WHEEL SPEED SENSOR
GENERAL SERVICE CAUTIONS
HYDRAULIC CONTROL UNIT RELAY BOX . . . . 92
HYDRAULIC SYSTEM PROPORTIONING
VALVES
MASTER CYLINDER AND POWER BRAKE
BOOSTER . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
REAR WHEEL SPEED SENSORS . . . . . . . . . . 96
SPECIFICATIONS
BRAKE FASTENER TORQUE
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . 97
SPEED SENSOR TONE WHEEL RUNOUT . . . . 97
WHEEL SPEED SENSOR TO TONE WHEEL
CLEARANCE . . . . . . . . . . . . . . . . . . . . . . . . . 97
ABS related components of the brake system, refer to
the appropriate section in this group of the manual
for the specific service procedure required.
ABS COMPONENT ABBREVIATION LIST
In this section of the service manual several abbre-
viations are used for the components that are in the
Bendix ABX-4 Brake System. These components are
listed below for your reference.
• CAB—Controller Antilock Brake
• HCU—Hydraulic Control Unit
• ABS—Antilock Brake System
• PSI—Pounds per Square Inch (pressure)
• WSS—Wheel Speed Sensor
BRAKES
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