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Home >> Nissan-Datsun >> 2004 >> Altima SE, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control System - 3.5L >> DTC P1464: Fuel Level Sensor >> On Board Diagnosis Logic

On Board Diagnosis Logic

ECM receives two signals from the fuel level sensor.

One is fuel level sensor power supply circuit, and the other is fuel level sensor ground circuit.

This diagnosis indicates the latter to detect open circuit malfunction.

On Board Diagnosis Logic

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1464 1464 Fuel level sensor circuit ground signal A high voltage from the sensor is sent to ECM. Harness or connectors (The sensor circuit is open or shorted)