AutoCodesLincoln – P2255 Lincoln

P2255 Lincoln Code - O2 Sensor Negative Current Control Circuit Low Bank 2 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 2, Front Oxygen Sensor Bank 2 harness is open or shorted, Front Oxygen Sensor Bank 2 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
P2255 Lincoln indicates O2 Sensor Negative Current Control Circuit Low Bank 2 Sensor 1.
Common causes
Common causes include Faulty Front Oxygen Sensor Bank 2, Front Oxygen Sensor Bank 2 harness is open or shorted, Front Oxygen Sensor Bank 2 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 1,086
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2255 Lincoln 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 P2255 Lincoln - O2 Sensor Negative Current Control Circuit Low Bank 2 Sensor 1 - AutoCodes.com
P2255 Lincoln Code - O2 Sensor Negative Current Control Circuit Low Bank 2 Sensor 1

What are the Possible Causes of the DTC P2255 Lincoln?

  • Faulty Front Oxygen Sensor Bank 2
  • Front Oxygen Sensor Bank 2 harness is open or shorted
  • Front Oxygen Sensor Bank 2 circuit poor electrical connection

How to Fix the DTC P2255 Lincoln?

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 P2255 Lincoln 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 P2255 Lincoln code?

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Need Help with the Code?

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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 P2255 Lincoln Code

What does the OBDII code P2255 mean on a Lincoln?

P2255 indicates a problem with the O2 Sensor Negative Current Control Circuit on Bank 2 Sensor 1, meaning the sensor is detecting a low current signal.

What are the common symptoms of code P2255 in a Lincoln?

Symptoms may include decreased fuel efficiency, rough engine performance, illuminated Check Engine Light, and possible difficulty passing emissions tests.

What causes the P2255 code on a Lincoln?

Common causes include a faulty Bank 2 Sensor 1 oxygen sensor, damaged wiring or connectors in the circuit, or issues with the vehicle's ECM.

Can a bad oxygen sensor cause the P2255 code?

Yes, a malfunctioning oxygen sensor is one of the primary causes of this code.

How can I diagnose the P2255 code on my Lincoln?

Start by inspecting the wiring and connectors for damage, then test the Bank 2 Sensor 1 oxygen sensor for proper operation. A diagnostic scan tool can help confirm the issue.

What repairs can fix the P2255 code?

Repairs may include replacing the Bank 2 Sensor 1 oxygen sensor, repairing or replacing damaged wiring and connectors, or updating/replacing the ECM if necessary.

Can I drive my Lincoln with the P2255 code?

While you may be able to drive the vehicle, prolonged operation with this code can lead to poor fuel efficiency and potential damage to the engine or catalytic converter.

How much does it typically cost to fix the P2255 code on a Lincoln?

Repair costs vary, but replacing an oxygen sensor typically costs $150–$400, depending on labor rates and sensor pricing.

Is the P2255 code related to emissions problems?

Yes, this code can result in improper air-fuel mixture regulation, leading to higher emissions and potential failure during emissions testing.

How do I prevent the P2255 code from occurring again?

Regular maintenance, including inspecting wiring and connectors and replacing oxygen sensors as needed, can help prevent this code from reoccurring.

Discuss the causes and fixes for P2255 Lincoln OBDII Code

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