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SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P011015

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DTC Code DTC Name
P011015 Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open
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DESCRIPTION

Refer to DTC P011011.

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Tip:

When DTC P011015 is stored, the ECM enters fail-safe mode. During fail-safe mode, the intake air temperature is estimated to be 20°C (68°F) by the ECM. Fail-safe mode continues until a pass condition is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P011015 Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open The intake air temperature sensor output voltage is higher than 4.91 V for 0.5 seconds or more (1 trip detection logic).

  • Open or short in intake air temperature sensor circuit

  • Intake air temperature sensor (mass air flow meter sub-assembly)

  • ECM

 Comes on DTC stored SAE: P0113
Tip:

When a DTC is output, check the Data List item "Intake Air Temperature" using the GTS.

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DTC No. Intake Air Temperature Malfunction
P011015 -40°C (-40°F)

  • Short to +B in THA circuit

  • Open in THA circuit

  • Open in ETHA circuit

If the Data List value is normal it may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.

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MONITOR DESCRIPTION

The ECM monitors the sensor voltage and uses this value to calculate the intake air temperature. When the intake air temperature sensor output voltage deviates from the normal operating range, the ECM interprets this as a malfunction in the intake air temperature sensor circuit, illuminates the MIL and stores a DTC.

Example:

If the intake air temperature sensor output voltage is higher than 4.91 V for 0.5 seconds or more, the ECM will illuminate the MIL and store this DTC.

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MONITOR STRATEGY

Frequency of Operation Continuous
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CONFIRMATION DRIVING PATTERN


  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).

  7. Turn the GTS on.

  8. With power switch on (IG) and wait for 0.5 seconds 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: P011015.

  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
    Tip:

    • If the judgment result shows NORMAL, the system is normal.

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

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WIRING DIAGRAM

Refer to DTC P010012.

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CAUTION / NOTICE / HINT

Note:

  • Vehicle Control History may be stored in the hybrid vehicle control ECU if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.

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    (Select Powertrain in Health Check and then check the time stamp data.)

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  • If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.

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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.

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PROCEDURE


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    READ VALUE USING GTS (CHECK FOR OPEN IN WIRE HARNESS)


    1. B004UKIC07
      *1 Mass Air Flow Meter Sub-assembly
      *2 ECM
      *a

      Front view of wire harness connector

      (to Mass Air Flow Meter Sub-assembly)

      Disconnect the mass air flow meter sub-assembly connector.

    2. Connect terminals 4 (THA) and 2 (E2G) of the mass air flow meter sub-assembly connector on the wire harness side.

    3. Connect the GTS to the DLC3.

    4. Turn the power switch on (IG).

    5. Turn the GTS on.

    6. Enter the following menus: Powertrain / Engine / Data List / Intake Air Temperature.


      1. Powertrain > Engine > Data List
        Tester Display
        Intake Air Temperature




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

      OK
      Higher than 128°C (262°F)
      Tip:

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

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      Result
      Proceed to
      OK
      NG

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    CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)


    1. Disconnect the mass air flow meter sub-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
      D33-4 (THA) - D1-102 (THA) Always Below 1 Ω
      D33-2 (E2G) - D1-115 (E2G) Always Below 1 Ω
      D33-4 (THA) or D1-102 (THA) - Other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

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    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR