DTC P0118: Notes
DTC P0118 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0118 |
ECT circuit high input |
| DETECTION CONDITION |
- The PCM monitors ECT sensor signal at PCM terminal 41. 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).
- The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.
- PENDING CODE is available if the PCM detects the above malfunction condition.
- FREEZE FRAME DATA is available.
- DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- ECT sensor malfunction
- Connector or terminal malfunction
- Open circuit between ECT sensor terminal A and PCM terminal 41
- Short to power circuit between ECT sensor terminal A and PCM terminal 41
- Open circuit between ECT sensor terminal B and PCM terminal 20
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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