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Home >> Toyota >> 2020 >> Corolla L >> Repair and Diagnosis >> External Pages >> Different car >> Section 353 (Meter / Gauge System (Except 12.3 Inch) Symptom Tests (2 Of 2) & Circuit Tests) >> METER / GAUGE SYSTEM (except 12.3 Inch Display) >> Engine Coolant Temperature Receiver Gauge Malfunction [09/2022 - 11/2022] >> Procedure

Engine Coolant Temperature Receiver Gauge Malfunction [09/2022 - 11/2022]: Procedure

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  1. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if CAN communication system DTCs are output.

      for Gasoline Model TMC Made: Refer to DIAGNOSIS SYSTEM [09/2022 - 11/2022]

      for Gasoline Model except TMC Made: Refer to DIAGNOSIS SYSTEM [09/2022 - 11/2022]

      for HV Model: Refer to DIAGNOSIS SYSTEM [09/2022 - 11/2022]

      Result

      Result Proceed to
      DTCs are not output A
      DTCs are output B

    Result: 

    B 

    GO TO CAN COMMUNICATION SYSTEM 

    for Gasoline Model TMC Made: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2022 - 11/2022]

    for Gasoline Model except TMC Made: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2022 - 11/2022]

    for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2022 - ]

    Result: 

    A 

    See step  2

  2. CHECK FOR DTC (SFI SYSTEM) 
    1. Check if SFI system DTCs are output.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTCs are output B

    Result: 

    B 

    GO TO SFI SYSTEM 

    for HV Model (for 2ZR-FXE): Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2022 - 09/2024]

    for Gasoline Model (for M20A-FKS): Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2022 - 11/2022]

    for Gasoline Model (for 2ZR-FAE): Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2022 - 11/2022]

    Result: 

    A 

    See step  3

  3. READ VALUE USING GTS (COOLANT TEMPERATURE) 
    1. Using the GTS, read the Data List.

      Body Electrical > Combination Meter > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Coolant Temperature Engine coolant temperature Min.: 0°C (0°F), Max.: 127.0°C (260.6°F) 75 to 100°C (167 to 212°F): After warming up the engine -

      Body Electrical > Combination Meter > Data List 

      Tester Display
      Coolant Temperature

      for M20A-FKS:

      Powertrain > Engine > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Coolant Temperature Engine coolant temperature Min.: -40°C (-40°F), Max.: 140°C (284°F) 75 to 100°C (167 to 212°F): After warming up This is the engine coolant temperature.

      HINT: 

      • After warming up the engine, the engine coolant temperature will be 75 to 100°C (167 to 212°F).
      • After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature will be approximately equal.
      • If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted.
      • Check if the engine overheats if the value indicated is higher than 135°C (275°F).

      Powertrain > Engine > Data List 

      Tester Display
      Coolant Temperature

      for 2ZR-FAE:

      Powertrain > Engine > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Coolant Temperature Engine coolant temperature Min.: -40°C (-40°F), Max.: 140°C (284°F) 75 to 100°C (167 to 212°F): After warming up This is the engine coolant temperature.

      HINT: 

      • After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F).
      • After a long soak, the engine coolant temperature, intake air temperature, engine oil temperature and ambient air temperature are approximately equal.
      • If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted.
      • Check if the engine overheats when the value indicates higher than 135°C (275°F).

      Powertrain > Engine > Data List 

      Tester Display
      Coolant Temperature

      for 2ZR-FXE:

      Powertrain > Engine > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Coolant Temperature Engine coolant temperature Min.: -40°C (-40°F), Max.: 140°C (284°F) 75 to 100°C (167 to 212°F): After warming up This is the engine coolant temperature.

      HINT: 

      • After warming up the engine, the engine coolant temperature will be 75 to 100°C (167 to 212°F).
      • After a long soak, the engine coolant temperature, intake air temperature, ambient air temperature and radiator coolant temperature will be approximately equal.
      • If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted.
      • Check if the engine overheats if the value indicated is higher than 135°C (275°F).

      Powertrain > Engine > Data List 

      Tester Display
      Coolant Temperature

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    GO TO SFI SYSTEM 

    for HV Model (for 2ZR-FXE): Refer to HOW TO PROCEED WITH TROUBLESHOOTING [01/2019 - ]

    for Gasoline Model (for M20A-FKS): Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

    for Gasoline Model (for 2ZR-FAE): Refer to HOW TO PROCEED WITH TROUBLESHOOTING [01/2019 - 11/2022]

    Result: 

    NG 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [09/2022 - 11/2022]

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