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Home >> Mazda >> 2006 >> 5 Touring, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3) >> DTC P0116 >> Notes
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DTC P0116: Notes

DTC P0116 [L3] CHART

DTC P0116 Engine coolant temperature circuit range/performance
DETECTION CONDITION 
  • The PCM monitors the maximum value and minimum value of engine coolant temperature when the engine is started and 5 min have been passed after leaving the vehicle 6 h or more.  If difference between maximum and minimum values of engine coolant temperature is below 6 °C {10.8 °F}  the PCM determines that there is an ECT circuit range/performance problem.

    • Diagnostic support note 

  • This is a continuous monitor (Engine cooling system).
  • MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
  • FREEZE FRAME DATA is available.
  • DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • ECT sensor malfunction
  • Connector or terminal malfunction
  • PCM malfunction
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