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ECD SYSTEM, Diagnostic DTC:P011C

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DTC Code DTC Name
P011C Charge Air Temperature/Intake Air Temperature Correlation (Bank 1)
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DESCRIPTION

Refer to DTC P0112 (Click here).

Refer to DTC P1496 (Click here).

Table 1. P011C
DTC Detection Drive Pattern DTC Detection Condition Trouble Area

After engine completely warmed up, allow engine to soak for long time (8 hours or more).

Start the engine and idle the engine for 3 minutes or more.

After the engine is completely warmed up and then allowed to soak for a long time (8 hours or more), the difference in temperature at the intake air temperature sensor and intake air temperature sensor (turbo) after turbocharger after idling for 3 minutes is 15°C (59°F) or higher.

(2 trip detection logic)

  • Open or short in intake air temperature (IAT) sensor circuit

  • Open or short in intake air temperature sensor (turbo) circuit

  • IAT sensor (built into mass air flow meter)

  • intake air temperature sensor (turbo)

  • ECM
Table 2. Related Data List
DTC No. Data List
P011C

  • Intake Air

  • Intake Air Temp (Turbo)
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WIRING DIAGRAM

Refer to DTC P0112 (Click here).

Refer to DTC P1496 (Click here).

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INSPECTION PROCEDURE

Note:

After replacing the ECM, the new ECM needs registration (Click here) and initialization (Click here).

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PROCEDURE


  1. Click here

    CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P011C)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and turn the tester on.

    3. Enter the following menus: Powertrain / Engine and ECT / DTC.

    4. Read the DTCs.

      Table 3. Result
      Result Proceed to
      P011C is output A
      P011C and other DTCs are output B

  2. Click here

    READ VALUE USING INTELLIGENT TESTER (ENGINE COOLANT TEMPERATURE)


    1. Allow the engine to soak for 1 to 2 hours.

      Tip:

      • It is not necessary to allow the engine to soak if the engine is cold.

      • The engine cools faster if the hood is opened.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch to ON and turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Coolant temp.

    5. Read the value.

      OK
      The difference between the displayed value and outside air temperature is below 5°C (9°F).
      Note:

      If the difference between "Coolant Temp" and the outside air temperature is 5°C (9°F) or higher, the heat from the engine affects the intake air temperature sensor, causing an incorrect value to be displayed. In this case, allow the engine to soak again.


  3. Click here

    READ VALUE USING INTELLIGENT TESTER (INTAKE AIR TEMPERATURE)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and turn the tester on.

    3. Enter the following menus: Powertrain / Engine and ECT / Data List / Intake Air.

    4. Read the value.

      OK
      The difference between the displayed value and outside air temperature is below 15°C (27°F).

  4. Click here

    READ VALUE USING INTELLIGENT TESTER (INTAKE AIR TEMPERATURE [TURBO])


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and turn the tester on.

    3. Enter the following menus: Powertrain / Engine and ECT / Data List / Intake Air Temp (Turbo).

    4. Read the value.

      OK
      The difference between the displayed value and outside air temperature is below 15°C (27°F).

  5. Click here

    REPLACE ECM


    1. Replace the ECM (Click here).


  6. Click here

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


    1. A01IQ4WE12

      Disconnect the mass air flow meter connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      C3-4 (THA) - C69-110 (THA) Always Below 1 Ω
      C3-5 (E2) - C69-87 (ETHA) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      C3-4 (THA) or C69-110 (THA) - Body ground Always 10 kΩ or higher
      Table 4. Text in Illustration
      *1

      Front view of wire harness connector

      (to MAF Meter)
      *2

      Front view of wire harness connector

      (to ECM)

    4. Reconnect the mass air flow meter connector.

    5. Reconnect the ECM connector.


  7. Click here

    REPLACE MASS AIR FLOW METER


    1. Replace the mass air flow meter (Click here).


  8. Click here

    CHECK HARNESS AND CONNECTOR (INTAKE AIR TEMPERATURE SENSOR (TURBO) - ECM)


    1. A01IUD4E08

      Disconnect the intake air temperature sensor (turbo) connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      B1-2 - C69-113 (THIA) Always Below 1 Ω
      B1-1 - C69-90 (ETHI) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      B1-2 or C69-113 (THIA) - Body ground Always 10 kΩ or higher
      Table 5. Text in Illustration
      *1

      Front view of wire harness connector

      (to Intake Air Temperature Sensor (Turbo))
      *2

      Front view of wire harness connector

      (to ECM)

    4. Reconnect the intake air temperature sensor (turbo) connector.

    5. Reconnect the ECM connector.


  9. Click here

    REPLACE INTAKE AIR TEMPERATURE SENSOR (TURBO)


    1. Replace the intake air temperature sensor (turbo) (Click here).


  10. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.


  11. Click here

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Allow the engine to soak for 1 to 2 hours.

      Tip:

      • It is not necessary to allow the engine to soak if the engine is cold.

      • The engine cools faster if the hood is opened.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch to ON and turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Coolant temp.

    5. Read the value.

      Note:

      If the difference between "Coolant Temp" and the outside air temperature is 5°C (9°F) or higher, the heat from the engine affects the intake air temperature sensor, causing an incorrect value to be displayed. In this case, allow the engine to soak again.

    6. Enter the following menus: Powertrain / Engine and ECT / Data List / Intake Air and Intake Air Temp (Turbo).

    7. Read the value.

      OK
      The difference between the displayed value and outside air temperature is below 15°C (27°F).

  12. Click here

    END

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