LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2022 >> Avalon XLE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 53 (Engine Control System - Diagnostic Codes [A25A-FXS] (P0105-P0190)) >> SFI System >> DTC P0190-15: Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open [04/2018 -] >> Procedure

DTC P0190-15: Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open [04/2018 -]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK HARNESS AND CONNECTOR 
    GTY852017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Fuel Pressure Sensor (for High Pressure Side))

    HINT: 

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

    1. Disconnect the fuel pressure sensor (for high pressure side) connector.
    2. Turn the power switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      U1-1 (VC) - U1-2 (E2) Power switch on (IG) 4.75 to 5.25 V
      U1-3 (PR) - U1-2 (E2) Power switch on (IG) 3.0 to 5.25 V
    4. Turn the power switch off and wait for at least 30 seconds.
    5. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      U1-2 (E2) - Body ground Power switch off Below 1 Ω
      U1-1 (VC) - U1-3 (PR) Power switch off 171 to 189 kΩ

      HINT: 

      Perform "Inspection After Repair" after replacing the fuel pressure sensor (for high pressure side).

      Refer to INITIALIZATION [04/2018 - 08/2019] , or refer to INITIALIZATION [08/2019 - 08/2021] , or refer to INITIALIZATION [08/2021 -]

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE). Refer to  REMOVAL [04/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 -] 

    Result: 

    NG 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR (FOR HIGH PRESSURE SIDE) - ECM) 
    1. Disconnect the fuel pressure sensor (for high pressure side) connector.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      U1-3 (PR) - C55-97 (PR) Always Below 1 Ω
      U1-2 (E2) - C55-96 (EPR) Always Below 1 Ω
      U1-3 (PR) or C55-97 (PR) - Other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [04/2018 - 08/2020]  , or refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 -] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

scientia non olet · About LEMON Manuals