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Home >> Toyota >> 2019 >> 86 Base, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (2 Of 6) >> SFI System >> DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem [06/2016 - 07/2018] >> Procedure
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DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem [06/2016 - 07/2018]: Procedure

  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0116) 
    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 / Trouble Codes.
    5. Read DTCs.
      RESULT

      Result Proceed to
      DTC P0116 is output A
      DTC P0116 and other DTCs are output B

      HINT: 

      If any DTCs and other than P0116 are output, troubleshoot those DTCs first.

    Result: 

    GO TO DTC CHART 

    (Refer to DIAGNOSTIC TROUBLE CODE CHART [06/2016 - 03/2017] , or refer to DIAGNOSTIC TROUBLE CODE CHART [03/2017 - 07/2018] )

    Result: 

    See step  2

  2. INSPECT THERMOSTAT 
    1. Inspect the thermostat (thermostat opening temperature) (Refer to INSPECTION [06/2016 - ] ).

    Result: 

    OK 

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR 

    (Refer to REMOVAL [06/2016 - ] )

    Result: 

    NG 

    REPLACE THERMOSTAT 

    (Refer to REMOVAL [06/2016 - ] )