Pressure Sensor is installed within Solenoid Valve Assay. Its role is to measure the pressure of the inner solenoid valve assay. As this sensor is pressured from the outside, an electrostatic capacity changes and this causes output's voltage to change. This sensor's output is analog signal which is in proportional to power supply and the control unit( ECS ECU ) recognizes the pressure value as a percentage of signal value against power supply.
The ECS ECU monitors the pressure sensor's signal and if it is out of normal range, this DTC is set.
Item
Detecting Condition
Possible cause
DTC Strategy
Monitoring the voltage of pressure sensor
Open or short in the pressure sensor circuit
Faulty pressure sensor
Threshold value
When the Pressure sensor's output voltage is less than 0.2V or more than 4.8V during over 2 seconds
When there are no input signals during 12 times and the battery voltage is above 10V
During one ignition cycle, when the air-charging fails 4 times
Fail-Safe
Airspring
Inhibition of controlling the upward level of vehicle
CDC
damper
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