P116D 2018 Chevrolet Silverado Code - O2 Pump Current Control Circuit (NOx Sensor 1)
Quick Answer
The P116D diagnostic trouble code (DTC) in a 2018 Chevrolet Silverado refers to an issue with the O2 pump current control circuit related to NOx Sensor 1. Common causes include Faulty O2 Pump: A malfunctioning O2 pump can cause issues with the current control circuit, Wiring/Connector Issues: Damaged or corroded wiring or connectors can disrupt the flow of current in the circuit, ECM Malfunction: A problem with the engine control module can prevent proper communication with the NOx sensor. 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
- P116D 2018 Chevrolet Silverado indicates O2 Pump Current Control Circuit (NOx Sensor 1).
- Common causes
- Common causes include Faulty O2 Pump: A malfunctioning O2 pump can cause issues with the current control circuit, Wiring/Connector Issues: Damaged or corroded wiring or connectors can disrupt the flow of current in the circuit, ECM Malfunction: A problem with the engine control module can prevent proper communication with the NOx sensor.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P116D 2018 Chevrolet Silverado Description
The P116D diagnostic trouble code (DTC) in a 2018 Chevrolet Silverado refers to an issue with the O2 pump current control circuit related to NOx Sensor 1. This code indicates that there is a problem with the circuit responsible for controlling the current of the O2 pump, which is crucial for the proper functioning of the NOx sensor. The NOx sensor is responsible for monitoring the levels of nitrogen oxide (NOx) in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion and emission control.
Common Causes of P116D 2018 Chevrolet Silverado
- Faulty O2 Pump: A malfunctioning O2 pump can cause issues with the current control circuit.
- Wiring/Connector Issues: Damaged or corroded wiring or connectors can disrupt the flow of current in the circuit.
- ECM Malfunction: A problem with the engine control module can prevent proper communication with the NOx sensor.
- Sensor Failure: A failed NOx sensor can trigger this code by providing inaccurate data to the ECM.
Symptoms of P116D 2018 Chevrolet Silverado
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
- Reduced Fuel Efficiency: The vehicle may experience decreased fuel efficiency due to incorrect air-fuel mixture adjustments.
- Poor Engine Performance: The engine may run rough, hesitate, or lack power under acceleration.
- Increased Emissions: The vehicle may fail emissions tests or emit higher levels of pollutants due to improper NOx sensor operation.
How to Fix P116D 2018 Chevrolet Silverado
- Diagnose the Issue: Use a diagnostic scanner to retrieve the DTC and perform a thorough inspection of the O2 pump current control circuit.
- Check Wiring and Connectors: Inspect the wiring and connectors for any damage, corrosion, or loose connections. Repair or replace as needed.
- Test O2 Pump: Test the O2 pump to ensure it is functioning correctly. Replace if necessary.
- Check NOx Sensor: Verify the operation of the NOx sensor and replace if it is faulty.
- Clear Codes and Test Drive: Clear the DTC from the ECM, reset the system, and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P116D 2018 Chevrolet Silverado
The typical repair costs for addressing the P116D code in a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. On average, the parts required for this repair, such as an O2 pump or NOx sensor, can range from $200 to $500. Labor costs can add an additional $100 to $300, bringing the total repair cost to approximately $300 to $800. However, it is important to note that these estimates are rough averages, and actual costs may vary based on factors such as location, vehicle make and model, and the rates of the auto repair shop. It is recommended to obtain quotes from local shops for a more accurate cost estimate.
Need more information about the P116D 2018 Chevrolet Silverado code?
Need more information on how to fix the P116D 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P116D 2018 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P116D 2018 Chevrolet Silverado Code
1. What does the OBDII code P116D mean on a 2018 Chevrolet Silverado?
P116D indicates an issue with the O2 Pump Current Control Circuit in NOx Sensor 1, which monitors and controls oxygen levels in the exhaust for emissions compliance.
2. What are the common symptoms of code P116D in a 2018 Chevrolet Silverado?
Symptoms may include the check engine light turning on, reduced fuel efficiency, rough idling, or poor engine performance.
3. What causes the P116D code to appear on my 2018 Chevrolet Silverado?
Common causes include a faulty NOx Sensor 1, damaged wiring or connectors in the O2 pump circuit, or an issue with the engine control module (ECM).
4. Can I still drive my 2018 Silverado with a P116D code?
While the truck may still run, driving with this code can lead to reduced performance, higher emissions, and potential long-term damage to the catalytic converter.
5. How do I diagnose the P116D code in my Silverado?
Diagnosis involves checking the NOx sensor's wiring and connectors for damage, testing the sensor with a multimeter, and verifying the ECM is receiving proper signals.
6. How much does it cost to fix the P116D code on a 2018 Chevrolet Silverado?
Repair costs vary, but replacing the NOx sensor can cost between $300 and $800, depending on parts and labor.
7. Can a faulty NOx sensor cause other problems in my Silverado?
Yes, a faulty NOx sensor can lead to increased emissions, reduced fuel efficiency, and potential damage to the exhaust system.
8. How do I reset the P116D code after repairs?
You can use an OBDII scanner to clear the code, but ensure the issue is fully resolved to prevent the code from returning.
9. Is the P116D code covered under warranty for a 2018 Chevrolet Silverado?
It depends on your warranty terms. Emissions-related components like the NOx sensor may be covered under the emissions warranty.
10. How can I prevent the P116D code from recurring?
Regular maintenance, inspecting wiring for damage, and using high-quality fuel can help prevent issues with the NOx sensor and its circuit.
Discuss the causes and fixes for P116D 2018 Chevrolet Silverado OBDII Code
Code P116D 2018 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.