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Home >> Mazda >> 2006 >> 6 Mazdaspeed >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3 With TC) >> DTC P0116 >> Notes
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DTC P0116: Notes

DTC P0116 DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0116 ECT 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 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 circuit range/performance problem.

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • The MIL illuminates if the PCM detects the above malfunction condition during first drive cycle.
  • FREEZE FRAME DATA is available.
  • DTCs are stored in the PCM memory.
POSSIBLE CAUSE 
  • ECT sensor malfunction
  • Connector or terminal malfunction
  • PCM malfunction
G04324098Courtesy of MAZDA MOTORS CORP.