P0116 OBD-II Trouble Code: ECT Sensor Circuit Range Performance Problem

  1. we will know today, what is the p0116 error code 

     2. how to daignose error code p0116 

     3. The symptoms of the P0116 code?

     4. how to reset P0116 OBD-II Trouble Code: ECT Sensor Circuit Range Performance Problem

P0116 OBD-II Trouble Code: ECT Sensor Circuit Range Performance Problem

what is the ECT mean

The ETC mean Engine coolant temperature sensor 

                                                              ETC sensor         

-what is the p0116 error code 

P0116 is the OBD-II generic code that indicates the engine control module (ECM) ECT monitor has read that the ECT sensor range or the sensor performance is not as the ECM expected when starting from a cold start and warm shut down, to the next cold start.

What are the symptoms of the P0116 code?

  • The ECM turns on the Check Engine Light and goes into failsafe mode substituting input to 176 degrees Fahrenheit.
  • Engine may have a hard start when engine is cold and start normal when warm
  • Engine may run rough and hesitate until the engine warms up
  • Testing and replacement of ETC sensor switch
  • Testing and repairing any other ECT codes, such as P0115, P0117, P0118, P0119 or P0125
  • Engine should run close to normal once the engine warms upHow does a mechanic/Electrician diagnose the P0116 code?                                                                                                                                                                                                                                                                                                                 
    • Visually inspects for any electrical connector, wiring, or sensor issues
    • Scans and documents the codes received and views the freeze frame data to see when the code was set
    • Retests the engine to verify any faults present or tries to duplicate the fault with a wiggle test
    • Simultaneously sets codes P0115, P0117, P0118, or P0125 with DTC P0116. The ECT sensor may have an open or short circuit. Diagnoses these codes first.
    • Removes and tests the thermostat to open at the specified temperature

    Why not an Electrician/machinic resolved p0116 code Easly commen mistakes

    • Not performing a visual inspection first
    • Not following the tests for codes P0115, P0117, P0118, or P0125 first if codes were received with P0116
    • Not replacing the thermostat with correct temperature rating
    • Not trying to connect it to view the ECM data and seeing if the temperature output from the sensor is as expected before installation.

    how to rest the error code p0116

    • Testing and replacement of ETC sensor switch
    • Testing and repairing any other ECT codes, such as P0115, P0117, P0118, P0119 or P0125Will change car ECM but this in very last moment

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One Comment

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