AutoCodes – Chevrolet – P2207 2016 Chevrolet Silverado

P2207 2016 Chevrolet Silverado Code - NOx Sensor 1 Heater Control Circuit High 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: P2207 2016 Chevrolet Silverado indicates NOx Sensor 1 Heater Control Circuit High 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 454

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 P2207 2016 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 P2207 2016 Chevrolet Silverado - NOx Sensor 1 Heater Control Circuit High Voltage - AutoCodes.com — P2207 2016 Chevrolet Silverado Code - NOx Sensor 1 Heater Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2207 2016 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 P2207 2016 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 P2207 2016 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 P2207 2016 Chevrolet Silverado code?

Need more information on how to fix the P2207 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2207 2016 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 P2207 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P2207 on a 2016 Chevrolet Silverado?

- Common symptoms of P2207 may include the Check Engine light illuminating on the dashboard, reduced engine performance, and potential issues with emissions control.

2. What does the OBDII code P2207 indicate for a 2016 Chevrolet Silverado?

- P2207 indicates a high voltage condition in the NOx Sensor 1 Heater Control Circuit of the 2016 Chevrolet Silverado, specifically related to the heating element of the NOx sensor.

3. What are the possible causes of OBDII code P2207 on a 2016 Chevrolet Silverado?

- The potential causes of P2207 include a faulty NOx sensor, damaged wiring or connectors in the heater control circuit, or issues with the power supply to the sensor.

4. How serious is OBDII code P2207 on a 2016 Chevrolet Silverado?

- While the vehicle may still be operable with P2207, it is essential to address the issue promptly to prevent potential damage to the emissions control system and ensure optimal engine performance.

5. Can I continue driving my 2016 Chevrolet Silverado with OBDII code P2207?

- It is generally safe to drive the vehicle with P2207, but it is recommended to have the issue diagnosed and repaired as soon as possible to avoid further complications.

6. How can I diagnose OBDII code P2207 on a 2016 Chevrolet Silverado?

- Proper diagnosis of P2207 typically involves using an OBDII scanner to retrieve the code, inspecting the NOx sensor and related components, and testing the circuit for proper voltage levels.

7. Is it possible to repair OBDII code P2207 on a 2016 Chevrolet Silverado myself?

- Repairing P2207 may require advanced automotive knowledge and specialized tools. It is recommended to consult a professional mechanic or dealership for accurate diagnosis and repair.

8. What are the repair options for OBDII code P2207 on a 2016 Chevrolet Silverado?

- Repair options for P2207 may include replacing the NOx sensor, repairing damaged wiring or connectors, or addressing any issues with the power supply to the sensor.

9. How much does it cost to fix OBDII code P2207 on a 2016 Chevrolet Silverado?

- The cost of repairing P2207 can vary depending on the extent of the issue, the parts needed for replacement, and the labor rates of the repair shop. It is advisable to obtain quotes from multiple sources.

10. Can resetting the OBDII system clear OBDII code P2207 on a 2016 Chevrolet Silverado?

- While resetting the OBDII system may temporarily clear the code, it will likely reappear if the underlying issue causing P2207 is not addressed. It is best to diagnose and repair the problem to prevent recurrence.