AutoCodes – Dodge – P2220 Dodge

P2220 Dodge Code - NOx Sensor Heater Control Circuit High 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: P2220 Dodge indicates NOx Sensor Heater Control Circuit High 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 2,680

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 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 P2220 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 P2220 Dodge - NOx Sensor Heater Control Circuit High Bank 2 - AutoCodes.com — P2220 Dodge Code - NOx Sensor Heater Control Circuit High Bank 2

What does this mean?

What are the Possible Causes of the DTC P2220 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 P2220 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 P2220 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 P2220 Dodge Code

What does the OBDII code P2220 mean for a Dodge vehicle?

The P2220 code indicates an issue with the NOx sensor heater control circuit on Bank 2, often signaling a high voltage or malfunction in the heater circuit.

What are the common symptoms of code P2220 in a Dodge?

Symptoms may include the check engine light turning on, reduced fuel efficiency, poor engine performance, and possible difficulty passing emissions tests.

What causes the P2220 code to appear in Dodge vehicles?

Common causes include a faulty NOx sensor, damaged wiring or connectors in the heater circuit, or an issue with the power supply to the sensor.

Can I drive my Dodge with the P2220 code active?

While the vehicle may still be drivable, prolonged operation with this code can lead to increased emissions and potential damage to other components, so repairs should be prioritized.

How do I diagnose the P2220 code in a Dodge?

Diagnosis typically involves scanning the vehicle’s ECU, inspecting the NOx sensor and its wiring, checking for voltage irregularities, and confirming the issue with a multimeter.

What is the function of the NOx sensor heater in Dodge vehicles?

The NOx sensor heater ensures the sensor operates efficiently by maintaining an optimal temperature for accurate readings of nitrogen oxide levels in the exhaust.

How much does it cost to repair the P2220 code in a Dodge?

Repair costs vary but may range from $200 to $600, depending on whether the NOx sensor needs replacement or wiring repairs are required.

Can the P2220 code be caused by a software issue in Dodge vehicles?

While rare, outdated ECU software or calibration issues can sometimes contribute to sensor-related codes, including P2220.

What should I check if I see the P2220 code on my Dodge?

Start by inspecting the NOx sensor, wiring harness, and connectors for damage, corrosion, or loose connections. Check for proper voltage and continuity in the heater circuit.

How can I prevent the P2220 code from recurring in a Dodge?

Regular maintenance, such as inspecting exhaust system components and ensuring proper electrical connections, can help prevent issues with the NOx sensor heater circuit.