SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P107A11

DTC Code DTC Name
P107A11 Fuel Rail Pressure Sensor (Low) Circuit Short to Ground

DESCRIPTION

B006EMQE20

The No. 2 fuel pressure sensor (for low pressure side) replaces the fuel pressure with electrical signals and outputs them to the ECM. The ECM controls the optimal fuel pressure for the operation conditions to reduce the fuel pump power consumption and improve fuel economy.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P107A11 Fuel Rail Pressure Sensor (Low) Circuit Short to Ground The No. 2 fuel pressure sensor (for low pressure side) output voltage is less than 0.43 V for 3 seconds or more (1 trip detection logic).

  • Open or short in No. 2 fuel pressure sensor (for low pressure side) circuit

  • No. 2 fuel pressure sensor (for low pressure side)

  • ECM

 Comes on DTC stored SAE: P107C

Tech Tips

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

Click here

DTC No. Fuel Pressure (Low) Malfunction
P107A11 Approximately 0 kPag

  • Short to ground in PFL circuit

  • Short in PFL 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.

MONITOR DESCRIPTION

This DTC is stored if the No. 2 fuel pressure sensor (for low pressure side) output voltage is out of the standard range due to an open or short in the sensor circuit.

MONITOR STRATEGY

Required Sensors/Components (Main) No. 2 fuel pressure sensor (for low pressure side)
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG).

  3. Turn the GTS on.

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

  5. Turn the engine switch off and wait for at least 30 seconds.

  6. Start the engine.

  7. Idle the engine for 10 seconds or more [A].

  8. Turn the GTS on.

  9. Enter the following menus: Powertrain / Engine / Trouble Codes [B].

  10. Read the pending DTCs.

    Tech Tips


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

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

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

  12. Input the DTC: P107A11.

  13. 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

    Tech Tips


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

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

    • If the judgment result is INCOMPLETE, perform steps [A] through [B] again.

WIRING DIAGRAM

B006A2AE04
*a PFL
*b No. 2 Fuel Pressure Sensor (for Low Pressure Side)

CAUTION / NOTICE / HINT

Tech Tips

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

    Tech Tips

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


    1. Disconnect the No. 2 fuel pressure sensor (for low pressure side) connector.

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      E16-1 (VC) - E16-3 (E2) Engine switch on (IG) 4.5 to 5.5 V
      E16-2 (PFL) - E16-3 (E2) Engine switch on (IG) 3.0 to 5.0 V

    4. Turn the engine 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
      E16-1 (VC) - E16-2 (PFL) Engine switch off 171 to 189 kΩ

      Tech Tips

      Perform "Inspection After Repair" after replacing the No. 2 fuel pressure sensor (for low pressure side).

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 2 FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE) Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (NO. 2 FUEL PRESSURE SENSOR (FOR LOW PRESSURE SIDE) - ECM)


    1. Disconnect the No. 2 fuel pressure sensor (for low 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
      E16-1 (VC) - D1-96 (VCPR) Always Below 1 Ω
      E16-2 (PFL) or D1-99 (PFL) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR