AutoCodes – GMC – P2210 2017 GMC Sierra

P2210 2017 GMC Sierra 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 GMC Sierra 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.

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Code Popularity 165

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
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Code P2210 2017 GMC Sierra 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 GMC Sierra - NOx Sensor 1 Heater Feedback Circuit Low Voltage - AutoCodes.com — P2210 2017 GMC Sierra Code - NOx Sensor 1 Heater Feedback Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2210 2017 GMC Sierra?

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 GMC Sierra?

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 GMC Sierra 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 GMC Sierra code?

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

Need Help with the Code?

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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 P2210 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P2210 in a 2017 GMC Sierra related to the NOx Sensor 1 Heater Feedback Circuit Low Voltage?

- Common symptoms may include poor engine performance, decreased fuel efficiency, and the illumination of the Check Engine Light.

2. What are the possible causes of OBDII code P2210 in a 2017 GMC Sierra?

- The code P2210 can be triggered by issues such as a faulty NOx sensor, damaged wiring or connectors, a malfunctioning heater circuit, or a problem with the vehicle's engine control module.

3. How can I diagnose the NOx Sensor 1 Heater Feedback Circuit Low Voltage issue in my 2017 GMC Sierra?

- Diagnosing the problem involves checking the sensor connections, inspecting the wiring for any signs of damage, and testing the heater circuit's resistance to determine if it is functioning properly.

4. Can I continue driving my 2017 GMC Sierra with the P2210 code present?

- It is not recommended to drive the vehicle with the P2210 code active, as it can lead to further damage to the engine and emissions system. It is best to address the issue promptly.

5. How can I repair the NOx Sensor 1 Heater Feedback Circuit Low Voltage problem in my 2017 GMC Sierra?

- Repairing the issue may involve replacing the NOx sensor, repairing or replacing damaged wiring, ensuring proper connections, and resetting the fault code with a diagnostic tool.

6. Are there any DIY tips for troubleshooting the P2210 code in a 2017 GMC Sierra?

- While basic checks like inspecting connections and wiring can be done by DIY enthusiasts, diagnosing and repairing complex issues related to the NOx sensor and heater circuit may require professional expertise.

7. How much does it typically cost to repair the NOx Sensor 1 Heater Feedback Circuit Low Voltage issue in a 2017 GMC Sierra?

- The cost of repair can vary depending on the specific cause of the problem, parts needed, and labor rates. It is advisable to consult a mechanic for an accurate estimate.

8. Will resetting the Check Engine Light resolve the P2210 code issue in my 2017 GMC Sierra?

- Simply resetting the Check Engine Light may temporarily clear the code, but it will not fix the underlying problem causing the NOx Sensor 1 Heater Feedback Circuit Low Voltage issue.

9. Can extreme weather conditions affect the NOx Sensor 1 Heater Feedback Circuit in a 2017 GMC Sierra?

- Extreme temperatures or environmental conditions can potentially impact the performance of the NOx sensor and its heater circuit, leading to issues like low voltage feedback.

10. Is the NOx Sensor 1 Heater Feedback Circuit Low Voltage problem a common issue in 2017 GMC Sierra vehicles?

- While not extremely common, issues related to the NOx sensor and heater circuit can occur in GMC Sierra vehicles, especially as they age or if maintenance is neglected.