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DTC P0116:00: Notes

DTC P0116:00 (L3 WITH TC) DETECTION CONDITION & POSSIBLE CAUSES

DTC P0116:00 ECT sensor No. 1 circuit range/performance problem
DETECTION CONDITION 
  • The PCM monitors the maximum value and the minimum value of the engine coolant temperature when the engine is started and 5 min have been passed after leaving the vehicle 6 h or more  . If the difference between the maximum and the minimum values of the engine coolant temperature is below 6°C {10.8°F}  , the PCM determines that there is an ECT sensor No. 1 circuit range/performance problem.

Diagnostic support note 
  • This is a continuous monitor (engine cooling system).
  • The MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • ECT sensor No. 1 connector or terminals malfunction
  • PCM connector or terminals malfunction
  • ECT sensor No. 1 malfunction
  • Thermostat malfunction
  • PCM malfunction
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