AutoCodes – Acura – P0462 Acura

P0462 Acura Code - Fuel Level Sensor Circuit Low 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: P0462 Acura indicates Fuel Level Sensor Circuit Low 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 4,796

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
Comments
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Code P0462 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 P0462 Acura - Fuel Level Sensor Circuit Low Voltage - AutoCodes.com — P0462 Acura Code - Fuel Level Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0462 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 P0462 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 P0462 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.

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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.