Is the air chamber and the tube clogged?
Replace the Main PCB.
Is the Connectorconnected correctly to
theMain PCBand the Pressure Switch?
Is the Harnessalright ?
Reconnect or repair the Connector.
Or replace the Harness.
Check air chamber and remove foreign material.
Replace the Pressure Switch.
YES
YES
NO
Is the resistance of the Pressure Switch
out of range?
[Pin1 ~ Pin3]
21~23Ω)
NO
NO
YES
Pressure Sensor S/W Error (PE)
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