AutoCodes – Generic – P2252

P2252 Code - O2 Sensor Negative Current Control 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: P2252 indicates O2 Sensor Negative Current Control 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 16,843

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 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 P2252 - O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1 - AutoCodes.com — P2252 Code - O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P2252?

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 P2252?

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 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 code?

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

Need Help with the Code?

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

Information for Specific Makes

P2252 Acura — Air/Fuel Ratio Sensor 1 Bank 1 Circuit Low Voltage
P2252 Dodge — O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
P2252 Ford — O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
P2252 Honda — Air/Fuel Ratio Sensor 1 Bank 1 Circuit Low Voltage
P2252 Hyundai — O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
P2252 KIA — O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
P2252 Lexus — A/F Sensor Pumping Reference Ground Low Bank 1 Sensor 1
P2252 Lincoln — O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
P2252 Mercury — O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1
P2252 Scion — A/F Sensor Bank 1 Short Circuit
P2252 Toyota — A/F Sensor Bank 1 Short Circuit

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 Code

1. What are the common symptoms of OBDII code P2252?

The common symptoms of OBDII code P2252 include poor fuel efficiency, rough idling, stalling, and reduced engine performance.

2. What does the O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 1 code P2252 mean?

OBDII code P2252 indicates that there is a low voltage condition in the negative current control circuit of the Bank 1 Sensor 1 oxygen (O2) sensor.

3. What are the possible causes of OBDII code P2252?

Possible causes of OBDII code P2252 include a faulty oxygen sensor, damaged wiring or connectors in the O2 sensor circuit, or an issue with the engine control module (ECM).

4. How can I diagnose OBDII code P2252?

Diagnosing OBDII code P2252 involves checking the wiring and connectors related to Bank 1 Sensor 1, testing the oxygen sensor's voltage output, and inspecting the ECM for any faults.

5. Can I drive with OBDII code P2252?

It is not recommended to drive with OBDII code P2252, as it can lead to poor engine performance and potential damage to other components. It is best to address the issue promptly.

6. How can I repair OBDII code P2252?

Repairing OBDII code P2252 may involve replacing the Bank 1 Sensor 1 oxygen sensor, repairing any damaged wiring or connectors, or resetting the ECM after fixing the underlying issue.

7. Is it possible to reset OBDII code P2252 without fixing the problem?

While you can clear the error code using an OBDII scanner, it is crucial to address the underlying issue causing OBDII code P2252 to prevent further complications.

8. Can a dirty or clogged air filter cause OBDII code P2252?

A dirty or clogged air filter is unlikely to directly cause OBDII code P2252. However, it is essential to ensure all engine components are in good condition to prevent potential issues.

9. How much does it typically cost to repair OBDII code P2252?

The cost to repair OBDII code P2252 can vary depending on the root cause of the issue, the cost of parts, and labor rates. It is advisable to consult a mechanic for an accurate estimate.

10. Will OBDII code P2252 cause my vehicle to fail an emissions test?

Yes, OBDII code P2252 can cause your vehicle to fail an emissions test due to the impact on the oxygen sensor's functionality and emissions control system. It should be addressed before undergoing an emissions test.