sensor SSANGYONG MUSSO 1998 Workshop Repair Manual

2A-12 SUSPENSION DIAGNOSIS
SELF DIAGNOSIS TEST
DIAGNOSIS TEST
Special Tool Requirements : Scanner
1. Position the ignition switch to 'OFF'.
2. Connect Scanner harness connector to the engine
compartment diagnosis socket.
3. Turn the ignition switch to 'ON' position.
4. Select "Electronic control vehicle diagnosis" from function
selection display and press "Enter".
5. Select "Musso ('98 model year)" from vehicle model selection
display and press 'Enter'.
6. Select "Electronic suspension system (ECS)" from control
system selection display and press 'Enter'.
7. Select "Self-diagnosis" from diagnosis item selection display.
Notice
Check sensor value output display, if necessary.
8. Determine the fault code and check defective component.
Notice
Refer to self-diagnosis list.

SUSPENSION DIAGNOSIS 2A-13
Self - Diagnosis List
Fault
CodeDefectsService Hint
01 Vertical Acceleration Sensor
02 Lateral Acceleration Sensor
03 Wheel Acceleration Sensor
04
05 Rear Step Motor
0 6 ECUFront Step Motor1. Check sensor supply voltage
lCondition - IGN ON
lStandard value - voltage between pin 11 and 8 of ECU :
4.5 - 5.0V
2. Check sensor output voltage
lCondition - IGN ON
lStandard value - voltage between pin 20 and 11 of ECU
: 0.5 - 4.5V
3. Check the sensor.
4. Check circuit for open.
5. Check connection of other connectors.
1. Check sensor supply voltage
lCondition - IGN ON
lStandard value - voltage between pin 11 and 8 of ECU :
4.5 - 5.0V
2. Check sensor output voltage
lCondition - IGN ON
lStandard value - voltage between pin 10 and 11 of ECU
: 0.5 - 4.5V
3. Check the sensor.
4. Check circuit for open.
5. Check connection of other connectors.
1. Check step motor supply voltage.
2. Check circuit for open.
3. Check connection of other connectors.
1. Check step motor supply voltage.
2. Check circuit for open.
3. Check connection of other connectors.
1. Check connectors of ECU.
2. Replace the ECU. 1. Check sensor supply voltage
lCondition - IGN ON
lStandard value - voltage between pin 11, 8 and pin
7,11 of ECU : 4.5 - 5.0V
2. Check sensor output voltage
3. Check the sensor.
4. Check circuit for open.
5. Check connection of other connectors.

SECTION 2C
FRONT SUSPENSION
TABLE OF CONTENTS
SPECIFICATIONS
GENERAL SPECIFICATIONS
Type
Spring Type
Torsion Bar
Shock Absorber
Stabilizer TypeDouble Wishbone
Torsion Bar Spring
1,040 mm
24.5 mm
Cylindrical Reciprocation Type
Torsion Bar Spring
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 2C-1
General Specifications . . . . . . . . . . . . . . . . . . 2C-1
Fastener Tightening Specifications . . . . . . . . . 2C-2
Component Locator . . . . . . . . . . . . . . . . . . . 2C-3
Front Suspension . . . . . . . . . . . . . . . . . . . . . . 2C-3
Maintenance and Repair . . . . . . . . . . . . . . . 2C-4
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 2C-4
Front Stabilizer Bar . . . . . . . . . . . . . . . . . . . . . 2C-4
ApplicationDescription Torsion Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . 2C-6
Front Lower and Upper Arm . . . . . . . . . . . . . . 2C-8
Front Shock Absorber . . . . . . . . . . . . . . . . . 2C-10
Axle Vertical Acceleration Sensor
(Wheel G Sensor) . . . . . . . . . . . . . . . . . . . 2C-12
Vertical and Lateral Sensor . . . . . . . . . . . . . . 2C-13
ECS (ECU) . . . . . . . . . . . . . . . . . . . . . . . . . . 2C-14
Length
Outer Diameter(
f)

2C-12 FRONT SUSPENSION
1 Axle Vertical Acceleration Sensor (wheel G
sensor)
Removal & Installation Procedure
1. Disconnect extension wiring connector (2) from the axle
vertical acceleration sensor.
Notice
Installation of wiring connector should be as shown in the
right drawing.
2. Unscrew bolts (3) and remove the axle vertical acceleration
sensor (1).
Notice
When installing the sensor to the bracket, the sensor wiring
should be upward.
3. Installation should follow the removal procedure in the
reverse order.
1 Actuator Connector
2 Axle Vertical Acceleration Sensor Connector
3 Front Hose Mounting Bracket
4 Frame Side Member
AXLE VERTICAL ACCELERATION SENSOR (WHEEL G SENSOR)
2 Extension Wiring
3 Bolt (M6)............................................. 20 - 30Nm

FRONT SUSPENSION 2C-13
VERTICAL AND LATERAL SENSOR
Removal & Installation Procedure
1. Disconnect vertical sensor and lateral sensor connectors.
Notice
When connecting the connectors, connector connection of
the lateral sensor (2) should be in the right and connector
connection of the vertical sensor (1) should face downward.
2. Unscrew bolts and remove vertical sensor and lateral sensor.
Installation Notice
1 Body Vertical Acceleration Sensor(Vertical Sensor)
2 Body Lateral Acceleration Sensor (Lateral Sensor)
3. Installation should follow the removal procedure in the
reverse order.
Tightening Torque 20 - 30 Nm

3A-2 FRONT DRIVE AXLE
FASTENER TIGHTENING SPECIFICATIONS
Steering Knuckle and Drive Shaft
Application
Drive Shaft to Front Axle Inner Shaft
Wheel Speed Sensor
Drive Shaft Cover Bolt
Locking Hub Washer Screw
Hub Flange Bolt
Hub NutNlm
25 - 35
85 - 105
50 - 60
2 - 4
70 - 90
15

FRONT DRIVE AXLE 3A-9
Removal & Installation Procedure
1. Remove the tire.
Installation Notice
Steel Wheel
Aluminum WheelTightening Torque80 - 120 Nm
110 - 130 Nm
2. Remove the autolocking hub vacuum hose.
3. With ABS
Remove the wheel speed sensor from the steering knuckle.
Installation Notice
4. Remove the mounting bolts and pull off the caliper assembly.
Installation Notice
Tightening Torque 6 - 8 Nm
Hose Bolt
Mounting BoltTightening Torque25 - 35 Nm
85 - 105 Nm
Notice
Be careful not to damage the brake hose.

SECTION 4A
HYDRAULIC BRAKES
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 4A-1
General Specifications . . . . . . . . . . . . . . . . . . 4A-1
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-2
Noise or Vehicle Vibration When Applied
Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-2
Pulls to One Side When Braking . . . . . . . . . . . 4A-2
Poor Braking . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-2
Increasing Pedal Stroke (Pedal Goes to
Floor) or Brake Dragging . . . . . . . . . . . . . . . 4A-3
Poor Braking of Parking Brake . . . . . . . . . . . . 4A-3
TABLE OF CONTENTS
Component Locator . . . . . . . . . . . . . . . . . . . 4A-4
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-4
ABS / ABD . . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-5
Non-ABS / ABD . . . . . . . . . . . . . . . . . . . . . . . . 4A-6
Maintenance and Repair . . . . . . . . . . . . . . . 4A-7
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 4A-7
Bleeding the Brakes . . . . . . . . . . . . . . . . . . . . 4A-7
Brake Pedal . . . . . . . . . . . . . . . . . . . . . . . . . . 4A-9
LCRV (Load Conscious Reducing Valve) . . . 4A-12
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.
Type
Pedal Ratio
Pedal Stroke
Pedal Freeplay
Type
Inner Diameter
Type
Ratio
Type
I.D. of Caliper Cylinder
Thickness of Brake Pad
Thickness of Disc Plate
Type
I.D. of Caliper Cylinder
Thickness of Brake Pad
Thickness of Disc Plate
Type
Operation
SpecificationPBR Brake
4.3 : 1
132 mm
f23.81 mm
5.0 : 1
f60.4 mm
¬
f40.5 mm
9.5 mm
¬ Suspended
1 - 4 mm
Tandem Type with Lever Sensor
Vacuum Booster Type
Ventilated Disc
10 mm
24 mm
Rear Wheel Internal Expansion Type
Mechanical
SAE J1703, DOT3
SPECIFICATIONS
GENERAL SPECIFICATIONS
Brake Pedal
Master Cylinder
Brake Booster
Front Brake
Rear Brake
Parking Brake
Brake FluidMANDO Brake
4.3 : 1
138 mm
f25.4 mm
5.6 : 1
f60 mm
Solid Disc
f38.2 mm
10.0 mm
10.4 mm
Application

HYDRAULIC BRAKES 4A-13
Construction
LCRV consists of sensing part and hydraulic control part.
1. Sensing Part
It detects the changes of vehicle height caused by vehicle
load. It consists of load sensing spring and control lever
which change according to vehicle load.
2. Hydraulic Control Part
It consists of valve stem devices which controls hydraulic
pressure according to load detected by sensing part.
Trouble Shooting
Poor Braking
Possible Cause
Air in Brake System
Poor Adjustment of Sensor Spring
Damaged Sensor Spring
Fluid Leaking from LCRVRemedy
Bleeding
Adjust
Replace
Replace
Possible Cause
Poor Adjustment of Sensor Spring
Internal Fluid Leaking of LCRVRemedy
Adjust
Replace
Abnormal Locking

4B-2 MASTER CYLINDER
1 Nut .......................................................14-22 Nm
2 Washer
3 Master Cylinder Assembly
4 Oil Level Sensor
5 Check Valve
6 Booster
7 Clevis Pin
8 Snap Pin9 Seal
10 Spacer
11 Nut .........................................................8-18 Nm
12 Front Tube (LH)
13 Front Tube (RH)
14 Rear Tube
15 1st Tube (Primary)
16 2nd Tube (Secondary)
MANDO
PBR
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
BOOSTER AND BRAKE MASTER CYLINDER