P0461 2014 Chevrolet Silverado Code - Fuel Level Sensor Performance
Quick Answer
Diesel Engine The primary fuel level sensor and the secondary fuel level sensor change resistance based on fuel level. Common causes include Faulty Fuel Level Sensor, Fuel Level Sensor harness is open or shorted, Fuel Level Sensor circuit poor electrical connection. 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
- P0461 2014 Chevrolet Silverado indicates Fuel Level Sensor Performance.
- Common causes
- Common causes include Faulty Fuel Level Sensor, Fuel Level Sensor harness is open or shorted, Fuel Level Sensor circuit poor electrical connection.
- 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.
Code P0461 2014 Chevrolet Silverado Description
The primary fuel level sensor and the secondary fuel level sensor change resistance based on fuel level. The Fuel Pump Driver Control Module monitors the signal circuits of the primary fuel level sensor and the secondary fuel level sensor and sends the signal information to the Engine Control Module (ECM) for all further handling. The ECM uses this value in order to determine the fuel level. When the fuel tank is full, the resistances of both fuel level sensors are low, and the ECM senses a low signal voltage on both the signal circuits of the primary fuel level sensor and the secondary fuel level sensor. When the fuel tank is empty, the resistances of the fuel level sensors are high, and the ECM senses a high signal voltage. The ECM uses the signal circuits of the primary fuel level sensor and the secondary fuel level sensor in order to calculate the percentage of remaining fuel in the tank. The ECM sends the fuel level percentage via the serial data circuit to the instrument cluster in order to control the fuel gauge.
Gasoline Engine
The primary fuel level sensor and the secondary fuel level sensor change resistance based on fuel level. The Engine Control Module (ECM) monitors the signal circuits of the primary fuel level sensor and the secondary fuel level sensor in order to determine the fuel level. When the fuel tank is full, the resistances of both fuel level sensors are low, and the ECM senses a low signal voltage on both the signal circuits of the primary fuel level sensor and the secondary fuel level sensor. When the fuel tank is empty, the resistances of the fuel level sensors are high, and the ECM senses a high signal voltage. The ECM uses the signal circuits of the primary fuel level sensor and the secondary fuel level sensor in order to calculate the percentage of remaining fuel in the tank. The ECM sends the fuel level percentage via the serial data circuit to the instrument cluster in order to control the fuel gauge.
The Diagnostic Trouble Code (DTC) will be set if the ECM detects a change in fuel level of less than a specified amount (typically 3 - 10 L or 0.8 - 2.6 gal) over a specified driving distance (typically 240 - 320 km or 150 - 200 miles).
What are the Possible Causes of the DTC P0461 2014 Chevrolet Silverado?
- Faulty Fuel Level Sensor
- Fuel Level Sensor harness is open or shorted
- Fuel Level Sensor circuit poor electrical connection
- Faulty Instrument Cluster
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0461 2014 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0461 2014 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0461 2014 Chevrolet Silverado Code
1. What does the OBD-II code P0461 mean on a 2014 Chevrolet Silverado?
P0461 indicates an issue with the fuel level sensor's performance, meaning the sensor is not accurately reporting fuel level data to the ECM.
2. What are the common symptoms of P0461 in a 2014 Silverado?
Symptoms may include an inaccurate fuel gauge reading, the check engine light turning on, difficulty determining fuel levels, or erratic fuel gauge behavior.
3. What causes the P0461 code to appear on a 2014 Chevrolet Silverado?
Common causes include a faulty fuel level sensor, wiring or connector issues, a malfunctioning fuel pump module, or corrosion in the fuel tank or electrical connections.
4. Can a bad fuel level sensor trigger the P0461 code?
Yes, a malfunctioning fuel level sensor is one of the primary causes of the P0461 code.
5. How do I diagnose the P0461 code on my Silverado?
Start by using a scan tool to verify the code, inspect the fuel level sensor and its wiring for damage or corrosion, and check for proper voltage and resistance at the sensor.
6. Is it safe to drive with the P0461 code on a 2014 Chevrolet Silverado?
While the truck may still be drivable, you may not get accurate fuel level readings, increasing the risk of running out of fuel unexpectedly.
7. How can I fix the P0461 code on my Silverado?
Repairs may include replacing the fuel level sensor, repairing damaged wiring or connectors, or cleaning corrosion from electrical contacts.
8. Can a bad fuel pump cause the P0461 code on a 2014 Silverado?
Yes, since the fuel level sensor is often integrated with the fuel pump module, issues with the pump or its connections can cause this code.
9. How much does it cost to repair a P0461 code on a 2014 Chevrolet Silverado?
Repair costs vary but typically range from $200 to $600, depending on whether the fuel level sensor or fuel pump module needs replacement.
10. Will clearing the P0461 code fix the issue permanently?
No, clearing the code will only reset the check engine light temporarily. The underlying problem must be resolved to prevent the code from returning.
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