AutoCodes – Acura – P2245 Acura

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

Quick Answer

The Front Oxygen Sensor (O2 Sensor 1) is placed into the exhaust manifold. Common causes include Faulty Front Oxygen Sensor Bank 1, Front Oxygen Sensor Bank 1 harness is open or shorted, Front Oxygen Sensor Bank 1 circuit poor electrical connection. 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 Acura indicates O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1.
Common causes: Common causes include Faulty Front Oxygen Sensor Bank 1, Front Oxygen Sensor Bank 1 harness is open or shorted, Front Oxygen Sensor Bank 1 circuit poor electrical connection.
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.

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Code Popularity 3,420

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2245 Acura Description

The Front Oxygen Sensor (O2 Sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

OBDII Code P2245 Acura - O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1 - AutoCodes.com — P2245 Acura Code - O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P2245 Acura?

Faulty Front Oxygen Sensor Bank 1
Front Oxygen Sensor Bank 1 harness is open or shorted
Front Oxygen Sensor Bank 1 circuit poor electrical connection

How to Fix the DTC P2245 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2245 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.

Frequently Asked Questions about P2245 Acura Code

1. What are the common symptoms of OBDII code P2245 in an Acura?

- Common symptoms include poor fuel efficiency, rough idling, and a noticeable decrease in engine performance.

2. What causes the O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1 code in an Acura?

- The code is typically triggered by a faulty oxygen (O2) sensor, damaged wiring or connectors, or a malfunctioning powertrain control module (PCM).

3. How serious is the P2245 code in an Acura?

- While the vehicle may still be operable with this code, it is important to address it promptly to prevent potential damage to the catalytic converter and other engine components.

4. Can I continue driving my Acura with the P2245 code present?

- It is not recommended to continue driving the vehicle with this code active, as it can lead to decreased fuel efficiency and potential long-term damage.

5. How can I diagnose the O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1 issue in my Acura?

- Diagnosis typically involves using an OBDII scanner to read the fault code, checking the wiring and connectors for damage, and testing the O2 sensor's functionality.

6. What are some repair tips for fixing the P2245 code in an Acura?

- Repair tips include replacing the faulty O2 sensor, repairing or replacing damaged wiring or connectors, and resetting the fault code with an OBDII scanner after making repairs.

7. How much does it cost to repair the O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1 code in an Acura?

- Repair costs can vary depending on the exact cause of the issue, but typically range from $200 to $500 for parts and labor.

8. Can I reset the P2245 code in my Acura without making any repairs?

- While you can clear the code with an OBDII scanner, it is important to address the underlying issue to prevent the code from reoccurring.

9. How long does it take to repair the O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1 code in an Acura?

- The repair time can vary depending on the extent of the issue, but typically takes 1-2 hours for a professional mechanic to diagnose and fix the problem.

10. Will the P2245 code cause my Acura to fail an emissions test?

- Yes, the presence of this code may cause your Acura to fail an emissions test, as it indicates an issue with the O2 sensor and emissions control system.