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Engine-Codes – Dodge – P2245 Dodge

P2245 Dodge Code - O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1

Quick Answer

The P2245 diagnostic trouble code (DTC) for Dodge vehicles refers to an issue with the O2 sensor reference voltage circuit being low in Bank 1 Sensor 1. Common causes include Faulty O2 sensor, Damaged wiring or connectors in the O2 sensor circuit, ECM software issues. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P2245 Dodge indicates O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1.
Common causes
Common causes include Faulty O2 sensor, Damaged wiring or connectors in the O2 sensor circuit, ECM software issues.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2245 Dodge Description

The P2245 diagnostic trouble code (DTC) for Dodge vehicles refers to an issue with the O2 sensor reference voltage circuit being low in Bank 1 Sensor 1. This code indicates that the voltage signal from the oxygen sensor located in the front exhaust manifold on the bank 1 side of the engine is not within the expected range.

OBDII Code P2245 Dodge - O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1
P2245 Dodge Code - O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1

Common Causes of P2245 Dodge

  1. Faulty O2 sensor
  2. Damaged wiring or connectors in the O2 sensor circuit
  3. ECM software issues
  4. Exhaust leaks near the O2 sensor
  5. Water or corrosion in the O2 sensor connector

Symptoms of P2245 Dodge

  1. Check engine light illuminated on the dashboard
  2. Decreased fuel efficiency
  3. Rough idling or engine misfires
  4. Lack of power or acceleration
  5. Increased emissions

How to Fix P2245 Dodge

  1. Begin by verifying the code with a scan tool and checking for any associated freeze frame data.
  2. Inspect the wiring and connectors in the O2 sensor circuit for any damage, corrosion, or loose connections.
  3. Test the O2 sensor's reference voltage using a multimeter to determine if it is within the specified range.
  4. If the O2 sensor or wiring is faulty, replace the sensor and repair any damaged wiring or connectors.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2245 Dodge

The cost of repairing a P2245 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, replacing an O2 sensor can cost between $100 to $200 for the part alone, with additional costs for labor and diagnostic time. It is advisable to consult with a professional mechanic or dealership to get a more accurate estimate based on your vehicle's make and model.

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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 P2245 Dodge Code

1. What are the common symptoms of OBDII code P2245 in a Dodge vehicle?

The common symptoms include poor engine performance, reduced fuel efficiency, rough idling, and the illumination of the Check Engine Light.

2. What does the OBDII code P2245 "O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1" indicate in a Dodge?

This code indicates that the O2 sensor located in the exhaust system before the catalytic converter on bank 1 (cylinder bank that includes cylinder 1) is detecting a low reference voltage.

3. What are the possible causes of OBDII code P2245 in a Dodge?

Possible causes include a faulty O2 sensor, damaged wiring or connectors in the O2 sensor circuit, a faulty PCM (Powertrain Control Module), exhaust leaks, or a problem with the O2 sensor heater circuit.

4. How can I diagnose the O2 Sensor Reference Voltage Circuit Low issue in my Dodge vehicle?

Diagnosis involves inspecting the O2 sensor wiring and connectors for damage, checking the O2 sensor heater circuit, testing the O2 sensor itself, and scanning the vehicle's computer for related fault codes.

5. Can I continue driving my Dodge with the OBDII code P2245 illuminated?

It is not recommended to drive the vehicle extensively with this code illuminated, as it can lead to further damage and decreased engine performance. Prompt diagnosis and repair are advised.

6. How can I repair OBDII code P2245 in my Dodge?

Repair typically involves replacing the faulty O2 sensor, repairing any damaged wiring or connectors, addressing exhaust leaks, or replacing the PCM if necessary. Clearing the code with a diagnostic tool is also recommended after repair.

7. Are there any DIY tips for troubleshooting O2 Sensor Reference Voltage Circuit Low in a Dodge?

DIY enthusiasts can start by visually inspecting the O2 sensor wiring and connectors for any visible damage. However, for a thorough diagnosis and repair, it is recommended to consult a professional mechanic.

8. Can a dirty O2 sensor cause the OBDII code P2245 in a Dodge?

While a dirty O2 sensor can affect its performance, the OBDII code P2245 is more likely to be triggered by issues like low reference voltage, faulty wiring, or a malfunctioning sensor heater circuit.

9. How important is it to address the O2 Sensor Reference Voltage Circuit Low problem in a Dodge promptly?

It is crucial to address this issue promptly, as a malfunctioning O2 sensor can lead to decreased fuel efficiency, engine performance issues, and potential damage to the catalytic converter over time.

10. Is it necessary to reset the Check Engine Light after fixing the OBDII code P2245 in a Dodge?

Yes, it is recommended to reset the Check Engine Light using a diagnostic tool after repairing the issue to ensure that the system recognizes the problem has been resolved.

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