AutoCodes – Dodge – P2225 Dodge

P2225 Dodge Code - NOx Sensor Heater Sense Circuit Intermittent Bank 2

Quick Answer

The Nitrogen Oxide (NOx) sensor measures the amount of nitric oxide and nitrogen oxide in the exhaust system. Common causes include Faulty Nitrogen Oxide (NOx) Sensor, Nitrogen Oxide (NOx) Sensor harness is open or shorted, Nitrogen Oxide (NOx) Sensor 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
P2225 Dodge indicates NOx Sensor Heater Sense Circuit Intermittent Bank 2.
Common causes
Common causes include Faulty Nitrogen Oxide (NOx) Sensor, Nitrogen Oxide (NOx) Sensor harness is open or shorted, Nitrogen Oxide (NOx) Sensor 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 3,514
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 P2225 Dodge Description

The Nitrogen Oxide (NOx) sensor measures the amount of nitric oxide and nitrogen oxide in the exhaust system. When the NOx sensor indicates that the storage capacity has been reached, the regeneration phase is initiated by the fueling management system. The Powertrain Control Module (PCM) monitors the NOx sensor and sets the code when the NOx sensor circuit voltage reading is not within the normal operating threshold for a specific engine bank.
OBDII Code P2225 Dodge - NOx Sensor Heater Sense Circuit Intermittent Bank 2 - AutoCodes.com
P2225 Dodge Code - NOx Sensor Heater Sense Circuit Intermittent Bank 2

What are the Possible Causes of the DTC P2225 Dodge?

  • Faulty Nitrogen Oxide (NOx) Sensor
  • Nitrogen Oxide (NOx) Sensor harness is open or shorted
  • Nitrogen Oxide (NOx) Sensor circuit poor electrical connection

How to Fix the DTC P2225 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 P2225 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 P2225 Dodge Code

What does the OBDII code P2225 mean for a Dodge vehicle?

P2225 indicates an issue with the NOx (Nitrogen Oxide) sensor heater sense circuit on Bank 2, specifically an intermittent fault.

What are the common symptoms of the P2225 code in a Dodge?

Symptoms may include the check engine light turning on, reduced fuel efficiency, poor engine performance, or the vehicle entering limp mode.

What causes the P2225 code to appear on a Dodge?

Common causes include a faulty NOx sensor, damaged sensor wiring, a loose electrical connection, or a malfunction in the engine control module (ECM).

Can a P2225 code affect fuel economy?

Yes, a malfunctioning NOx sensor can cause incorrect air-fuel mixture adjustments, leading to decreased fuel efficiency.

How do you diagnose the P2225 code on a Dodge?

Diagnosis typically involves scanning the vehicle for codes, visually inspecting the NOx sensor and its wiring, testing the sensor's heater circuit, and checking for proper voltage and ground connections.

Is it safe to drive a Dodge with a P2225 code?

While the vehicle may still be drivable, prolonged operation with this code can lead to increased emissions and potential damage to the catalytic converter.

How can the P2225 code be fixed?

Repairs may include replacing the faulty NOx sensor, repairing or replacing damaged wiring or connectors, and updating or reprogramming the ECM if necessary.

What does "Bank 2" refer to in the P2225 code?

Bank 2 refers to the side of the engine opposite Bank 1, typically the side that does not contain cylinder 1 in V-configuration engines.

Can a faulty NOx sensor cause other issues in the vehicle?

Yes, a faulty NOx sensor can lead to increased emissions, poor engine performance, and potential damage to the exhaust or emissions system.

How much does it typically cost to fix a P2225 code on a Dodge?

Repair costs can vary but typically range from $200 to $500, depending on whether the NOx sensor, wiring, or other components need replacement.

Discuss the causes and fixes for P2225 Dodge OBDII Code

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