sensor SSANGYONG MUSSO 1998 Workshop Repair Manual

1G1-4 M162 ENGINE INTAKE & EXHAUST
INTAKE AIR DUCT
1 Clamp
2 Sleeve
3 Nut
4 Clamp
5 Intake Air Duct
3. Remove the clamp (4).
4. Remove the intake air duct (5) carefully.
Installation Notice
Exactly seat the pin of intake air duct onto the crankcase
ventilation rubber mount.
5. Installation should follow the removal procedure in the
reverse order.
Removal & Installation Procedure
1. Remove the clamp (1) and disconnect the HFM sensor.
2. Remove the nut (3) (arrow).

M162 ENGINE INTAKE & EXHAUST 1G1-11
Removal and Installation of Exhaust Line
1 Exhaust Manifold
2 Rivet Nut
3 Bolt........................................................... 30 Nm
4 Front Pipe
5 Oxygen Sensor
6 Bolt......................................................28-47 Nm
7 Rubber Pad
8 Catalytic Converter
9 Gasket ................................................... Replace1 0 Nut
11 Gasket ................................................... Replace
12 Rubber Pad
13 Nut .......................................................28-47 Nm
14 Center Muffler
15 Rubber Pad
16 Tail Muffler
17 Gasket ................................................... Replace
18 Nut .......................................................28-47 Nm

M161 ENGINE INTAKE & EXHAUST 1G2-3
Removal & Installation Procedure
1. Release the clamp securing HFM sensor and air cleaner.
2. Disengage the air cleaner assembly and HFM sensor
assembly.
3. Unserew the mounting bolt(6) from the bracket.
Installation Notice
Tightening Torque 22.5 - 27.5 Nm
4. Release the clamp from air cleaner assembly housing and
remove the cover.
5. Remove the air cleaner assembly.
6. Remove the air cleaner housing from insulator.
Notice
Make sure the air cleaner to be seated in insulator.
7. Disengage the air duct hose and air cleaner housing and
remove the housing.
8. Remove the air duct hose.
9. Unscrew the two bolts(7) from air inlet duct.
Installation Notice
10. Remove the air inlet duct.
11. Installation should follow the removal procedure in the
reverse order.
Tightening Torque 8 - 9 Nm

M161 ENGINE INTAKE & EXHAUST 1G2-5
INTAKE AIR DUCT
1 Clamp
2 Sleeve
3 HFM Sensor
4 Intake Air Duct
5 Blow-by Hose
7 Clamp(2 pieces)
8 Intake Air Duct Mounting
Bracket
Removal & Installation Procedure
1. Release the clamp (1) and intake air duct.
2. Remove the Blow-by hose (5) (arrow).

M161 ENGINE INTAKE & EXHAUST 1G2-9
EXHAUST MANIFOLD
1 Oxygen Sensor..............................49.5-60.5 Nm
2 Bolt (4 pieces)........................................ 9-11 Nm
3 Upper Cover
4 Nut (11 pieces)...............................31.5-38.5 Nm5 Exhaust Manifold
6 Flange Bolt & Exhaust Pipe
Mounting Nut............................................ 30 Nm
7 Gasket ................................................... Replace
Removal & Installation Procedure
1. Remove the oxygen sensor if necessary.
Installation Notice
Tightening Torque 49.5 - 60.5 Nm
2. Unscrew the bolt (2) and remove the exhaust manifold upper
cover (3).
3. Unscrew the flange bolt (6) of front exhaust pipe and
separate the front exhaust pipe.
Installation Notice
Tightening Torque 30 Nm
Notice
Check the exhaust pipe mounting nut, and replace it with
new one if necessary.

2A-2 SUSPENSION DIAGNOSIS
ApplicationDescription
4.75 - 5.25Power Voltage (V)
Axle Vertical
Acceleration
Sensor
(Wheel G
Sensor)Less than 10
Consuming Current (mA)
Less than 2.0 Output Current (mA)
Operating Characteristics
Type Damping
Force
Switching
Actuator3-stage Rotary Step Motor Type
Voltage Rating (V)
DC12
Current Rating (A)
Less than 2.5
Current Time (mS) 95 - 105
4.75 - 5.25Power Voltage (V)
Body
Vertical and
Lateral
Acceleration
Sensor
Less than 10 Consuming Current (mA)
Less than 2.0
Output Current (mA)
Operating Characteristics
Output Voltage
0.752.5 4.25
-1.5g
1g 3.5g
Acceleration
(Vertical Acceleration Sensor)
Output Voltage
0.752.5 4.25
-1g
0g 1g
Acceleration
(Lateral Acceleration Sensor)
Output Voltage
0.752.5 4.25
-9g
1g
11 g
Acceleration
GENERAL SPECIFICATIONS (Cont'd)

SUSPENSION DIAGNOSIS 2A-5
INPUT & OUTPUT DEVICES AND DAMPING FORCE
CONTROL LOGIC
INPUT & OUTPUT DEVICES
Damping force of shock absorber will rotate shock absorber control rod in 3 modes by driving actuator on the upper
shock absorber when signaled from ECS.
Rotary valve in the shock absorber will control hydraulic flow according to rotation of control rod to adjust damping
force of shock absorber in SOFT«MEDIUM«HARD.
SYSTEM LAYOUT
1 ECS (ECU)
2 Body Vertical Acceleration Sensor (Vertical
Sensor)
3 Body Lateral Acceleration Sensor (Lateral
Sensor)
Speed Sensor
Axle Vertical Acceleration Sensor
(Wheel G Sensor)
Stop Lamp Switch
Body Vertical Acceleration Sensor
(Vertical Sensor)
ECS Switch
Indicator Lamp
Actuator
Shock Absorber
Self-Diagnosis Connector
Damping Force Adjustment
ECS
(ECU)
Body Lateral Acceleration Sensor
(Lateral Sensor)
4 ECS Mode Switch
5 Stop Lamp Switch
6 Axle Vertical Acceleration Sensor (Wheel G
Sensor)
7 Mode Actuator

2A-6 SUSPENSION DIAGNOSIS
DAMPING FORCE CONTROL LOGIC
Control Logic that applies on damping force variable suspension is comprised of road sensing driving comfort control
logic to increase driving comfort and vehicle speed sensing control logic, anti-roll control logic and anti-dive control
logic to secure control safety.
LogicSensor
Road Sensing Driving Comfort Control LogicSpeedVertical
Sensor (2.5g)Lateral
Sensor (1g)Axle
Acceleration
Sensor (10g)Brake
Anti-bounce Control Logic
Anti-roll Control Logic
Anti-dive Control Logic
Vehicle Speed Sensing Control Logic
NORMAL CONTROL
Initial Stage
When ignition switch is "ON", system initialization will be performed for approx. 3 seconds. During this time, warning
lamp will stay ON and damping force will be switched to Hard status. After 3 seconds, warning lamp will turn off and
normal control status will be restored.
Normal Damping Force Control Establishment
Damping force will have Soft®Medium®Hard status in AUTO mode and Medium®Hard status in SPORT mode.
When double control items are satisfied at the same time it will be Hard®Medium®Soft in order.
Normal Damping Force Control Release
Control mode release will be "Hard®Medium®Soft"or "Medium®Soft". In case that returned from Hard status to
Medium status during control, it will be done after elapse of setting times. Returning from Medium status to Soft status
will be done immediately without delay.

SUSPENSION DIAGNOSIS 2A-7
SELF-DIAGNOSIS
ECS-ECU indicates ECS circuit defectives to the driver by flickering ECS indicator lamp in the meter cluster 0.5
second of interval if there are defectives.
Code
Body vertical
acceleration
sensor Defects
When sensor output
voltage is less than
0.5-4.5V, more than
4.5V. Judging Conditions01
0.9 - 1.1sec.Set TimeSensor Voltage
³2.0 ± 0.1V
³3.0 ± 0.1V
Release Conditions
0.9 - 1.1sec.Set Time
Body lateral
acceleration
sensorWhen sensor output
voltage is less than
0.55±0.15V, more than
4.45±0.1V. 02
0.9 - 1.1sec.
Sensor Voltage
³2.0 ± 0.1V
³3.0 ± 0.1V
0.9 - 1.1sec.
Stop anti-
bounce ride
control Remedy
Stop anti-roll
control
Axle vertical
acceleration
sensor (wheel G
sensor)When sensor output
voltage is less than
0.5-4.5V, more than
4.5V. 03
0.9 - 1.1sec.
Sensor Voltage
³2.0 ± 0.1V
³3.0 ± 0.1V
0.9 - 1.1sec.
Stop ride
control
Front actuatorCheck step motor
power supply detecting
circuit for open and
short.
check for relative
connectors. 04
0.4 - 0.6sec.
IGN+ SW.
OFF®
ONStop control
after returning
to the previ-
ous mode
Rear actuatorWhen defective detect-
ing circuit has detected
defectives during
output OFF. 05
0.4 - 0.6sec.IGN+ SW.
OFF®
ONStop control
after returning
to the previous
mode
ECU
When ECU does not
work normally. 06
0.4 - 0.6sec.Reset
Stop control
1. Turn the ignition switch ON and if ECS system is normal, ECS indicator lamp will turn on for 3 seconds and then go
off. However if defective, ECS indicator lamp will flicker in the interval of 0.5 second continuously.
2. Identify fault code with Scanner.

SUSPENSION DIAGNOSIS 2A-11
Connector Pin Number and Circuits
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
26
Ignition
Actuator R-MEDIUM
Actuator R-SOFT
Actuator F-HEAD
Select Switch
Speed Sensor
Wheel G Sensor
Wheel G Sensor Ground
-
Vertical G Sensor
Sensor +5V
Chassis Ground
Indicator Lamp
NO. CircuitNO. Circuit
1
14
215
316
417
518
619
720
821
922
10 23
11 2 4
12 25
13 26
Chassis Ground
Actuator R-HEAD
Actuator F-MEDIUM
Actuator F-SOFT
Brake Switch
-
Lateral G Sensor
Lateral G Sensor Ground
Vertical G Sensor Ground
Diagnosis K Line
Diagnosis L Line
-
-