AutoCodesDodge – P2631 Dodge

P2631 Dodge Code - Oxygen Sensor Positive Current Trim Circuit High Bank 2 Sensor 1

Quick Answer

A resistor is installed in the Universal Heated Oxygen Sensor (HO2S) connector for part to part variance. Common causes include Faulty Heated Oxygen Sensor (HO2S), Heated Oxygen Sensor (HO2S) harness is open or shorted, Heated Oxygen Sensor (HO2S) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2631 Dodge indicates Oxygen Sensor Positive Current Trim Circuit High Bank 2 Sensor 1.
Common causes
Common causes include Faulty Heated Oxygen Sensor (HO2S), Heated Oxygen Sensor (HO2S) harness is open or shorted, Heated Oxygen Sensor (HO2S) circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 2,837
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 22, 2019
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Code P2631 Dodge Description

A resistor is installed in the Universal Heated Oxygen Sensor (HO2S) connector for part to part variance. The Powertrain Control Module (PCM) determines the value of this resistor by taking multiple measurements of the resistor during each ignition ON event. The PCM uses this value in order to compensate for the variance in the pumping current signal. The test fails if the PCM determines the resistance value is too high.
OBDII Code P2631 Dodge - Oxygen Sensor Positive Current Trim Circuit High Bank 2 Sensor 1 - AutoCodes.com
P2631 Dodge Code - Oxygen Sensor Positive Current Trim Circuit High Bank 2 Sensor 1

What are the Possible Causes of the DTC P2631 Dodge?

  • Faulty Heated Oxygen Sensor (HO2S)
  • Heated Oxygen Sensor (HO2S) harness is open or shorted
  • Heated Oxygen Sensor (HO2S) circuit poor electrical connection

How to Fix the DTC P2631 Dodge?

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 P2631 Dodge 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 P2631 Dodge Code

What does OBDII code P2631 mean for a Dodge vehicle?

Code P2631 indicates an issue with the Oxygen Sensor Positive Current Trim Circuit High for Bank 2 Sensor 1. This means the sensor is detecting an abnormally high current in the circuit.

What are the common symptoms of code P2631 on a Dodge?

Symptoms may include the Check Engine Light turning on, poor fuel economy, rough idling, reduced engine performance, and possible hesitation during acceleration.

What causes code P2631 to appear?

Common causes include a faulty Bank 2 Sensor 1 oxygen sensor, damaged wiring or connectors in the oxygen sensor circuit, a malfunctioning powertrain control module (PCM), or exhaust system leaks.

How can I diagnose code P2631 on a Dodge?

Check the wiring and connectors for damage or corrosion, inspect the oxygen sensor for signs of failure, and use a scan tool to monitor live data from the oxygen sensor to confirm abnormal readings.

Can I drive my Dodge with code P2631 present?

While the vehicle may remain operable, driving with code P2631 can lead to reduced fuel efficiency and performance issues. Prolonged driving without addressing the problem could cause further damage.

How do I fix code P2631 on a Dodge?

Repairs typically involve replacing the faulty Bank 2 Sensor 1 oxygen sensor, repairing damaged wiring or connectors, addressing exhaust leaks, or updating/replacing the PCM if necessary.

What tools are needed to resolve code P2631?

You’ll need an OBDII scan tool, a multimeter for testing wiring, basic hand tools for sensor replacement, and possibly a wiring diagram for troubleshooting circuit issues.

Can an exhaust leak cause code P2631?

Yes, an exhaust leak near Bank 2 Sensor 1 can disrupt oxygen sensor readings, leading to the P2631 code.

How can I prevent code P2631 in the future?

Regular maintenance, including inspecting oxygen sensors and wiring, checking for exhaust leaks, and ensuring the PCM is functioning correctly, can help prevent this issue.

Does code P2631 require immediate attention?

It is recommended to address this code promptly to avoid worsening engine performance and potential damage to other components.

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