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SFI SYSTEM, Diagnostic DTC:P0116

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DTC Code DTC Name
P0116 Engine Coolant Temperature Circuit Range / Performance Problem
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DESCRIPTION

Refer of DTC P0115 (Click here).

DTC No. DTC Detection Condition Trouble Area
P0116

Either of the following conditions is met (2 trip detection logic):


  • When engine is started cold and warmed up, the engine coolant temperature sensor value does not change.

  • After the warmed up engine is stopped and then next cold engine start is performed, the engine coolant temperature sensor value does not change.

  • Thermostat

  • Engine coolant temperature sensor
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INSPECTION PROCEDURE

Tip:

  • If any of DTCs P0115, P0117 and P0118 are set simultaneously with DTC P0116, the engine coolant temperature sensor may have an open or a short circuit. Troubleshoot those DTCs first.

  • Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

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PROCEDURE


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    CHECK ANY OTHER DTC OUTPUT (IN ADDITION TO DTC P0116)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine / DTC.

    5. Read the DTCs.

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

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


  2. Click here

    INSPECT THERMOSTAT


    1. Remove the thermostat (Click here).

    2. Check the valve opening temperature of the thermostat.

      Standard
      80 to 84°C (176 to 183°F)
      Tip:

      In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard.

    3. Reinstall the thermostat (Click here).


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    GO TO DTC CHARTClick here

  4. Click here

    REPLACE THERMOSTATClick here

  5. Click here

    REPLACE ENGINE COOLANT TEMPERATURE SENSORClick here