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( ALS ECU ) recognizes the pressure value as a percentage of signal value against power supply.
The ALS 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 0.1V or more than 4.85V during over 2 seconds | |
Fail-Safe |
•
The self-leveling is enabled by the compressor
•
The warning lamp is activated. |
