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Home >> Toyota >> 2014 >> Corolla LE Eco Plus >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Control System (2ZR-FE) - Diagnostic Codes (6 Of 7) (Model Code: ZRE172)) >> SFI System >> DTC P011B: Engine Coolant Temperature / Intake Air Temperature Correlation [08/2013 - 08/2016] >> Procedure
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DTC P011B: Engine Coolant Temperature / Intake Air Temperature Correlation [08/2013 - 08/2016]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P011B) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
    5. Read the DTCs.

      Powertrain > Engine and ECT > Trouble Codes 

      Result

      Result Proceed to
      DTC P011B is output A
      DTC P011B and other DTCs are output B

      HINT: 

      If any DTCs other than P011B are output, troubleshoot those DTCs first.

    Result: 

    B 

    Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2013 - 08/2014]  or  DIAGNOSTIC TROUBLE CODE CHART [08/2014 - 08/2015]  or  DIAGNOSTIC TROUBLE CODE CHART [08/2015 - 08/2016] 

    Result: 

    A 

    See step  2

  2. READ VALUE USING TECHSTREAM (INTAKE AIR) 
    1. Leave the vehicle for 7 hours or more.

      HINT: 

      It is necessary to leave the vehicle for 7 hours or more to create conditions similar to the DTC detection conditions.

    2. Connect the Techstream to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the Techstream on.
    5. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / Intake Air.

      Powertrain > Engine and ECT > Data List 

      Tester Display
      Intake Air
    6. Read the value displayed on the Techstream.

      Standard

      Difference between the intake air temperature and the actual outside air temperature is within 10°C (18°F).

      HINT: 

      • Temperature readings on the outside temperature gauge of the vehicle (if equipped) are not suitable for comparing to the intake air temperature reading. The outside temperature gauge has a significant delay built in to prevent swings in the temperature display. Use an accurate thermometer to determine the outside air temperature.
      • Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

        Refer to INITIALIZATION [08/2013 - 08/2016]

    Result: 

    NG 

    REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to  REMOVAL [08/2013 - ] 

    Result: 

    OK 

    See step  3

  3. READ VALUE USING TECHSTREAM (COOLANT TEMP) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Primary / Coolant Temp.

      Powertrain > Engine and ECT > Data List 

      Tester Display
      Coolant Temp
    5. Read the value displayed on the Techstream.

      Standard

      The difference between the coolant temperature and the actual outside air temperature is within 10°C (18°F).

      HINT: 

      • If the result is not as specified, check that there are no heat sources such as a block heater in the engine compartment.
      • Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.

        Refer to INITIALIZATION [08/2013 - 08/2016]

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [08/2013 - 08/2016] 

    Result: 

    NG 

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to  REMOVAL [08/2013 - ] 

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