Engine-Codes.com
Engine-Codes – Toyota – P2252 2010 Toyota Camry

P2252 2010 Toyota Camry Code - Oxygen A/F Sensor Reference Ground Circuit Low Bank 1 Sensor 1

Quick Answer

The diagnostic trouble code (DTC) P2252 in a 2010 Toyota Camry indicates a problem with the Oxygen A/F (Air-Fuel) Sensor Reference Ground Circuit for Bank 1 Sensor 1. Common causes include Faulty Oxygen A/F Sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor circuit. 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
P2252 2010 Toyota Camry indicates Oxygen A/F Sensor Reference Ground Circuit Low Bank 1 Sensor 1.
Common causes
Common causes include Faulty Oxygen A/F Sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor circuit.
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 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P2252 2010 Toyota Camry Description

The diagnostic trouble code (DTC) P2252 in a 2010 Toyota Camry indicates a problem with the Oxygen A/F (Air-Fuel) Sensor Reference Ground Circuit for Bank 1 Sensor 1. This sensor is responsible for measuring the oxygen content in the exhaust gases and sending this data to the engine control module (ECM) for proper air-fuel ratio adjustments. The reference ground circuit being low means that there is a lack of proper voltage being supplied to the sensor, which can lead to inaccurate readings and affect the engine's performance.

OBDII Code P2252 2010 Toyota Camry - Oxygen A/F Sensor Reference Ground Circuit Low Bank 1 Sensor 1
P2252 2010 Toyota Camry Code - Oxygen A/F Sensor Reference Ground Circuit Low Bank 1 Sensor 1

Common Causes of P2252 2010 Toyota Camry

  1. Faulty Oxygen A/F Sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Corrosion or poor connections in the sensor circuit
  4. ECM malfunction
  5. Exhaust system leaks

Symptoms of P2252 2010 Toyota Camry

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine misfires
  4. Check Engine Light illuminated
  5. Poor acceleration or response

How to Fix P2252 2010 Toyota Camry

  1. Begin by diagnosing the issue with a scan tool to confirm the P2252 code and identify the specific sensor causing the problem.
  2. Inspect the wiring and connectors for any damage or corrosion. Repair or replace as necessary.
  3. Test the Oxygen A/F Sensor for proper operation. Replace if faulty.
  4. Clear the DTC and reset the ECM to see if the code returns.
  5. Test drive the vehicle to ensure the issue has been resolved and monitor for any further symptoms.

Cost to Fix P2252 2010 Toyota Camry

The cost of repairing a P2252 code in a 2010 Toyota Camry can vary depending on the specific cause of the issue. On average, the cost of replacing an Oxygen A/F Sensor can range from $100 to $300, while fixing wiring or connector issues may cost between $50 to $150. Labor costs can add another $80 to $150 per hour, with the total repair bill potentially amounting to $200 to $500 or more. Keep in mind that prices can fluctuate based on location, parts availability, and the shop's hourly rates. It's advisable to consult with a trusted mechanic or dealership to get a more accurate cost estimate for your specific situation.

Need more information about the P2252 2010 Toyota Camry code?

Need more information on how to fix the P2252 2010 Toyota Camry code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2252 2010 Toyota Camry code diagnosed by a professional: Find a repair shop in your area

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 P2252 2010 Toyota Camry Code

1. What does the OBDII code P2252 mean on a 2010 Toyota Camry?

P2252 indicates a problem with the Oxygen Air/Fuel Sensor Reference Ground Circuit being too low for Bank 1 Sensor 1. This means the sensor may not be functioning properly due to an electrical or grounding issue.

2. What are the symptoms of code P2252 in a 2010 Toyota Camry?

Common symptoms include poor fuel economy, rough idling, reduced engine performance, hesitation during acceleration, and an illuminated check engine light.

3. What causes the P2252 code to appear?

Potential causes include a faulty air/fuel ratio sensor, damaged wiring or connectors, a poor ground connection, or a malfunctioning engine control module (ECM).

4. Is it safe to drive with a P2252 code on my 2010 Toyota Camry?

While the car may still run, driving with this code can lead to reduced fuel efficiency and potential long-term damage to the catalytic converter. It’s best to address the issue promptly.

5. How do I diagnose code P2252 on a 2010 Toyota Camry?

Start by visually inspecting the wiring and connectors for the Bank 1 Sensor 1 air/fuel sensor. Use a multimeter to check for proper voltage and grounding. If the wiring is fine, the sensor or ECM may need further testing.

6. Can a dirty air filter cause the P2252 code?

No, a dirty air filter is unlikely to cause this specific code. P2252 is related to the reference ground circuit of the air/fuel sensor, not airflow issues.

7. How do you fix a P2252 code on a 2010 Toyota Camry?

Repairs may include replacing the air/fuel ratio sensor, repairing damaged wiring or connectors, cleaning or re-securing ground connections, or, in rare cases, replacing the ECM.

8. How much does it cost to fix code P2252 on a 2010 Toyota Camry?

Repair costs can vary, but replacing the air/fuel ratio sensor typically ranges from $150 to $400, including parts and labor. Wiring repairs may cost less, depending on the extent of the damage.

9. Can a bad air/fuel sensor cause other issues in the car?

Yes, a faulty air/fuel sensor can lead to improper fuel mixture, resulting in poor engine performance, increased emissions, and potential damage to the catalytic converter.

10. Do I need to reprogram the ECM after fixing code P2252?

Typically, reprogramming the ECM isn’t necessary after fixing this code. However, clearing the code with an OBDII scanner and performing a test drive to ensure the repair was successful is recommended.

Discuss the causes and fixes for P2252 2010 Toyota Camry OBDII Code

Submit a New Comment

Code P2252 2010 Toyota Camry comments

No comments found for this page.