Daewoo Musso. Manual — part 203
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.
Logic
Sensor
Road Sensing Driving Comfort Control Logic
Speed
Vertical
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 Conditions
01
0.9 - 1.1sec.
Set Time
Sensor Voltage
³
2.0 ± 0.1V
³
3.0 ± 0.1V
Release Conditions
0.9 - 1.1sec.
Set Time
Body lateral
acceleration
sensor
When sensor output
voltage is less than
0.55±0.15V, more than
4.45±0.1V.
02
0.9 - 1.1sec.
Sensor Voltage
³
2.0 ± 0.1V
³
3.0 ± 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
³
2.0 ± 0.1V
³
3.0 ± 0.1V
0.9 - 1.1sec.
Stop ride
control
Front actuator
Check step motor
power supply detecting
circuit for open and
short.
check for relative
connectors.
04
0.4 - 0.6sec.
IGN+ SW.
OFF
®
ON
Stop control
after returning
to the previ-
ous mode
Rear actuator
When defective detect-
ing circuit has detected
defectives during
output OFF.
05
0.4 - 0.6sec.
IGN+ SW.
OFF
®
ON
Stop 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.
2A-8 SUSPENSION DIAGNOSIS
-
ACTUATOR INSPECTION
Output position of the actuator should be changed as below when battery voltage is applied between actuator
connector terminals.
Connector
terminal
Battery Voltage
Position of The Actuator Output
Remark
1 (White)
-
2 (Black)
OPEN
3 (Red)
+
1 (White)
+
2 (Black)
-
3 (Red)
OPEN
1 (White)
OPEN
2 (Black)
+
3 (Red)
SOFT Mode
MEDIUM Mode
HARD Mode
SUSPENSION DIAGNOSIS 2A-9
ECS CIRCUIT
SCHEMATIC AND ROUTING DIAGRAMS
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст