DTC P0190-15: Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open [10/2022 - 08/2023]: Procedure

HINT: 

Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.

Pre-procedure1

• Disconnect the fuel pressure sensor (for high pressure side) connector.
• Turn the ignition switch to ON.

• Measure the voltage according to the value(s) in the table below.

  Standard Voltage

  Tester Connection	Condition	Specified Condition	Result
  V1-1 (VC) - V1-2 (E2)	Ignition switch ON	4.75 to 5.25 V	V
  V1-3 (PR) - V1-2 (E2)	Ignition switch ON	3.0 to 5.25 V	V

Post-procedure1

• Turn the ignition switch off and wait for at least 30 seconds.

Pre-procedure2

• None.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  V1-2 (E2) - Body ground	Ignition switch off	Below 1 Ω	Ω
  V1-1 (VC) - V1-3 (PR)	Ignition switch off	178 to 182 kΩ	kΩ

  Result

  Proceed to
  OK
  NG

Pre-procedure2

• None.

Result: 

OK 

REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE). Refer to  REMOVAL [10/2022 - 08/2023] 

Result: 

NG 

See step  2

Pre-procedure1

• Disconnect the fuel pressure sensor (for high pressure side) connector.
• Disconnect the ECM connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  V1-3 (PR) - B28-97 (PR)	Always	Below 1 Ω	Ω
  V1-2 (E2) - B28-96 (EPR)	Always	Below 1 Ω	Ω
  V1-3 (PR) or B28-97 (PR) - Other terminals	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None.

Result: 

OK 

REPLACE ECM. Refer to  REMOVAL [10/2022 - 08/2023] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR