AutoCodes – Chevrolet – P2210 2017 Chevrolet Silverado

P2210 2017 Chevrolet Silverado Code - NOx Sensor 1 Heater Feedback Circuit Low Voltage

Quick Answer

The Nitrogen Oxides (NOx) sensors are part of the selective catalytic reduction system, a device used to reduce NOx emission on diesel engines. Common causes include Faulty Nitrogen Oxides (NOx) Sensor, Nitrogen Oxides Sensor harness is open or shorted, Nitrogen Oxides 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: P2210 2017 Chevrolet Silverado indicates NOx Sensor 1 Heater Feedback Circuit Low Voltage.
Common causes: Common causes include Faulty Nitrogen Oxides (NOx) Sensor, Nitrogen Oxides Sensor harness is open or shorted, Nitrogen Oxides 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 227

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 Mar 24, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2210 2017 Chevrolet Silverado Description

The Nitrogen Oxides (NOx) sensors are part of the selective catalytic reduction system, a device used to reduce NOx emission on diesel engines. There are two NOx sensors, one placed upstream of selective catalytic reduction, to measure inlet NOx concentration, and one placed downstream. They are connected with the control module via CAN and all the information is exchanged through it. Since it is a smart sensor, all the electrical monitoring is performed inside the sensor and only the results are sent to the Engine Control Module (ECM). Each NOx sensor contains a sensing cell, a pumping cell, and a heater. A sample of exhaust gas passes through a diffusion gap between the sensing cell and the pumping cell. The NOx sensor maintains a constant reference voltage across the sensing cell. An electronic circuit within the sensor controls the pump current through the pumping cell in order to maintain a constant voltage in the sensing cell. The amount of current required to maintain the reference voltage in the sensing cell is proportional to the concentration of NOx in the exhaust. The ECM varies the amount of diesel exhaust fluid (reductant) added by varying the reductant injector duty cycle in response to changes in engine exhaust NOx levels. The smart NOx sensors consist of two components, the NOx module and the NOx sensor element that are serviced as a unit. A circuit or performance condition with a NOx sensor is detected by the NOx sensor module. The smart NOx sensor module communicates the condition to the ECM over the serial data line. The ECM sets a DTC when a serial data message is received from the NOx sensor module. The Diagnostic Trouble Code (DTC) will be set if the ECM software detects a fault in the NOx sensor circuitry or a performance fault in the NOx sensor for greater than 2 s.

OBDII Code P2210 2017 Chevrolet Silverado - NOx Sensor 1 Heater Feedback Circuit Low Voltage - AutoCodes.com — P2210 2017 Chevrolet Silverado Code - NOx Sensor 1 Heater Feedback Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2210 2017 Chevrolet Silverado?

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

How to Fix the DTC P2210 2017 Chevrolet Silverado?

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 P2210 2017 Chevrolet Silverado 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 P2210 2017 Chevrolet Silverado code?

Need more information on how to fix the P2210 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2210 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P2210 2017 Chevrolet Silverado Code

1. What does the OBDII code P2210 mean on a 2017 Chevrolet Silverado?

The P2210 code indicates a low voltage issue in the NOx Sensor 1 Heater Feedback Circuit, which monitors the exhaust system's nitrogen oxide (NOx) emissions.

2. What are the symptoms of a P2210 code on a Chevy Silverado?

Common symptoms include the check engine light being illuminated, reduced fuel efficiency, poor engine performance, and, in some cases, the vehicle entering limp mode.

3. What causes the P2210 code to appear?

Potential causes include a faulty NOx sensor, damaged wiring or connectors in the sensor circuit, a blown fuse, or a malfunctioning engine control module (ECM).

4. Can I drive my 2017 Chevrolet Silverado with a P2210 code?

While the truck may still be drivable, it is not recommended due to potential reductions in performance, increased emissions, and the risk of further damage to the exhaust or engine system.

5. How is the P2210 code diagnosed?

A technician will use a scan tool to confirm the code, inspect the NOx sensor and its wiring for damage, test the sensor's heater circuit, and check for proper voltage levels at the ECM.

6. How do I fix a P2210 code on my Silverado?

Repairs may include replacing the faulty NOx sensor, repairing damaged wiring or connectors, replacing a blown fuse, or reprogramming or replacing the ECM if necessary.

7. What is the NOx sensor and why is it important?

The NOx sensor measures nitrogen oxide levels in the exhaust to ensure the vehicle complies with emissions standards. It also helps optimize engine performance and fuel efficiency.

8. How much does it cost to repair a P2210 code on a 2017 Silverado?

The repair cost depends on the issue, ranging from $200-$600 for a NOx sensor replacement or wiring repair, and potentially more if the ECM needs replacing.

9. Can a dirty exhaust system cause the P2210 code?

While unlikely, excessive soot buildup or contamination in the exhaust system can affect the NOx sensor's performance and potentially trigger the code.

10. Will clearing the code fix the P2210 issue permanently?

Clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return. The root cause must be diagnosed and repaired.