Chrysler 1997 Stratus Convertible RHD Service Manual page 167

JX
ANTILOCK BRAKE SYSTEM–ALLIED SIGNAL ABX-4
DESCRIPTION AND OPERATION
ABS AMBER WARNING LAMP FUNCTION AND
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . 69
ABS BRAKES HYDRAULIC CONTROL UNIT
(HCU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
ABS BRAKING MODE HYDRAULIC CIRCUIT
SOLENOID AND VALVE FUNCTION
ABS COMPONENT ABBREVIATION LIST . . . . . 65
ABS COMPONENTS
ABS OPERATION AND VEHICLE
PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . 66
ANTILOCK BRAKES OPERATION
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . 65
CONTROLLER ANTILOCK BRAKES (CAB) . . . . 69
HYDRAULIC CONTROL UNIT DECAY
SOLENOIDS . . . . . . . . . . . . . . . . . . . . . . . . . 67
HYDRAULIC CONTROL UNIT FLUID SUMPS . . 67
HYDRAULIC CONTROL UNIT PUMP MOTOR
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . 67
HYDRAULIC CONTROL UNIT SHUTTLE
VALVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
PROPORTIONING VALVE
PUMP/MOTOR RELAY OPERATION . . . . . . . . . 67
RELAY BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
SYSTEM RELAY OPERATION . . . . . . . . . . . . . 67
WHEEL SPEED SENSORS
DIAGNOSIS AND TESTING
ABS (DRB) DIAGNOSTIC CONNECTOR
ABS GENERAL DIAGNOSTICS
INFORMATION . . . . . . . . . . . . . . . . . . . . . . . 70
ABS SERVICE PRECAUTIONS
BRAKE FLUID CONTAMINATION . . . . . . . . . . . 72
DIAGNOSTIC TESTER (DRB) . . . . . . . . . . . . . . 70
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 Allied Signal
ABX-4 Brake System. If other service is required on
the non ABS related components of the brake system,
. . . . . . . 70
. . . . . . . . . . . . . . . . . . . . 66
. . . . . . . . . . . . . . . . 68
. . . . . . . . . . . . . . . 68
. . . . . 70
. . . . . . . . . . . . 72
INDEX
page
DIAGNOSTIC TROUBLE CODE
INFORMATION . . . . . . . . . . . . . . . . . . . . . . . 71
DIAGNOSTICS MANUAL INFORMATION . . . . . 70
HYDRAULIC SYSTEM PROPORTIONING
VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
INTERMITTENT DIAGNOSTIC TROUBLE
CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
SELF DIAGNOSTICS INFORMATION . . . . . . . . 70
TONEWHEEL INSPECTION . . . . . . . . . . . . . . . 71
VEHICLE TEST DRIVE INFORMATION AND
PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . 72
SERVICE PROCEDURES
ABS HYDRAULIC SYSTEM BLEEDING
PROCEDURE INFORMATION . . . . . . . . . . . . 73
BRAKE FLUID LEVEL INSPECTION . . . . . . . . . 73
REMOVAL AND INSTALLATION
ABS HYDRAULIC CONTROL UNIT . . . . . . . . . . 74
CONTROLLER ANTILOCK BRAKES (CAB) . . . . 79
FRONT WHEEL SPEED SENSOR
GENERAL SERVICE CAUTIONS
HYDRAULIC CONTROL UNIT RELAY BOX . . . . 78
HYDRAULIC SYSTEM PROPORTIONING
VALVES
MASTER CYLINDER AND POWER BRAKE
BOOSTER . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
REAR WHEEL SPEED SENSORS . . . . . . . . . . 82
SPECIFICATIONS
BRAKE FASTENER TORQUE SPECIFICATIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
SPEED SENSOR TONE WHEEL RUNOUT . . . . 83
WHEEL SPEED SENSOR TO TONE WHEEL
CLEARANCE . . . . . . . . . . . . . . . . . . . . . . . . . 83
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
Allied Signal ABX-4 Brake System. These compo-
nents are listed below for your reference.
• CAB—Controller Antilock Brake (Electronic)
• HCU—Hydraulic Control Unit
• ABS—Antilock Brake System
• PSI—Pounds per Square Inch (pressure)
• WSS—Wheel Speed Sensor
• FWD—Front Wheel Drive
• DTC—Diagnostic Trouble Code
BRAKES
. . . . . . . . . . . 74
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
5 - 65
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