DTC Detection Logic

DTC DETECTION LOGIC

DTC No.	Trouble diagnosis name	DTC detecting condition	Possible cause
P0190	Fuel rail pressure sensor circuit low input and high input	Signal voltage from the fuel rail pressure sensor remains at more than 4.84 V/less than 0.2 V for 5 seconds or more.	Harness or connectors (Fuel rail pressure sensor circuit is open or shorted.) (Power steering pressure sensor circuit is open or shorted.) (Low fuel 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 Low fuel pressure sensor Electrically-controlled cooling fan coupling
P0192	Fuel rail pressure sensor circuit low input	Signal voltage from the fuel rail pressure sensor remains at less than 0.37 V for 5 seconds or more.
P0193	Fuel rail pressure sensor circuit high input	Signal voltage from the fuel rail pressure sensor remains at more than 3.46 V for 5 seconds or more.