1998 SSANGYONG MUSSO lock

4A-14 HYDRAULIC BRAKES
LCRV SETTING METHOD
1. LCRV setting should be performed with unladen vehicle
condition.
2. Install the connecting rod (a) to the No.1 hole.
Tightening Torque14 - 18 Nm
3. Adjust the clearance “X” to be 0 mm and tighten the bolt (c)
using the lock nut (b).
Tightening Torque 14 - 18 Nm
4. Remove the connecting rod (a) from the No.1 hole and
reinstall it to the No. 2 hole.
5. Place alignment marks between the lock nut (b) and
adjusting screw (c) after the valve setting.

Front
Rear
Front
Rear
SECTION 4F
ANTILOCK BRAKE SYSTEM
TABLE OF CONTENTS
Caution: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this
cable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCK
unless otherwise noted.
SPECIFICATIONS
GENERAL SPECIFICATIONS
Application
Model
ECUNumber of Pins
Operating Temperature
Motor Operating Current
Solenoid Coil Resistance
External Resistance
Air Gap
Number of teethDescription
ABS 5.3
31
-40 ~ +120°C
Below MAX 40A
1.28KW - 1.92KW
0.35 - 1.60 mm
0.15 - 1.20 mm
52
52ABS/ABD 5.3
83
-40 ~ +85°C
Below MAX 45A
8.04 - 9.04W except AV,
HSV 4.04 - 4.54W
1.28KW - 1.92KW
0.35 - 1.60 mm
0.15 - 1.20 mm
52
52 Hydraulic System
Wheel Speed Sensor
Impulse Ring
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 4F-1
General Specifications . . . . . . . . . . . . . . . . . . 4F-1
Schematic and Routing Diagrams . . . . . . . . 4F-2
ABS 5.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4F-2
ABS/ABD 5.0 . . . . . . . . . . . . . . . . . . . . . . . . . 4F-3
ABS 5.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4F-4
ABS/ABD 5.3 . . . . . . . . . . . . . . . . . . . . . . . . . 4F-5
Component Locator . . . . . . . . . . . . . . . . . . . 4F-6
ABS, ABS/ABD . . . . . . . . . . . . . . . . . . . . . . . . 4F-6
ABD System Description . . . . . . . . . . . . . . . 4F-7Self Diagnosis . . . . . . . . . . . . . . . . . . . . . . . 4F-9
ABS, ABS/ABD 5.3 . . . . . . . . . . . . . . . . . . . . . 4F-9
ABS, ABS/ABD 5.0 . . . . . . . . . . . . . . . . . . . . 4F-11
Defect Codes . . . . . . . . . . . . . . . . . . . . . . . . 4F-13
Maintenance and Repair . . . . . . . . . . . . . . 4F-19
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . 4F-19
Wheel Speed Sensor . . . . . . . . . . . . . . . . . . 4F-19
Hydraulic Circuit . . . . . . . . . . . . . . . . . . . . 4F-21
ABS 5.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4F-21
ABS/ABD 5.3 . . . . . . . . . . . . . . . . . . . . . . . . 4F-24

4F-2 ANTILOCK BRAKE SYSTEM
ABS 5.0
SCHEMATIC AND ROUTING DIAGRAMS
5.0W
5.0W
30A
30A ENG

ANTILOCK BRAKE SYSTEM 4F-3
ABS/ABD 5.0
ABD ACTIVE

4F-4 ANTILOCK BRAKE SYSTEM
ABS 5.3
5.0W
5.0W
30A
30A
NO.21
K2

ANTILOCK BRAKE SYSTEM 4F-5
ABS/ABD 5.3
5.0W
5.0W

4F-6 ANTILOCK BRAKE SYSTEM
ABS,ABS/ABD
COMPONENT LOCATOR
1 ABS Hydraulic Unit
2 ABS/ABD Hydraulic Unit
3 Diagnosis Socket
4 Front Wheel Speed Sensor
5 Front Impulse Ring6 Rear Wheel Speed Sensor
7 Rear Impulse Ring
8 ABS Warning Indicator Light
9 TCS Indicator Light
1 0 ABS/ABD ECU

ANTILOCK BRAKE SYSTEM 4F-7
ABD SYSTEM DESCRIPTION
General:
The Automatic Brake Differential Lock (ABD) is a traction system by means of brake intervention only, available in
a low speed range (< 60kph).
It workes on m-split roads with sidewise different friction coefficients.
The spinning driven wheel is braked and the drive torque can be transferred to the wheel on the high- m side.
During ABD active, the ABD information lamp is blinking.
The temperature of the brakes is calculated by a mathematical model and ABD is switched passive if the calculated
temperature is greater than a threshold value(500°C).
ABD is permitted again, when the calculated temperature is less than 350°C.
Control Algorithm:
The input signals for the control algorithm are the filtered
wheel speed signals from the ABS speed processing.
With the speed difference of the driven wheels, the control
deviation is calculated.
If the control deviation exceeds a certain threshold value,
the wheel with the greater slip is braked actively.
The threshold value depends on the vehicle speed:
It is reduced with increasing vehicle speed down to a constant
value.
Pressure Modulation:
Depending on the control deviation and the wheel acceleration of the spinning wheel, pressure increase, hold and
decrease are made.
The pressure modulation is done with the conventional control with the valves. ASV, USV, EV and AV according
the the following table:
Speed Range:
ABD is available in the speed range £ 60 kph.
Above 60 kph vehicle speed, ABD is passive.
It is possible to initiate ABD operation up to a vehicle speed of 55kph.
Increase
Open Open Open ASVDecrease Hold
Closed Closed Closed
Closed Closed Open
Open Closed Closed USV
EV
AV
Speed difference driven wheels [kph]
18
6
1260ABD operation
Vehicle
speed
[kph]