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Home >> Mazda >> 2011 >> 2 Touring, 1.5 Z, Standard >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System MZR 1.5] >> DTC P0116:00 >> Notes

DTC P0116:00: Notes

DTC P0116:00 (MZR 1.5) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0116:00 ECT sensor No. 1 circuit range/performance problem
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 {43 °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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