AutoCodes – Honda – P2252 2010 Honda Accord

P2252 2010 Honda Accord Code - Air/Fuel Ratio Sensor 1 Bank 1 Circuit Low Voltage

Quick Answer

The Air/Fuel ratio (A/F) sensor (sensor 1) is installed in the exhaust system and detects oxygen content in the exhaust gas. Common causes include Faulty Air/Fuel Ratio Sensor 1 Bank 1, Air/Fuel Ratio Sensor 1 Bank 1 harness is open or shorted, Air/Fuel Ratio Sensor 1 Bank 1 electrical circuit poor 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: P2252 2010 Honda Accord indicates Air/Fuel Ratio Sensor 1 Bank 1 Circuit Low Voltage.
Common causes: Common causes include Faulty Air/Fuel Ratio Sensor 1 Bank 1, Air/Fuel Ratio Sensor 1 Bank 1 harness is open or shorted, Air/Fuel Ratio Sensor 1 Bank 1 electrical circuit poor 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 2,699

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 P2252 2010 Honda Accord Description

The Air/Fuel ratio (A/F) sensor (sensor 1) is installed in the exhaust system and detects oxygen content in the exhaust gas. The A/F sensor transmits output voltage to the Powertrain Control Module (PCM). A heater for the sensor element is embedded in the A/F sensor (sensor 1). It heats the sensor to stabilize and speed the detection of oxygen content. The increase in current through the heater levels off as the voltage applied to the electrode reaches a certain range because the amount of oxygen that goes through the diffusion layer is limited. The current is proportional to oxygen content in the exhaust gas, so the air/fuel ratio is detected by the measurement of the current. The PCM compares a set target air/fuel ratio with the detected air/fuel ratio and controls the fuel injection duration. If the A/F sensor (sensor 1) voltage is low, the air/fuel ratio is lean, and the PCM uses A/F feedback control to issue a rich command. If the A/F sensor (sensor 1) voltage is high, the air/fuel ratio is rich, and the PCM uses A/F feedback control to issue a lean command. If the element is not activated or the PCM terminal voltage is a set value or less for a set time when power is drawn to the A/F sensor (sensor 1) heater, a malfunction is detected and a DTC is stored.

OBDII Code P2252 2010 Honda Accord - Air/Fuel Ratio Sensor 1 Bank 1 Circuit Low Voltage - AutoCodes.com — P2252 2010 Honda Accord Code - Air/Fuel Ratio Sensor 1 Bank 1 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2252 2010 Honda Accord?

Faulty Air/Fuel Ratio Sensor 1 Bank 1
Air/Fuel Ratio Sensor 1 Bank 1 harness is open or shorted
Air/Fuel Ratio Sensor 1 Bank 1 electrical circuit poor connection
Vacuum leak
Low fuel pressure

How to Fix the DTC P2252 2010 Honda Accord?

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 P2252 2010 Honda Accord 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.

Need more information about the P2252 2010 Honda Accord code?

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

Need Help with the Code?

Get the P2252 2010 Honda Accord 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 Honda Accord Code

1. What are the common symptoms of OBDII code P2252 in a 2010 Honda Accord?

The common symptoms of OBDII code P2252 in a 2010 Honda Accord include poor fuel economy, rough idling, and a noticeable decrease in engine performance.

2. What does the OBDII code P2252 on a 2010 Honda Accord indicate?

OBDII code P2252 on a 2010 Honda Accord indicates an issue with the Air/Fuel Ratio Sensor 1 Bank 1 circuit, specifically low voltage being detected.

3. What are the possible causes of OBDII code P2252 in a 2010 Honda Accord?

Possible causes of OBDII code P2252 in a 2010 Honda Accord include a faulty Air/Fuel Ratio Sensor, damaged wiring or connectors in the sensor circuit, or an issue with the engine control module (ECM).

4. How can I diagnose the OBDII code P2252 in my 2010 Honda Accord?

To diagnose OBDII code P2252 in a 2010 Honda Accord, you can use an OBDII scanner to retrieve the code and then inspect the Air/Fuel Ratio Sensor 1 Bank 1 circuit for any visible damage or issues.

5. Is it safe to continue driving my 2010 Honda Accord with OBDII code P2252?

It is not recommended to continue driving your 2010 Honda Accord with OBDII code P2252, as it can lead to further damage to the engine and potentially affect the vehicle's performance.

6. Can I repair OBDII code P2252 in my 2010 Honda Accord myself?

While some basic checks and repairs like inspecting wiring connections can be done by a DIY enthusiast, diagnosing and repairing OBDII code P2252 may require professional help to ensure the correct fix.

7. How much does it typically cost to fix OBDII code P2252 in a 2010 Honda Accord?

The cost of fixing OBDII code P2252 in a 2010 Honda Accord can vary depending on the root cause of the issue, but it can range from a few hundred to over a thousand dollars for parts and labor.

8. Can a bad Air/Fuel Ratio Sensor cause OBDII code P2252 in a 2010 Honda Accord?

Yes, a faulty Air/Fuel Ratio Sensor is a common cause of OBDII code P2252 in a 2010 Honda Accord, as it can lead to low voltage readings in the sensor circuit.

9. Will resetting the OBDII code P2252 in my 2010 Honda Accord make it go away permanently?

Resetting the OBDII code P2252 in a 2010 Honda Accord may temporarily clear the code, but if the underlying issue causing the code is not fixed, it is likely to reappear after some driving cycles.

10. How important is it to address OBDII code P2252 promptly in a 2010 Honda Accord?

It is crucial to address OBDII code P2252 promptly in a 2010 Honda Accord to prevent potential damage to the engine, ensure optimal fuel efficiency, and maintain overall vehicle performance.