SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P01052A

DTC Code DTC Name
P01052A Manifold Absolute Pressure / Barometric Pressure Sensor Signal Stuck in Range

DESCRIPTION

Refer to DTC P010511.

Click here

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P01052A Manifold Absolute Pressure / Barometric Pressure Sensor Signal Stuck in Range Intake manifold pressure measured after engine start drops by less than 2 kPa [0.3 psi] compared to the intake manifold pressure (atmospheric pressure) measured before engine start (2 trip detection logic).

  • Intake system

  • Manifold absolute pressure sensor

 Comes on DTC stored SAE Code: P0106

MONITOR DESCRIPTION

When the intake manifold pressure measured after engine start drops by less than 2 kPa [0.3 psi] compared to the intake manifold pressure (atmospheric pressure) measured before engine start, the ECM interprets this as a malfunction of the manifold absolute pressure sensor and stores DTC P01052A.

MONITOR STRATEGY

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. 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 [A].

  9. Idle the engine for 10 seconds or more [B].

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

  11. 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.

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

  13. Input the DTC: P01052A.

  14. 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 [A] through [C] again.

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 P01052A)


    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 P01052A is output A
      DTC P01052A and other DTCs are output B

      Tech Tips

      If any DTCs other than P01052A are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. READ VALUE USING GTS (INTAKE MANIFOLD ABSOLUTE 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 / Intake Manifold Absolute Pressure.


      Powertrain > Engine > Data List
      Tester Display
      Intake Manifold Absolute Pressure

    5. Start the engine.

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

      Standard
      Engine Condition Intake Manifold Absolute Pressure
      Engine switch on (IG) 80 to 110 kPa (11.6 to 15.95 psi)
      Idling 20 to 40 kPa (2.9 to 5.8 psi)
      Result
      Proceed to
      OK
      NG

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

    NG

  3. CHECK INTAKE SYSTEM


    1. Check the intake system for vacuum leaks.

      Click here

      OK
      No leaks from intake system.

      Tech Tips

      Perform "Inspection After Repair" after repairing or replacing the intake system.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR Click here

    NG

    REPAIR OR REPLACE INTAKE SYSTEM