P0464 2016 GMC Sierra Code - Fuel Level Sensor Circuit Intermittent
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
- P0464 2016 GMC Sierra indicates Fuel Level Sensor Circuit Intermittent.
- 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 P0464 2016 GMC Sierra 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 the fuel level change is greater than 10% for a duration lasting less than 30 seconds.
What are the Possible Causes of the DTC P0464 2016 GMC Sierra?
- 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 P0464 2016 GMC Sierra?
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 P0464 2016 GMC Sierra 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 P0464 2016 GMC Sierra Code
1. What are the common symptoms of OBDII code P0464 in a 2016 GMC Sierra?
The common symptoms of OBDII code P0464 in a 2016 GMC Sierra include inaccurate fuel gauge readings, fluctuating fuel gauge readings, and the fuel gauge getting stuck at a particular level.
2. What could cause the OBDII code P0464 in a 2016 GMC Sierra?
The OBDII code P0464 in a 2016 GMC Sierra is typically caused by a faulty fuel level sensor, corroded wiring or connectors related to the sensor, or a malfunctioning instrument cluster.
3. How can I diagnose the OBDII code P0464 in my 2016 GMC Sierra?
To diagnose the OBDII code P0464 in a 2016 GMC Sierra, you can use a diagnostic scanner to retrieve the trouble code, inspect the wiring and connectors related to the fuel level sensor, and test the sensor's resistance with a multimeter.
4. Is it safe to continue driving with OBDII code P0464 in a 2016 GMC Sierra?
It is not recommended to continue driving with OBDII code P0464 in a 2016 GMC Sierra, as inaccurate fuel level readings can lead to running out of fuel unexpectedly or other fuel-related issues.
5. Can I repair the OBDII code P0464 in my 2016 GMC Sierra myself?
Repairing OBDII code P0464 in a 2016 GMC Sierra may be possible for those with automotive repair experience. The repair typically involves replacing the faulty fuel level sensor, repairing or replacing damaged wiring or connectors, or addressing any issues with the instrument cluster.
6. How much does it cost to fix the OBDII code P0464 in a 2016 GMC Sierra?
The cost to fix the OBDII code P0464 in a 2016 GMC Sierra can vary depending on the root cause of the issue. Replacement of the fuel level sensor or repairing wiring/connectors can cost anywhere from $100 to $300, excluding labor charges.
7. Can a bad fuel pump cause OBDII code P0464 in a 2016 GMC Sierra?
While a bad fuel pump can potentially cause inaccurate fuel level readings, OBDII code P0464 in a 2016 GMC Sierra is specifically related to the fuel level sensor circuit, so it is more likely that the fuel level sensor itself is the culprit.
8. Will resetting the OBDII code P0464 in a 2016 GMC Sierra make it go away permanently?
Resetting the OBDII code P0464 in a 2016 GMC Sierra may temporarily clear the code, but if the underlying issue such as a faulty fuel level sensor or wiring problem is not addressed, the code is likely to reappear.
9. How long does it take to repair the OBDII code P0464 in a 2016 GMC Sierra?
The time it takes to repair OBDII code P0464 in a 2016 GMC Sierra can vary based on the specific cause of the issue and the expertise of the person performing the repairs. In general, it may take a few hours to a half-day to complete the repair.
10. Can extreme temperature changes affect OBDII code P0464 in a 2016 GMC Sierra?
Extreme temperature changes can potentially exacerbate issues related to OBDII code P0464 in a 2016 GMC Sierra, especially if there are existing problems with the fuel level sensor or its connections. It's important to address any underlying issues to prevent further complications.
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