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DTC P0118 [L3]: Notes

DTC P0118 (L3) DETECTION CONDITION & POSSIBLE CAUSES

DTC P0118 ECT sensor circuit high input
DETECTION CONDITION 
  • The PCM monitors the ECT sensor signal at PCM terminal 2AH. If the PCM detects the ECT sensor voltage is above 4.58 V for 5s  , the PCM determines that the ECT sensor circuit has malfunction.

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.
  • The DTC is-stored in the PCM memory.
POSSIBLE CAUSE 
  • ECT sensor connect or terminal malfunction
  • ECT sensor malfunction
  • Short to power supply in wiring harness between ECT sensor terminal A and PCM terminal 2AH
  • Open circuit in wiring harness between ECT sensor terminal A and PCM terminal 2AH
  • Open circuit in wiring harness between ECT sensor terminal B and PCM terminal 2AV
  • PCM malfunction
G06149031
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