SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P052477, P15F009, P15F077, P15F109, P15F177

DTC Code DTC Name
P052477 Engine Oil Pressure Too Low (Severe)
P15F009 Engine Oil Pressure Too Low (Moderate)
P15F077 Engine Oil Pressure Too Low (Minor)
P15F109 Variable Oil Pump Component Failure
P15F177 Variable Oil Pump Commanded Position Not Reachable

DESCRIPTION

Variable oil pump control uses the oil pressure control valve assembly, engine oil temperature sensor, oil pressure sensor and ECM to optimize the oil pressure and oil volume required by each component to reduce friction by monitoring the engine temperature and engine speed.

The ECM drives the oil pressure control valve assembly based on the oil pressure measured by the oil pressure sensor. The oil pressure is controlled by operating the oil pressure control valve assembly to regulate the amount of discharge oil.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P052477 Engine Oil Pressure Too Low (Severe) When the engine is running, the oil pressure value output from the oil pressure sensor is less than the target value (1 trip detection logic).

  • Oil pressure control valve assembly

  • Oil pump assembly

  • Oil pressure sensor (oil pressure sender gauge assembly)

  • The engine oil level is low

  • The engine oil has deteriorated

  • ECM

 Comes on DTC stored SAE Code: P0524
P15F009 Engine Oil Pressure Too Low (Moderate) When the engine is running, the oil pressure value output from the oil pressure sensor is less than the target value (1 trip detection logic).

  • Oil pressure control valve assembly

  • Oil pump assembly

  • Oil pressure sensor (oil pressure sender gauge assembly)

  • The engine oil level is low

  • The engine oil has deteriorated

  • ECM

 Does not come on DTC stored SAE Code: P15F0
P15F077 Engine Oil Pressure Too Low (Minor) When the engine is running, the oil pressure value output from the oil pressure sensor is less than the target value (1 trip detection logic).

  • Oil pressure control valve assembly

  • Oil pump assembly

  • Oil pressure sensor (oil pressure sender gauge assembly)

  • The engine oil level is low

  • The engine oil has deteriorated

  • ECM

 Does not come on DTC stored SAE Code: P15F0
P15F109 Variable Oil Pump Component Failure When the piston oil jets are spraying oil (engine speed is 3000 rpm or more), the oil pressure is less than specified (1 trip detection logic).

  • Oil pressure control valve assembly

  • Oil pump assembly

  • Oil pressure sensor (oil pressure sender gauge assembly)

  • The engine oil level is low

  • The engine oil has deteriorated

  • ECM

 Does not come on DTC stored SAE Code: P15F1
P15F177 Variable Oil Pump Commanded Position Not Reachable When the engine is running, the target value and the value output by the oil pressure sensor differ by more than the threshold (1 trip detection logic).

  • Oil pressure control valve assembly

  • Oil pump assembly

  • Oil pressure sensor (oil pressure sender gauge assembly)

  • The engine oil level is low

  • The engine oil has deteriorated

  • ECM

 Does not come on DTC stored SAE Code: P15F1
Related Data List/Freeze Frame Data
DTC No. Data List/Freeze Frame Data
P052477

  • Engine Speed

  • Engine Oil Temperature Sensor

  • Coolant Temperature

  • Engine Oil Pressure

  • Engine Oil Pressure Control Valve

  • Target Engine Oil Pressure
P15F009
P15F077
P15F109
P15F177

MONITOR DESCRIPTION



MONITOR STRATEGY

Required Sensors/Components Oil pressure sensor
Frequency of Operation Once per driving cycle

CONFIRMATION DRIVING PATTERN

B006XVRE05

  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. Turn the engine switch on (IG).

  7. Turn the GTS on.

  8. Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off [A].

  9. When the vehicle is stationery, gradually depress the accelerator pedal to increase the engine speed to 4000 rpm over a 30 second period, run the engine speed at 4000 rpm for 1 minute, then release the accelerator pedal to return to the idling speed [B].

  10. Repeat step [B] 3 times or more [C].

  11. Enter the following menus: Powertrain / Engine / Trouble Codes [D].

  12. 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.

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

  14. Input the DTC: P052477, P15F009, P15F077, P15F109 or P15F177.

  15. 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 is malfunctioning.

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

WIRING DIAGRAM

Refer to DTC P06DA13.

Click here

CAUTION / NOTICE / HINT

Tech Tips


  • When DTC P052477 is stored, it is determined that the engine oil pressure is low (severe) and the maximum engine speed is limited.

  • When DTC P15F009 is stored, it is determined that the engine oil pressure is low (moderate) and the maximum engine speed is limited.

  • When DTC P15F077 is stored, it is determined that the engine oil pressure is low (minor) and the maximum engine speed is limited.

  • If the engine oil level is sufficient but a low engine oil level DTC is output, confirm with the customer whether engine oil was added after the vehicle had been driven with a low engine oil level.

  • A DTC may be stored if the engine oil in the oil passages was contaminated with foreign matter, etc., in the past, as the ECM performs compulsory control of the oil pressure control valve assembly to remove foreign matter from the oil pressure control valve assembly.

  • If an incorrect engine oil viscosity is used, a DTC related to low oil pressure, etc., may be stored.

  • 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 ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P052477, P15F009, P15F077, P15F109 AND/OR P15F177)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

    5. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC P052477, P15F009, P15F077, P15F109 and/or P15F177 is output A
      DTC P052477, P15F009, P15F077, P15F109 and/or P15F177 and other DTCs are output B

      Tech Tips

      If any DTCs other than P052477, P15F009, P15F077, P15F109 and/or P15F177 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. CHECK ENGINE OIL LEVEL


    1. Check the engine oil level.

      Click here

    2. Check the state of the oil level warning.

      Result
      Result Proceed to
      Engine oil level is within the specified range and oil level warning is not displayed A
      Engine oil level is low and oil level warning light (indicator) is displayed B

      Tech Tips

      If the oil level warning is not displayed even though the engine oil level is below the Low mark, or the oil level warning is displayed even though the engine oil level is within the specified range, inspect the oil level sensor and related parts.


    B

    CHECK FOR ENGINE OIL LEAK Click here

    A

  3. CHECK ENGINE OIL QUALITY


    1. Check the engine oil quality.

      Click here

    2. Check that the engine oil is not contaminated with water, deteriorated, discolored or excessively thin.

      OK
      The engine oil is not contaminated with water, deteriorated, discolored or excessively thin.
      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 7 Click here

    NG

  4. REPLACE ENGINE OIL


    1. Replace the engine oil.

      Click here

      Tech Tips

      If the oil filter has exceeded the replacement period, replace the oil filter at the same time.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 7 Click here

  5. CHECK FOR ENGINE OIL LEAK


    1. Check for engine oil leaks.

      OK
      There are no engine oil leaks.

      Tech Tips

      If there are engine oil leaks, perform the following steps after repairing or replacing the malfunctioning parts.

      Result
      Proceed to
      NEXT

    NEXT

  6. ADD ENGINE OIL


    1. Add engine oil.

      Note

      Do not add engine oil to above the full level mark.

      Result
      Proceed to
      NEXT

    NEXT

  7. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

      Result
      Proceed to
      NEXT

    NEXT

  8. CHECK WHETHER DTC OUTPUT RECURS (DTC P052477, P15F009, P15F077, P15F109 AND/OR P15F177)


    1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

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

    3. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC P052477, P15F009, P15F077, P15F109 and/or P15F177 is output A
      DTCs are not output B

    A

    GO TO STEP 10 Click here

    B

  9. READ VALUE USING GTS (ENGINE OIL PRESSURE)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Data List / Engine Speed, Engine Oil Temperature Sensor and Engine Oil Pressure.


      Powertrain > Engine > Data List
      Tester Display
      Engine Speed
      Engine Oil Temperature Sensor
      Engine Oil Pressure

    5. Start the engine and warm it up until the engine oil temperature is 75 to 85 °C (167 to 185 °F).

    6. According to the display on the GTS, read the Data List.

      Standard
      Engine Speed Engine Oil Temperature Sensor Engine Oil Pressure
      1000 rpm 75 to 85 °C (167 to 185 °F) 80 kPa(gauge) [12 psi(gauge)] or higher
      2000 rpm 80 kPa(gauge) [12 psi(gauge)] or higher
      3000 rpm 200 kPa(gauge) [29 psi(gauge)] or higher
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  10. PERFORM ACTIVE TEST USING GTS (ACTIVATE THE ENGINE OIL PRESSURE CONTROL VALVE)


    1. Remove the front fender apron seal RH.

      Click here

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the GTS on.

    5. Enter the following menus: Powertrain / Engine / Active Test / Activate the Engine Oil Pressure Control Valve.


      Powertrain > Engine > Active Test
      Tester Display
      Activate the Engine Oil Pressure Control Valve

    6. Set the Active Test item "Activate the Engine Oil Pressure Control Valve" to 900.00 mA and confirm that the oil pressure control valve assembly makes an operation sound when the oil pressure control valve assembly connector is disconnected and reconnected.

      OK
      An operation sound can be heard

      Tech Tips


      • Be sure to clear the DTCs after performing the inspection as DTCs may be stored when the oil pressure control valve assembly connector disconnected.

      • As the maximum operating current of the oil pressure control valve is 1000 mA, it is necessary to operate the oil pressure control valve within this range when setting the Active Test item "Activate the Engine Oil Pressure Control Valve" (If the Active Test request value exceeds 1000 mA, the Active Test will be suspended).

      • If the Active Test value exceeds 1000 mA, reselect the value as the Active Test will be suspended.

      Result
      Proceed to
      OK
      NG

    NG

    INSPECT OIL PRESSURE CONTROL VALVE ASSEMBLY Click here

    OK

  11. READ VALUE USING GTS (ENGINE OIL PRESSURE)


    1. Disconnect the oil pressure control valve assembly connector.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the GTS on.

    5. Enter the following menus: Powertrain / Engine / Data List / Engine Speed, Engine Oil Temperature Sensor and Engine Oil Pressure.


      Powertrain > Engine > Data List
      Tester Display
      Engine Speed
      Engine Oil Temperature Sensor
      Engine Oil Pressure

    6. Start the engine and warm it up until the engine oil temperature is 75 to 85 °C (167 to 185 °F).

    7. According to the display on the GTS, read the Data List.

      Standard
      Engine Speed Engine Oil Temperature Sensor Engine Oil Pressure
      1000 rpm 75 to 85 °C (167 to 185 °F) 100 kPa(gauge) [15 psi(gauge)] or higher
      2000 rpm 200 kPa(gauge) [29 psi(gauge)] or higher
      3000 rpm 300 kPa(gauge) [44 psi(gauge)] or higher

      Tech Tips


      • By disconnecting the oil pressure control valve assembly connector, the non-regulated oil pressure can be measured.

      • Be sure to clear the DTCs after performing the inspection as DTCs may be stored when the oil pressure control valve assembly connector disconnected.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE OIL PRESSURE CONTROL VALVE ASSEMBLY Click here

    NG

  12. CHECK ENGINE OIL PRESSURE


    1. Install the oil pressure gauge with adapter.

      Click here

    2. Disconnect the oil pressure control valve assembly connector.

    3. Connect the GTS to the DLC3.

    4. Turn the engine switch on (IG).

    5. Turn the GTS on.

    6. Enter the following menus: Powertrain / Engine / Data List / Engine Speed and Engine Oil Temperature Sensor.


      Powertrain > Engine > Data List
      Tester Display
      Engine Speed
      Engine Oil Temperature Sensor

    7. Start the engine and warm it up until the engine oil temperature is 75 to 85 °C (167 to 185 °F).

    8. According to the display on the GTS, read the Data List and check the value of the engine oil pressure gauge.

      Standard
      Engine Speed Engine Oil Temperature Sensor Engine oil pressure gauge value
      1000 rpm 75 to 85 °C (167 to 185 °F)

      100 kPa (1.0 kgf/cm2, 15 psi) or higher
      2000 rpm

      200 kPa (2.0 kgf/cm2, 29 psi) or higher
      3000 rpm

      300 kPa (3.1 kgf/cm2, 44 psi) or higher

      Tech Tips

      Be sure to clear the DTCs after reinstalling the oil pressure sensor (oil pressure sender gauge assembly) or reconnecting the oil pressure sensor (oil pressure sender gauge assembly) or oil pressure control valve assembly connector, as DTCs may be stored.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE OIL PRESSURE SENSOR (OIL PRESSURE SENDER GAUGE ASSEMBLY) Click here

    NG

    REPLACE OIL PUMP ASSEMBLY Click here

  13. INSPECT OIL PRESSURE CONTROL VALVE ASSEMBLY


    1. Inspect the oil pressure control valve assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OIL PRESSURE CONTROL VALVE ASSEMBLY Click here

    OK

  14. CHECK HARNESS AND CONNECTOR (OIL PRESSURE CONTROL VALVE ASSEMBLY - ECM)


    1. Disconnect the oil pressure control valve assembly 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
      C42-1 - C57-21 (VOP+) Always Below 1 Ω
      C42-2 - C57-20 (VOP-) Always Below 1 Ω
      C42-1 or C57-21 (VOP+) - Body ground and other terminals Always 10 kΩ or higher
      C42-2 or C57-20 (VOP-) - 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