DTC Detection Logic

DTC No.	Trouble diagnosis name (Trouble diagnosis content)	DTC detecting condition	Possible cause
P0550	PW ST P SEN/CIRC (Power steering pressure sensor circuit)	An excessively low or high voltage from the sensor is sent to ECM.	Harness or connectors (The Fuel rail pressure sensor circuit is open or shorted.) (The Power steering pressure sensor circuit is open or shorted) (The Electrically-controlled cooling fan coupling circuit is open or shorted) Fuel rail pressure sensor Power steering pressure sensor Electrically-controlled cooling fan coupling