1189 / 1906
ANTI LOCK BRAKING SYSTEM (ABS)
TABLE OF CONTENTS
1.0
GENERAL INFORMATION ..................................................................................1
A NECCESITY OF ABS WITH EBD .................................................................................................... 1
B TECHNICAL SPECIFICATIONS ...................................................................................................... 2
C TIGHTENING TORQUES................................................................................................................. 3
D SCHEMATIC OF HYDRAULIC CIRCUIT ......................................................................................... 5
E WORKING OF ANTI-LOCK BRAKING SYSTEM (ABS)
.......................................................... 6
2.0
COMPONENTS
............................................................................................................ 10
A.
ABS ELECTRONIC CONTROL UNIT / HYDRAULIC CONTROL UNIT (ECU / HCU) .................. 11
B. WHEEL SPEED SENSOR:............................................................................................................. 14
C.
ABS SYSTEM FAILURE WARNING LIGHT ................................................................................. 15
3.0
REPAIRS ............................................................................................................16
A.
ABS ECU/HCU REMOVAL............................................................................................................ 17
B.
FRONT WHEEL SPEED SENSOR ............................................................................................... 20
C.
FRONT TONER RING ................................................................................................................... 21
D.
REAR WHEEL SPEED SENSOR.................................................................................................. 22
E.
REAR TONER RING ..................................................................................................................... 23
4.0
TROUBLE SHOOTING AND DIAGNOSIS.........................................................24
A.
ROAD TEST................................................................................................................................... 24
B.
TABLE OF ABS 8.1 - FALL-BACK LEVEL .................................................................................... 24
5.0
ABS DIAGNOSTIC USER MANUAL .................................................................25