AutoCodes – RAM – P220E RAM

P220E RAM Code - NOx Sensor Heater Control Circuit Range/Performance Bank 1 Sensor 1

Quick Answer

This fault code is stored when a malfunction is detected with the NOx sensor circuit. Common causes include Faulty NOx Sensor, NOx Sensor harness is open or shorted, 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: P220E RAM indicates NOx Sensor Heater Control Circuit Range/Performance Bank 1 Sensor 1.
Common causes: Common causes include Faulty NOx Sensor, NOx Sensor harness is open or shorted, 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 479

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 Dec 23, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P220E RAM Description

This fault code is stored when a malfunction is detected with the NOx sensor circuit. Some lean burn and direct injection vehicles will use a Selective Catalytic Reduction system (SCR), which uses a NOx accumulator to store oxides of Nitrogen and allows them to be reduced at a suitable time. A NOx sensor is used to detect when a regeneration is required and when the regeneration is complete. The NOx sensor will have a module located close to the sensor which communicates with the engine control module. A heater circuit is required to get the NOx sensor up to operating temperature quickly to allow for reliable performance in a timely manner.

OBDII Code P220E RAM - NOx Sensor Heater Control Circuit Range/Performance Bank 1 Sensor 1 - AutoCodes.com — P220E RAM Code - NOx Sensor Heater Control Circuit Range/Performance Bank 1 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P220E RAM?

Faulty NOx Sensor
NOx Sensor harness is open or shorted
NOx Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P220E RAM?

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 P220E RAM 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 P220E RAM Code

1. What does the OBDII code P220E mean on a RAM vehicle?

P220E indicates an issue with the NOx sensor heater control circuit for Bank 1 Sensor 1, meaning the sensor's heater circuit is not performing within the expected range.

2. What are the common symptoms of the P220E code on a RAM?

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

3. What causes the P220E code to appear on a RAM?

Common causes include a faulty NOx sensor, a damaged NOx sensor heater, wiring or connector issues in the heater circuit, or a malfunctioning powertrain control module (PCM).

4. Can I drive my RAM with the P220E code active?

Driving with the P220E code may be possible, but it can lead to reduced engine performance, increased emissions, and potential damage to the engine or exhaust system over time.

5. How do I diagnose the P220E code on my RAM?

Diagnosis involves checking the NOx sensor and its heater circuit for damage, testing the wiring and connectors for continuity, and using a scan tool to monitor sensor data for irregularities.

6. How do I fix the P220E code on a RAM?

Possible fixes include replacing the faulty NOx sensor, repairing or replacing damaged wiring or connectors, or updating/reprogramming the PCM if necessary.

7. How much does it cost to fix the P220E code on a RAM?

The cost can vary, with NOx sensor replacement typically ranging from $200 to $600, plus labor charges. Wiring repairs or PCM replacement may add to the cost.

8. What is the function of the NOx sensor heater in a RAM vehicle?

The NOx sensor heater helps the sensor reach its operating temperature quickly, ensuring accurate monitoring of nitrogen oxide emissions.

9. Can a faulty NOx sensor heater cause other issues in my RAM?

Yes, a faulty heater can lead to improper NOx sensor operation, increased emissions, reduced fuel economy, and potential harm to the catalytic converter.

10. Is the P220E code covered under warranty for my RAM?

It depends on your vehicle's warranty coverage. Emissions-related components like the NOx sensor may be covered under the federal emissions warranty. Check with your dealer for details.