Engine-CodesChevrolet – P2047 2016 Chevrolet Silverado

P2047 2016 Chevrolet Silverado Code - Reductant Injector Control Circuit

Quick Answer

The P2047 diagnostic trouble code (DTC) in a 2016 Chevrolet Silverado relates to the reductant injector control circuit. Common causes include Faulty Reductant Injector Control Module: The control module responsible for regulating the reductant injector may be malfunctioning, Wiring Issues: Damaged or corroded wiring in the control circuit can disrupt communication between the control module and the reductant injector, Defective Reductant Injector: The reductant injector itself may be faulty and not injecting the diesel exhaust fluid properly. 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
P2047 2016 Chevrolet Silverado indicates Reductant Injector Control Circuit.
Common causes
Common causes include Faulty Reductant Injector Control Module: The control module responsible for regulating the reductant injector may be malfunctioning, Wiring Issues: Damaged or corroded wiring in the control circuit can disrupt communication between the control module and the reductant injector, Defective Reductant Injector: The reductant injector itself may be faulty and not injecting the diesel exhaust fluid properly.
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.
Table of contents Created and updated by William Orellana on Sep 18, 2024
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Code P2047 2016 Chevrolet Silverado Description

The P2047 diagnostic trouble code (DTC) in a 2016 Chevrolet Silverado relates to the reductant injector control circuit. This code indicates that there is a malfunction in the circuit responsible for controlling the reductant injector, which is a crucial component of the vehicle's selective catalytic reduction (SCR) system. The SCR system is designed to reduce harmful emissions by injecting a urea-based solution (diesel exhaust fluid) into the exhaust stream to convert nitrogen oxides into harmless nitrogen and water vapor.

OBDII Code P2047 2016 Chevrolet Silverado - Reductant Injector Control Circuit
P2047 2016 Chevrolet Silverado Code - Reductant Injector Control Circuit

Common Causes of P2047 2016 Chevrolet Silverado

  1. Faulty Reductant Injector Control Module: The control module responsible for regulating the reductant injector may be malfunctioning.
  2. Wiring Issues: Damaged or corroded wiring in the control circuit can disrupt communication between the control module and the reductant injector.
  3. Defective Reductant Injector: The reductant injector itself may be faulty and not injecting the diesel exhaust fluid properly.
  4. Software Glitch: Sometimes, a software glitch in the engine control module can trigger the P2047 code.
  5. Environmental Factors: Exposure to extreme temperatures or contaminants can also contribute to the malfunction of the reductant injector control circuit.

Symptoms of P2047 2016 Chevrolet Silverado

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Reduced Power: The vehicle may experience a loss of power or acceleration due to the SCR system not functioning properly.
  3. Poor Fuel Efficiency: A malfunctioning reductant injector control circuit can lead to decreased fuel efficiency.
  4. Increased Emissions: The vehicle may produce higher emissions than usual, potentially causing it to fail emissions tests.
  5. Strange Smells: There may be unusual smells coming from the exhaust due to improper conversion of nitrogen oxides.

How to Fix P2047 2016 Chevrolet Silverado

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble code and pinpoint the exact cause of the malfunction.
  2. Inspect Wiring: Check the wiring harness for any damage or corrosion and repair or replace as needed.
  3. Test Reductant Injector: Test the reductant injector to ensure it is functioning correctly and replace if necessary.
  4. Replace Control Module: If the control module is found to be faulty, replace it with a new one.
  5. Clear Codes: After completing the repairs, clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2047 2016 Chevrolet Silverado

The cost of repairing a P2047 code in a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $200 and $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to get a few quotes from different shops to ensure you're getting a fair price. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops often offer more competitive prices.

Tech Notes for P2047 2016 Chevrolet Silverado









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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 P2047 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P2047 in a 2016 Chevrolet Silverado?

- Common symptoms include the check engine light coming on, reduced engine performance, and potential issues with the vehicle's emissions system.

2. What does the OBDII code P2047 in a 2016 Chevrolet Silverado indicate?

- This code specifically relates to the Reductant Injector Control Circuit, which is a component of the vehicle's emissions system.

3. What are some possible causes of OBDII code P2047 in a 2016 Chevrolet Silverado?

- Possible causes include a faulty reductant injector, issues with the injector control circuit, wiring problems, or a malfunctioning powertrain control module (PCM).

4. How can I diagnose the cause of OBDII code P2047 in my 2016 Chevrolet Silverado?

- Diagnosing the issue may involve using a scan tool to retrieve the specific fault code, conducting a visual inspection of wiring and connectors, and testing the reductant injector and related components.

5. Can I continue driving my 2016 Chevrolet Silverado with OBDII code P2047?

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

6. How can I repair OBDII code P2047 in my 2016 Chevrolet Silverado?

- Repair options may include replacing the faulty reductant injector, repairing wiring or connector issues, resetting the fault code, and conducting a thorough inspection of the emissions system.

7. Is it possible to clear the OBDII code P2047 in my 2016 Chevrolet Silverado without fixing the issue?

- Clearing the code without addressing the underlying problem may temporarily turn off the check engine light, but the issue may persist and potentially cause further complications down the line.

8. How much does it cost to repair OBDII code P2047 in a 2016 Chevrolet Silverado?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve parts and labor expenses for replacing components or repairing wiring.

9. Can I prevent OBDII code P2047 from occurring in my 2016 Chevrolet Silverado?

- Regular maintenance, such as checking and replacing worn components in the emissions system, can help prevent issues that may trigger this fault code.

10. Will OBDII code P2047 cause my 2016 Chevrolet Silverado to fail an emissions test?

- Yes, if the issue is not resolved before the emissions test, the presence of this fault code may cause the vehicle to fail the test due to emissions system malfunctions.

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