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P0463

P0463 - Fuel Level Sensor Circuit High Input

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Possible causes
- Faulty fuel level sensor
- Fuel level sensor harness is open or shorted
- Fuel level sensor circuit poor electrical connection
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When is the code detected?
An excessively high voltage is sent from the sensor is sent to Engine Control Module (ECM).
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Incorrect fuel level reading
P0463 Description
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 Engine Control Module (ECM). The fuel level sensor consists of two parts, one is mechanical float and the other side is variable resistor. The fuel level sensor output voltage changes depending on the movement of the fuel mechanical float.
P0463 Information for specific makes
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