SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P01102A

DTC Code DTC Name
P01102A Intake Air Temperature Sensor 1 Bank 1 Signal Stuck in Range

DESCRIPTION

Refer to DTC P011011.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P01102A Intake Air Temperature Sensor 1 Bank 1 Signal Stuck in Range

Either of the following conditions is met (2 trip detection logic).


  • The intake air temperature change from the previous trip warm up to the following trip is small.

  • The change in the intake air temperature after engine start is less than the threshold value.

 Mass air flow meter sub-assembly Comes on DTC stored SAE Code: P0111

MONITOR DESCRIPTION

The ECM performs OBD II monitoring based on the values from the intake air temperature sensor (mass air flow meter sub-assembly). If there is no change of the sensor value within the normal range, the ECM will not be able to perform OBD II monitoring or will misdiagnose that the sensor is malfunctioning. The ECM detects when the intake air temperature sensor value is stuck by performing monitoring after the power switch is turned off or the engine is started (short soak or long soak).

MONITOR STRATEGY

Frequency of Operation Once per driving cycle

CONFIRMATION DRIVING PATTERN

B004OZSE39

  1. Connect the GTS to the DLC3.

  2. Turn the power 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 power switch off and wait for at least 30 seconds.

  6. Turn the power switch on (IG) [A].

  7. Turn the GTS on.

  8. Put the engine in Inspection Mode (Maintenance Mode).

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  9. Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher [B].

  10. Idle the engine for 5 minutes or more [C].

    Tech Tips

    During steps [A] through [C], if the change in the intake air temperature is less than 1°C (2°F), the intake air temperature sensor (mass air flow meter sub-assembly) is malfunctioning. It is not necessary to continue this procedure.

  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: P01102A.

  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
    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 is NORMAL, the system is normal.

    • If the judgment result is ABNORMAL, the system is malfunctioning.

    • If the judgment result is INCOMPLETE or N/A, perform steps [E] and [F].

  16. With the engine running, drive the vehicle at 40 km/h (25 mph) or more for a total of 5 minutes or more [E].

    CAUTION:

    When performing the confirmation driving pattern, obey all speed limits and traffic laws.

    Tech Tips

    If the engine stops, further depress the accelerator pedal to restart the engine.

  17. Check the DTC judgment result again [F].

    Tech Tips

    If the judgment result is INCOMPLETE or N/A, perform steps [E] and [F] again.

WIRING DIAGRAM

Refer to DTC P011011.

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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 P01102A)


    1. Connect the GTS to the DLC3.

    2. Turn the power 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 P01102A and other DTCs are output A
      DTC P01102A is output B

      Tech Tips


      • If any DTCs other than P01102A are output, troubleshoot those DTCs first.

      • Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

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    A

    GO TO DTC CHART Click here

    B

    REPLACE MASS AIR FLOW METER SUB-ASSEMBLY Click here