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P2210 2014 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 2014 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.

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Code Popularity 235

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

What does this mean?

What are the Possible Causes of the DTC P2210 2014 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 2014 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 2014 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 2014 Chevrolet Silverado code?

Need more information on how to fix the P2210 2014 Chevrolet Silverado 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 2014 Chevrolet Silverado Code

1. What does the OBDII code P2210 mean on a 2014 Chevrolet Silverado?

P2210 indicates a low voltage issue in the NOx Sensor 1 Heater Feedback Circuit, which monitors and helps control nitrogen oxide emissions.

2. What are the symptoms of code P2210 in a 2014 Chevrolet Silverado?

Common symptoms include an illuminated Check Engine Light, reduced fuel efficiency, increased emissions, and possible engine performance issues.

3. What causes the P2210 code to appear on a 2014 Silverado?

Common causes include a faulty NOx sensor, damaged sensor wiring, corrosion in the electrical connectors, or a malfunctioning powertrain control module (PCM).

4. Can I drive my 2014 Chevrolet Silverado with a P2210 code?

While the truck may still be drivable, itâ€™s not recommended. Driving with this code can lead to increased emissions and potential damage to the engine or exhaust system over time.

5. How do I diagnose the P2210 code on a 2014 Silverado?

Start by inspecting the NOx sensor wiring and connections for damage or corrosion, then test the sensor's resistance and voltage output. If necessary, use a scan tool to verify sensor operation.

6. How do I fix the P2210 code on my 2014 Chevrolet Silverado?

Repairs may involve replacing the NOx sensor, repairing damaged wiring, cleaning corroded connectors, or, in rare cases, reprogramming or replacing the PCM.

7. How much does it cost to fix the P2210 code on a 2014 Silverado?

The repair cost can vary. Replacing a NOx sensor typically costs $200-$600, depending on the part and labor rates, while wiring repairs may be less expensive.

8. Can a bad NOx sensor cause other damage if not repaired?

Yes, a faulty NOx sensor can lead to higher emissions, reduced fuel economy, and potential damage to the catalytic converter or other emissions components.

9. Is a special tool required to replace the NOx sensor?

Yes, a specialized NOx sensor socket or wrench is often required to safely remove and install the sensor without damage.

10. Can a software update fix the P2210 code on a 2014 Silverado?

In some cases, a PCM software update from a dealership may resolve the issue, especially if the problem is related to the sensor feedback calibration.