OBD Code P0463

Fuel Level Sensor “A” Circuit High

What’s mean?

OBD2 Code P0463 Definition:
The fuel level sensor is mounted in the fuel level sensor unit. The sensor detects a fuel level in the fuel tank and transmits a signal to the ECM or PCM. It consists of two parts, one is mechanical float and the other side is variable resistor. Fuel level sensor output voltage changes depending on the movement of the fuel mechanical float.

Symptoms

Possible sumptoms of P0463
– Engine Light ON (or Service Engine Soon Warning Light)

Possible Causes

Possible causes of P0463
– Fuel level sersor circuit harness or connectors is open or shorted – Fuel level sensor may be faulty The Error code is generally activated on detection of the following conditions: An excessively high voltage is sent from the sensor is sent to ECM.

Possible Solutions

Replaced fuel level sensor.