SsangYong Musso. Service manual — part 221
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
≥
2.0 ± 0.1V
≥
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
≥
2.0 ± 0.1V
≥
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
≥
2.0 ± 0.1V
≥
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
2A-10 SUSPENSION DIAGNOSIS
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