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On Board Diagnosis Logic

DTC DETECTING CONDITION AND POSSIBLE CAUSE REFERENCE CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0181
0181		 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 sensor circuit is open or shorted)
  • Fuel tank temperature sensor
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