DTC Detection Logic
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P0181 |
FTT SENSOR (Fuel temperature sensor "A" circuit range/performance) |
A |
Diagnosis condition |
-- |
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Signal (terminal) |
Fuel tank temperature sensor signal |
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Threshold |
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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Diagnosis delay time |
-- |
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B |
Diagnosis condition |
Engine cold start |
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Signal (terminal) |
Fuel tank temperature sensor signal |
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Threshold |
The comparison result of signals transmitted to ECM from each temperature sensor (IAT 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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Diagnosis delay time |
-- |
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