DTC P0118: Notes

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Notes
WARNING: This page is about a different car, the 2007 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0118 DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0118 ECT circuit high input
DETECTION CONDITION 
  • The PCM monitors ECT sensor signal. If the PCM detected ECT sensor voltage above 4.58 V  , the PCM determines that the ECT sensor circuit has malfunction.

Diagnostic support note 
  • This is a continuous monitor (Engine cooling system).
  • MIL illuminates if PCM detects the above malfunction condition during first drive cycle.
  • PENDING CODE is available if PCM detects the above malfunction condition.
  • FREEZE FRAME DATA is available.
  • DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • ECT sensor malfunction
  • Open circuit between ECT sensor terminal A and PCM terminal 2AH
  • Short to power supply between ECT sensor terminal A and PCM terminal 2AH
  • Open circuit between ECT sensor terminal B and PCM terminal 2AY
  • Poor connection of ECT sensor or PCM connectors
  • PCM malfunction
G04324013Courtesy of MAZDA MOTORS CORP.
RENDER: 1.0x

NO RELATED

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