DTC Detection Logic

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P119A	FUEL PRESSURE SENSOR (Fuel pressure sensor)	Diagnosis condition	Battery voltage: 8 V or more Under engine start condition Engine coolant temperature at previous ignition switch OFF: 65 deg.C (149 deg.F) or more Engine coolant temperature: 35 deg.C (65 deg.F) or less Temperature difference between engine coolant and intake air: Less than 6 deg.C (42 deg.F) Fuel system monitor: Excessively RICH
		Signal (terminal)	Fuel rail pressure sensor signal
		Threshold	Fuel rail pressure is less than 1.0 MPa (10.2 kg/cm ² , 145 psi) (calculated by ECM)
		Diagnosis delay time	--
P119B	FUEL PRESSURE SENSOR (Fuel pressure sensor)	Diagnosis condition	Battery voltage: 8 V or more Ignition switch: ON (engine stopped) Engine coolant temperature at previous ignition switch OFF: 65 deg.C (149 deg.F) or more Engine coolant temperature: 35 deg.C (65 deg.F) or less Temperature difference between engine coolant and intake air: Less than 6 deg.C (42 deg.F) Fuel system monitor: Excessively LEAN
		Signal (terminal)	Fuel rail pressure sensor signal
		Threshold	Fuel rail pressure is more than 1.5 MPa (15.3 kg/cm ² , 217 psi) (calculated by ECM)
		Diagnosis delay time	--