DTC Detection Logic
| DTC No. | Trouble Diagnosis (Trouble Diagnosis Content) |
DTC Detecting Condition | Possible Cause | |
|---|---|---|---|---|
| P0181 | FTT SENSOR [Fuel tank temperature (FTT) Sensor Circuit range/performance] |
A) | Rationally incorrect voltage from the Sensor is sent to ECM, compared with the voltage signals from ECT Sensor and intake air temperature Sensor. |
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| B) | The comparison result of signals transmitted to ECM from each temperature Sensor (ECT Sensor, EOT Sensor, and FTT Sensor) shows that the voltage signal of the FTT Sensor is higher/lower than that of other temperature Sensors when the engine is started with its cold state. |
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