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Home >> Infiniti >> 2011 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0137 Through P0456 >> DTC P0181: FTT Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC DETECTION LOGIC

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P0181 FTT SENSOR [Fuel tank temperature sensor circuit range/performance] Rationally incorrect voltage from the sensor is sent to ECM, compared with the voltage signals from engine coolant temperature sensor and intake air temperature sensor.
  • Harness or connectors (The FTT sensor circuit is open or shorted)
  • Fuel tank temperature sensor
  • Combination meter