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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (2 Of 6) >> Engine (ECM) >> P0181 FTT Sensor >> DTC Description >> VR30DDTT engine >> DTC Detection Logic
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DTC Detection Logic

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0181

FTT SENSOR

(Fuel temperature sensor a circuit range/performance)

A

Rationally incorrect voltage from the sensor is sent to ECM, compared with the voltage signals from ECT sensor 1 and intake air temperature sensor 1.

B

The comparison result of signals transmitted to ECM from each temperature sensor (IAT sensor 1, ECT sensor 1, 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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