SFI SYSTEM, Diagnostic DTC:P052012,P052014,P052024,P05202A and 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

A107720E14

The oil pump is a variable discharge type. The oil pump maintains the oil pressure in the required for VVT operation at low engine speeds and for lubrication at high engine speeds, and reduces friction to lower excess oil pressure at middle engine speeds. The oil pressure sender gauge assembly detects the engine oil pressure.

The oil pressure sender gauge assembly is a semiconductor type pressure sensor whose characteristic resistance changes when pressure is applied. Through this the engine oil pressure is converted into an output voltage which is then amplified and sent to the ECM as the engine oil pressure signal.

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 for 5 seconds or more (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 Code:

P0523

P052014

Engine Oil Pressure Sensor/Switch "A" Circuit Short to Ground or Open

The oil pressure sender gauge assembly output voltage is less than 0.23 V for 5 seconds or more (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 Code:

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 Code:

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 certain period of 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 Code:

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 Code:

P0524

MONITOR DESCRIPTION

The ECM calculates the engine oil pressure based on the output voltage of the oil pressure sender gauge assembly. If any of the following are detected, the ECM will illuminate the MIL and store a DTC.

  • The output voltage of the oil pressure sender gauge assembly is outside of the specified range.

  • The actual output voltage of the oil pressure sender gauge assembly is different than the estimated output voltage based on the engine speed.

  • The oil pressure sender gauge assembly output voltage does not change for a certain period of time.

MONITOR STRATEGY

Frequency of Operation

Continuous

CONFIRMATION DRIVING PATTERN

A331687E02

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

  7. With the vehicle is stationary, gently depress the accelerator pedal and maintain an engine speed of 4000 rpm for 1 minute, then release the accelerator pedal and return to the engine idling [B].

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

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

  10. 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.

  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
    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

A359308E03

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

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    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 hereClick hereClick here

    A

  2. CHECK ENGINE OIL LEVEL

    1. Check the engine oil level.

    2. Check the state of the oil level warning light (indicator).

      Result

      Result

      Proceed to

      Engine oil level is low and oil level warning light (indicator) is illuminated

      A

      Engine oil level is within the specified range and oil level warning light (indicator) is not illuminated

      B
      Tip:

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

    B

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

    A

  3. INSPECT FOR ENGINE OIL LEAK

    1. Check for engine oil leaks.

      OK

      There are no engine oil leaks.

      Tip:

      If there are engine oil leaks, perform repairs.

    Result

    Proceed to

    NEXT
    NEXT

  4. ADD ENGINE OIL

    1. Add engine oil.

      Click here

      Note:

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

    Result

    Proceed to

    NEXT
    NEXT

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

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

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.

      Powertrain > Engine > Clear DTCs

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

    6. Start the engine.

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

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

    9. Read the DTCs.

      Powertrain > Engine > Trouble Codes

      Result

      Result

      Proceed to

      DTCs are not output

      A

      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 / All Data / Engine Oil Temperature Sensor and Engine Oil Pressure.

        Powertrain > Engine > Data List

        Tester Display

        Engine Oil Temperature Sensor

        Engine Oil Pressure

      5. With the engine oil temperature at 75 to 85°C (167 to 185°F), read the "Engine Oil Pressure" with the engine speed at 1000 rpm.

    2. Read the oil pressure using an oil pressure gauge.

      1. Install the oil pressure gauge.

        Click here

      2. Start the engine.

      3. With the engine oil temperature at 75 to 85°C (167 to 185°F), read the oil pressure gauge with the engine speed at 1000 rpm.

    3. Compare the Data List value and the oil pressure gauge reading.

      OK

      Data List value and gauge reading are within +/-50 kPa of each other

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE OIL PRESSURE SENDER GAUGE ASSEMBLYClick here

    OK

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

    A248180C52

    *a

    Front view of wire harness connector

    (to Oil Pressure Sender Gauge Assembly)

    1. Disconnect the oil pressure sender gauge assembly connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      B206-3 (VC) - Body ground

      Ignition switch ON

      4.75 to 5.25 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

      B206-2 (PEO) - B208-98 (PEO)

      Always

      Below 1 Ω

      B206-1 (E2) - B208-129 (EPEO)

      Always

      Below 1 Ω

      B206-2 (PEO) or B208-98 (PEO) - Body ground and other terminals

      Always

      10 kΩ or higher

      B206-1 (E2) or B208-129 (EPEO) - Body ground and other terminals

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  9. 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

      B206-3 (VC) - B208-130 (VCPE)

      Always

      Below 1 Ω

      B206-3 (VC) or B208-130 (VCPE) - Body ground and other terminals

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE ECM

    Click hereClick here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. REPLACE OIL PRESSURE SENDER GAUGE ASSEMBLY

    1. Replace the oil pressure sender gauge assembly.

      Click here

      Result

      Proceed to

      NEXT
    NEXT

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

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.

      Powertrain > Engine > Clear DTCs

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

    6. Start the engine.

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

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

    9. Read the DTCs.

      Powertrain > Engine > Trouble Codes

      Result

      Result

      Proceed to

      DTCs are not output

      A

      DTC P052012, P052014, P052024, P05202A or P052400 is output

      B
    A

    END

    B

    REPLACE ECM

    Click hereClick here