P0463 2017 GMC Sierra Code - Fuel Level Sensor Circuit High Voltage
Quick Answer
The P0463 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the fuel level sensor circuit registering a high voltage. Common causes include Faulty fuel level sensor, Wiring issues in the fuel level sensor circuit, Corrosion or damage to sensor connectors. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0463 2017 GMC Sierra indicates Fuel Level Sensor Circuit High Voltage.
- Common causes
- Common causes include Faulty fuel level sensor, Wiring issues in the fuel level sensor circuit, Corrosion or damage to sensor connectors.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0463 2017 GMC Sierra Description
The P0463 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the fuel level sensor circuit registering a high voltage. The fuel level sensor is responsible for sending information to the vehicle's fuel gauge, indicating the amount of fuel in the tank. When the sensor circuit detects a higher voltage than expected, it can lead to inaccurate fuel level readings on the gauge, potentially causing the vehicle to run out of fuel unexpectedly.
Common Causes of P0463 2017 GMC Sierra
- Faulty fuel level sensor
- Wiring issues in the fuel level sensor circuit
- Corrosion or damage to sensor connectors
- Faulty powertrain control module (PCM)
- Issues with the fuel pump or fuel system components
Symptoms of P0463 2017 GMC Sierra
- Inaccurate fuel level readings on the fuel gauge
- Fuel gauge constantly fluctuating or showing full when the tank is not
- Check Engine Light illuminated
- Engine stalling or running out of fuel unexpectedly
How to Fix P0463 2017 GMC Sierra
- Diagnose the issue by using a scan tool to read the DTC and inspecting the fuel level sensor and related wiring.
- Replace the faulty fuel level sensor if it is determined to be the cause of the high voltage reading.
- Inspect and repair any damaged wiring or connectors in the sensor circuit.
- Reset the PCM and clear the DTC to see if the issue is resolved.
- Test drive the vehicle to ensure the fuel gauge is now accurately reflecting the fuel level.
Cost to Fix P0463 2017 GMC Sierra
The cost of repairing a P0463 DTC on a 2017 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. Generally, replacing a faulty fuel level sensor can cost between $150 to $300, including parts and labor. However, if additional wiring repairs or PCM replacement is needed, the cost can increase. It's recommended to consult with a trusted mechanic or dealership to get an accurate estimate based on your vehicle's specific needs and location. Labor rates at auto repair shops typically range from $80 to $150 per hour, but can vary based on various factors.
Tech Notes for P0463 2017 GMC Sierra
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