SFI SYSTEM, Diagnostic DTC:P019011

DTC Code DTC Name
P019011 Fuel Rail Pressure Sensor "A" Circuit Short to Ground

DESCRIPTION

A107720E18

The fuel pressure sensor is installed on the delivery pipe for high pressure side. The fuel pressure sensor 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 2.4 and 20 MPa (24.5 and 204 kgf/cm2).

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P019011

Fuel Rail Pressure Sensor "A" Circuit Short to Ground

The fuel pressure sensor output voltage is less than 0.2933 V for 3 seconds or more when engine running (1 trip detection logic).

  • Open or short in fuel pressure sensor circuit

  • Fuel pressure sensor (fuel delivery pipe)

  • ECM

Comes on

DTC stored

SAE Code:

P0192
Tip:

When this DTC is output, check the fuel pressure (for high pressure side) in the Data List. Enter the following menus: Powertrain / Engine / Data List / All Data / Fuel Pressure (High).

DTC No.

Fuel Pressure (High)

Malfunction

P019011

Approximately 0 kPag

  • Short to ground in PR circuit

  • Short in PR to EPR circuit

  • Open in VCPR circuit

If the Data List values is normal it may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.

MONITOR DESCRIPTION

This DTC is stored if the fuel pressure sensor output voltage is out of the standard range due to an open or short in the sensor circuit.

Example:

If the fuel pressure sensor output voltage is less than 0.2933 V for 3 seconds or more, the ECM store this DTC.

MONITOR STRATEGY

Required Sensors/Components

Fuel pressure sensor

Frequency of Operation

Continuous

CONFIRMATION DRIVING PATTERN

  1. Connect the GTS to the DLC3.

  2. Turn the ignition switch to ON and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

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

  5. Turn the ignition switch to ON and turn the GTS on.

  6. Start the engine.

  7. Idle the engine for 10 seconds.

  8. Enter the following menus: Powertrain / Engine / Trouble Codes.

  9. Read the pending DTCs.

    Tip:

    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  10. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

  11. Input the DTC: P019011.

  12. Check the DTC judgment result.

    GTS Display

    Description

    NORMAL

    • DTC judgment completed

    • System normal

    ABNORMAL

    • DTC judgment completed

    • System abnormal

    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions

    N/A

    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
    Tip:

    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM

A330721E21

CAUTION / NOTICE / HINT

Tip:

Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (FUEL PRESSURE SENSOR - ECM)

    1. Disconnect the fuel pressure sensor connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance (for M/T Models)

      Tester Connection

      Condition

      Specified Condition

      B193-1 (VC) - B208-136 (VCPR)

      Always

      Below 1 Ω

      B193-3 (PR) or B208-103 (PR) - Body ground and other terminals

      Always

      10 kΩ or higher

      Standard Resistance (for CVT Models)

      Tester Connection

      Condition

      Specified Condition

      B211-1 (VC) - B208-136 (VCPR)

      Always

      Below 1 Ω

      B211-3 (PR) or B208-103 (PR) - Body ground and other terminals

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL PRESSURE SENSOR)

    A332083C09

    *a

    Front view of wire harness connector

    (to Fuel Pressure Sensor)

    *1

    for M/T Models

    *2

    for CVT Models

    1. Disconnect the fuel pressure sensor connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage (for M/T Models)

      Tester Connection

      Condition

      Specified Condition

      B193-1 (VC) - B193-2 (E2)

      Ignition switch ON

      4.5 to 5.5 V

      Standard Voltage (for CVT Models)

      Tester Connection

      Condition

      Specified Condition

      B211-1 (VC) - B211-2 (E2)

      Ignition switch ON

      4.5 to 5.5 V

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE FUEL DELIVERY PIPE (FUEL PRESSURE SENSOR)

    Click here

    NG

    REPLACE ECM

    Click here