AutoCodes – Acura – P0463 Acura

P0463 Acura Code - Fuel Level Sensor Circuit High Voltage

Quick Answer

The Fuel Level Sensor (Fuel Gauge Sending Unit) is incorporated into the fuel pump and installed in the fuel tank. Common causes include Faulty Fuel Level Sensor (Fuel Gauge Sending Unit), 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: P0463 Acura indicates Fuel Level Sensor Circuit High Voltage.
Common causes: Common causes include Faulty Fuel Level Sensor (Fuel Gauge Sending Unit), 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.

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Code Popularity 5,722

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Dec 19, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0463 Acura Description

The Fuel Level Sensor (Fuel Gauge Sending Unit) is incorporated into the fuel pump and installed in the fuel tank. Using a built-in potentiometer and float, it converts the movement of the float to electrical signals as an output that corresponds to fuel level variations in the fuel tank. The fuel level, which is indicated by the gauge control module, is sent to the Powertrain Control Module (PCM) via the Controller Area Network (CAN). If the received voltage information from the gauge control module is high or low for a set time, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0463 Acura - Fuel Level Sensor Circuit High Voltage - AutoCodes.com — P0463 Acura Code - Fuel Level Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0463 Acura?

Faulty Fuel Level Sensor (Fuel Gauge Sending Unit)
Fuel Level Sensor harness is open or shorted
Fuel Level Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0463 Acura?

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.

What does this mean?

Code Tech Notes

Low fuel level can trigger this code. Before replacing any parts try filling up the fuel tank and erasing the engine code. If the problem persists it may be necessary to replace the fuel level sensor.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0463 Acura 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.

Need more information about the P0463 Acura code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0463 Acura Code

1. What are the common symptoms of OBDII code P0463 in an Acura related to the fuel level sensor circuit high voltage?

The common symptoms include inaccurate fuel gauge readings, fluctuating fuel gauge readings, and the fuel gauge showing full or empty when the tank is not actually at that level.

2. What are the possible causes of OBDII code P0463 in an Acura?

The code P0463 in an Acura is usually caused by a faulty fuel level sensor, a fuel pump sending unit malfunction, a corroded wiring harness, or a poor electrical connection.

3. How serious is OBDII code P0463 in an Acura?

While this code may not affect the drivability of the vehicle, it can cause inconvenience due to inaccurate fuel level readings. It is still important to address this issue to ensure the proper functioning of the fuel system.

4. Can I continue driving my Acura with OBDII code P0463?

It is not recommended to drive your Acura with code P0463 for an extended period as you may run out of fuel unexpectedly. It is best to address the issue promptly to avoid any inconvenience.

5. How can I diagnose OBDII code P0463 in my Acura?

Diagnosing this code typically involves using an OBDII scanner to retrieve the code, inspecting the fuel level sensor and related components, checking the wiring for damage, and testing the sensor's resistance.

6. What are some repair tips for fixing OBDII code P0463 in an Acura?

Repair tips include replacing the faulty fuel level sensor, inspecting and repairing any damaged wiring or connections, ensuring proper grounding, and resetting the trouble code after repairs are completed.

7. Can a DIY enthusiast fix OBDII code P0463 in an Acura?

While some experienced DIY enthusiasts may be able to diagnose and fix this issue, it is recommended to consult a professional mechanic for accurate diagnosis and repair to ensure the problem is properly resolved.

8. How much does it cost to repair OBDII code P0463 in an Acura?

The cost of repairing OBDII code P0463 in an Acura can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose to replace the sensor yourself or have a mechanic do the work.

9. Is it necessary to replace the fuel level sensor to fix OBDII code P0463 in an Acura?

In most cases, replacing the fuel level sensor is the most effective way to resolve code P0463. However, it is important to first diagnose the issue accurately to confirm that the sensor is the root cause.

10. How long does it take to repair OBDII code P0463 in an Acura?

The repair time for OBDII code P0463 can vary depending on the extent of the issue and your mechanic's efficiency. Typically, it may take a couple of hours to diagnose and repair the problem.