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Engine-Codes – Generic – P2068

P2068 Code - Fuel Level Sensor 2 Circuit High Voltage

Quick Answer

The P2068 diagnostic trouble code (DTC) relates to the Fuel Level Sensor 2 Circuit being at a high voltage. Common causes include Faulty fuel level sensor, Damaged wiring or connectors in the circuit, Issues with the powertrain control module (PCM). 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
P2068 indicates Fuel Level Sensor 2 Circuit High Voltage.
Common causes
Common causes include Faulty fuel level sensor, Damaged wiring or connectors in the circuit, Issues with the powertrain control module (PCM).
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P2068 Description

The P2068 diagnostic trouble code (DTC) relates to the Fuel Level Sensor 2 Circuit being at a high voltage. This means that the fuel level sensor, which is responsible for detecting the amount of fuel in the tank and sending this information to the vehicle's fuel gauge, is experiencing an electrical issue. In this case, the sensor is sending a signal indicating that the fuel level is higher than it actually is, potentially causing inaccuracies in the fuel gauge reading.

OBDII Code P2068 - Fuel Level Sensor 2 Circuit High Voltage
P2068 Code - Fuel Level Sensor 2 Circuit High Voltage

Common Causes of P2068

  1. Faulty fuel level sensor
  2. Damaged wiring or connectors in the circuit
  3. Issues with the powertrain control module (PCM)
  4. Corrosion or debris in the fuel tank affecting sensor readings
  5. Electrical issues in the fuel system

Symptoms of P2068

  1. Inaccurate fuel level readings on the dashboard
  2. Check engine light illuminated on the dashboard
  3. Vehicle stalling due to running out of gas unexpectedly
  4. Reduced fuel efficiency

How to Fix P2068

  1. Diagnose the issue using a scan tool to confirm the P2068 code and pinpoint the exact cause of the high voltage reading.
  2. Inspect the fuel level sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the sensor's resistance and voltage to determine if it is functioning correctly.
  4. Replace the faulty fuel level sensor if necessary, ensuring proper installation and calibration.
  5. Clear the DTC and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P2068

The cost of repairing the P2068 code related to the Fuel Level Sensor 2 Circuit High Voltage can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the repair costs for this type of issue can range from $150 to $400. This estimate includes the cost of a new fuel level sensor, any necessary wiring repairs, and labor charges. It's important to note that the actual cost may differ based on the vehicle make and model, the location of the repair shop, and any additional diagnostic time required. It's recommended to consult with a professional mechanic for an accurate estimate tailored to your specific situation.

What does this mean?

Tech Notes for P2068

A 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.

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Code P2068 Information for Specific Makes

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.

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