AutoCodes – GMC – P2210 2014 GMC Sierra

P2210 2014 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 2014 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 176

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 2014 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 2014 GMC Sierra - NOx Sensor 1 Heater Feedback Circuit Low Voltage - AutoCodes.com — P2210 2014 GMC Sierra Code - NOx Sensor 1 Heater Feedback Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2210 2014 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 2014 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 2014 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 2014 GMC Sierra 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 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P2210 on a 2014 GMC Sierra?

The common symptoms of code P2210 "NOx Sensor 1 Heater Feedback Circuit Low Voltage" on a 2014 GMC Sierra may include poor engine performance, decreased fuel efficiency, and the illumination of the check engine light.

2. What causes OBDII code P2210 on a 2014 GMC Sierra?

Code P2210 on a 2014 GMC Sierra is typically caused by a malfunction in the NOx (nitrogen oxide) sensor 1 heater feedback circuit, leading to low voltage being detected by the vehicle's onboard diagnostics system.

3. How serious is OBDII code P2210 on a 2014 GMC Sierra?

While code P2210 may not cause immediate drivability issues, it is important to address the underlying problem to ensure optimal engine performance, emissions compliance, and fuel efficiency in the long run.

4. How can I diagnose OBDII code P2210 on my 2014 GMC Sierra?

Diagnosing code P2210 usually involves using an OBDII scanner to retrieve the specific fault code, inspecting the NOx sensor 1 heater circuit for any damage or loose connections, and testing the sensor's voltage levels.

5. Can I drive my 2014 GMC Sierra with OBDII code P2210?

It is generally safe to drive your 2014 GMC Sierra with code P2210, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent further complications and ensure proper vehicle operation.

6. How can I repair OBDII code P2210 on a 2014 GMC Sierra?

Repairing code P2210 often involves checking and repairing any damaged wiring or connections in the NOx sensor 1 heater feedback circuit, replacing the NOx sensor if necessary, and clearing the fault code with an OBDII scanner.

7. Is it possible to reset OBDII code P2210 on a 2014 GMC Sierra without fixing the issue?

While you can clear the fault code temporarily by resetting the vehicle's computer, the check engine light is likely to reappear if the underlying problem causing code P2210 is not resolved.

8. How much does it cost to fix OBDII code P2210 on a 2014 GMC Sierra?

The cost to fix code P2210 on a 2014 GMC Sierra can vary depending on the root cause of the issue, the need for parts replacement, and labor charges. It's advisable to consult a mechanic for a precise estimate.

9. Can a DIY enthusiast repair OBDII code P2210 on a 2014 GMC Sierra?

While some DIY enthusiasts may be able to address code P2210 by checking and repairing wiring connections, replacing the NOx sensor, or clearing the fault code, it is recommended to consult a professional mechanic for accurate diagnosis and repairs.

10. Will OBDII code P2210 on a 2014 GMC Sierra cause emissions test failure?

Yes, code P2210 on a 2014 GMC Sierra can cause emissions test failure, as it indicates a problem with the NOx sensor 1 heater feedback circuit, which is essential for proper emissions control and compliance.