SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P052012, P052014, P052024, P05202A, P052400

DTC Code DTC Name
P052012 Engine Oil Pressure Sensor/Switch "A" Circuit Short to Battery
P052014 Engine Oil Pressure Sensor/Switch "A" Circuit Short to Ground or Open
P052024 Engine Oil Pressure Sensor/Switch "A" Signal Stuck High
P05202A Engine Oil Pressure Sensor/Switch "A" Signal Stuck in Range
P052400 Engine Oil Pressure Too Low

DESCRIPTION

The oil pump is a 3-stage variable discharge oil pump. It maintains the oil pressure in the low-speed range required for VVT operation or the high-speed range required for lubrication, and reduces friction to lower the excess oil pressure in the mid-speed range. The oil pressure sender gauge assembly detects the engine oil pressure.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P052012 Engine Oil Pressure Sensor/Switch "A" Circuit Short to Battery The oil pressure sender gauge assembly output voltage is higher than 4.78 V (1 trip detection logic).

  • Open or short in oil pressure sender gauge assembly circuit

  • Oil pressure sender gauge assembly

  • ECM

 Comes on DTC stored SAE: P0523
P052014 Engine Oil Pressure Sensor/Switch "A" Circuit Short to Ground or Open The oil pressure sender gauge assembly output voltage is below 0.23 V (1 trip detection logic).

  • Open or short in oil pressure sender gauge assembly circuit

  • Oil pressure sender gauge assembly

  • ECM

 Comes on DTC stored SAE: P0522
P052024 Engine Oil Pressure Sensor/Switch "A" Signal Stuck High The oil pressure sender gauge assembly output voltage is higher than the threshold value (1 trip detection logic).

  • Open or short in oil pressure sender gauge assembly circuit

  • Oil pressure sender gauge assembly

  • ECM

 Comes on DTC stored SAE: P0521
P05202A Engine Oil Pressure Sensor/Switch "A" Signal Stuck in Range The oil pressure sender gauge assembly output voltage is the same value for a fixed time (1 trip detection logic).

  • Open or short in oil pressure sender gauge assembly circuit

  • Oil pressure sender gauge assembly

  • ECM

 Comes on DTC stored SAE: P0521
P052400 Engine Oil Pressure Too Low The oil pressure sender gauge assembly output voltage is at or below the threshold value (1 trip detection logic).

  • Open or short in oil pressure sender gauge assembly circuit

  • Oil pressure sender gauge assembly

  • ECM

  • Engine oil amount insufficient

 Comes on DTC stored SAE: P0524

MONITOR DESCRIPTION

The ECM calculates the engine oil pressure from the oil pressure sender gauge assembly output voltage. If the oil pressure sender gauge assembly output voltage is outside the normal range, if the oil pressure sender gauge assembly output voltage assumed from the engine speed does not match the actual oil pressure sender gauge assembly output voltage, or if the oil pressure sender gauge assembly output voltage does not change for a fixed time, there may be a malfunction in the oil pressure sender gauge assembly or an open or short circuit. In this case, the ECM illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Required Sensors/Components Engine oil pressure sensor
Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN

B008IDIE01

  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on

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

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

  5. Turn the engine switch on (IG) and turn the GTS on.

  6. 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].

  7. When the vehicle is stationery, gently depress the accelerator pedal until the engine speed increases to 4000 rpm for 1 minute, then release the accelerator pedal to return to the idling speed [B].

  8. Repeat step [B] 3 times or more.

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

  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: P052012, P052014, P052024, P05202A or P052400.

  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
    N/A

    • Unable to perform DTC judgment

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

    Tech Tips


    • 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 steps [B] and [C] again.

WIRING DIAGRAM

B008GKNE04
*a VCPE
*b PEO
*c EPEO
*d Oil Pressure Sender Gauge Assembly

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 ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P052012, P052014, P052024, P05202A OR P052400)


    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 P052012, P052014, P052024, P05202A or P052400 is output A
      DTC P052012, P052014, P052024, P05202A or P052400 and P15EA12 or P15EA14 are output B

    B

    GO TO DTC CHART Click here

    A

  2. CHECK ENGINE OIL LEVEL


    1. Check the engine oil level.

    2. Check the state of the oil level warning light.

      Result
      Result Proceed to
      Engine oil level is low and oil level warning light is illuminated A
      Engine oil level is within the specified range and oil level warning light is not illuminated B

      Tech Tips

      If the oil level warning light is not illuminated even though the engine oil level is lower than the Low mark, or the oil level warning light is illuminated even though the engine oil level is within the specified range, inspect the oil level sensor and related parts for malfunctions.


    B

    CHECK WHETHER DTC OUTPUT RECURS (DTC P052012, P052014, P052024, P05202A OR P052400) Click here

    A

  3. CHECK ENGINE OIL LEAKS


    1. Check for engine oil leaks.

      Result
      If there are engine oil leaks, perform repairs.
      Result
      Proceed to
      NEXT

    NEXT

  4. ADD ENGINE OIL


    1. Add engine oil.

      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK WHETHER DTC OUTPUT RECURS (DTC P052012, P052014, P052024, P05202A OR P052400)


    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.

    6. Turn the engine switch on (IG).

    7. Turn the GTS on.

    8. Start the engine and warm it up.

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

    10. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.

    11. Read the pending DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC is not output A
      DTC DTC P052012, P052014, P052024, P05202A or P052400 is output B

    A

    END

    B

  6. INSPECT OIL PRESSURE SENDER GAUGE ASSEMBLY


    1. Read the value displayed on the GTS.


      1. Connect the GTS to the DLC3.

      2. Start the engine.

      3. Turn the GTS on.

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


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

      5. When the engine oil temperature is 75°C to 85°C, read the "Engine Oil Pressure" at 1000 rpm.

    2. Read the oil pressure gauge.


      1. Install the oil pressure gauge.

        Click here

      2. Start the engine.

      3. When the engine oil temperature is 75°C to 85°C, read the oil pressure gauge at 1000 rpm.

    3. Compare the value in the Data List using the GTS and the oil pressure gauge value in the measured results.

      Standard
      Values match (within +/-50 kPa (gauge))
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OIL PRESSURE SENDER GAUGE ASSEMBLY Click here

    OK

  7. CHECK TERMINAL VOLTAGE (POWER SOURCE OF OIL PRESSURE SENDER GAUGE ASSEMBLY)


    1. B008H8GC06
      *a

      Front view of wire harness connector

      (to Oil Pressure Sender Gauge Assembly)

      Disconnect the oil pressure sender gauge assembly.

    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
      C17-3 (VC) - Body ground Engine switch on (IG) 4.5 to 5.5 V
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (OIL PRESSURE SENDER GAUGE ASSEMBLY - ECM) Click here

    OK

  8. CHECK HARNESS AND CONNECTOR (OIL PRESSURE SENDER GAUGE ASSEMBLY - ECM)


    1. Disconnect the oil pressure sender gauge 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
      C17-2 (PEO) - C20-98 (PEO) Always Below 1 Ω
      C17-1 (E2) - C20-129 (EPEO) Always Below 1 Ω
      C17-2 (PEO) or C20-98 (PEO) - Body ground and other terminals Always 10 kΩ or higher
      C17-1 (E2) or C20-129 (EPEO) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK WHETHER DTC OUTPUT RECURS (DTC P052012, P052014, P052024, P05202A OR P052400)


    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.

    6. Turn the engine switch on (IG).

    7. Turn the GTS on.

    8. Start the engine and warm it up.

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

    10. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.

    11. Read the pending DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC is not output A
      DTC DTC P052012, P052014, P052024, P05202A or P052400 is output B

    A

    END

    B

    REPLACE ECM Click here

  10. CHECK HARNESS AND CONNECTOR (OIL PRESSURE SENDER GAUGE ASSEMBLY - ECM)


    1. Disconnect the oil pressure sender gauge 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
      C17-3 (VC) - C20-130 (VCPE) Always Below 1 Ω
      C17-3 (VC) or C20-130 (VCPE) - 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

  11. REPLACE OIL PRESSURE SENDER GAUGE ASSEMBLY


    1. Replace the oil pressure sender gauge assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 9 Click here