DTC Detection Logic

DTC No.	Trouble diagnosis name (Trouble diagnosis name)	DTC detecting condition	Possible cause
P0191	FRP SENSOR A (Fuel rail pressure sensor)	Fuel rail pressure remains at more than 14.5 MPa (147.9 kg/cm² , 21025 psi) for 0.2 seconds or more during ignition ON.	Harness or connectors (Fuel rail pressure sensor circuit is open or shorted.) (Battery current sensor circuit is open or shorted.) (G sensor circuit is open or shorted.) (Camshaft position sensor circuit is open or shorted.) (Exhaust valve timing control position sensor circuit is open or shorted.) (Accelerator pedal position sensor 2 circuit is open or shorted.) (Turbocharger boost sensor circuit is open or shorted.) (Engine oil pressure sensor circuit is open or shorted.) Fuel rail pressure sensor Battery current sensor G sensor Camshaft position sensor Exhaust valve timing control position sensor Accelerator pedal position sensor 2 Turbocharger boost sensor Engine oil pressure sensor