DTC P0190-11: Fuel Rail Pressure Sensor "A" Circuit Short to Ground [12/2021 - ]: Description

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The fuel pressure sensor (for high pressure side) is installed on the fuel delivery pipe (for high pressure side). The fuel pressure sensor (for high pressure side) changes the fuel pressure for high pressure side into an electrical signal and sends the signal to the ECM. Then the ECM controls the pump discharge using this feedback to maintain the fuel's target pressure between 2.8 and 20 MPa (28.6 and 204 kgf/cm² , 406 and 2900 psi).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	DTC Output from	Priority	Note
P0190-11	Fuel Rail Pressure Sensor "A" Circuit Short to Ground	The fuel pressure sensor (for high pressure side) output voltage is less than 0.293 V for 3 seconds or more (1 trip detection logic).	Open or short in fuel pressure sensor (for high pressure side) circuit Fuel pressure sensor (for high pressure side) ECM	Comes on	Engine	A	SAE: P0192

HINT:

When a DTC is output, check the Data List item "Fuel Pressure (High)" using the GTS.

Refer to DATA LIST / ACTIVE TEST [12/2021 - ]

DTC No.	Fuel Pressure (High)	Malfunction
P0190-11	Approximately 0 kPag	Short to ground in PR circuit Short in PR to EPR circuit Open in VCPR circuit

If the Data List displays a normal value, the normal value may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.