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Engine-Codes – GMC – P116D 2015 GMC Sierra

P116D 2015 GMC Sierra Code - O2 Pump Current Control Circuit (NOx Sensor 1)

Quick Answer

The P116D code for a 2015 GMC Sierra relates to the O2 pump current control circuit for the NOx sensor 1. Common causes include Faulty O2 Pump Current Control Module, Wiring or connector issues in the O2 pump current control circuit, Malfunctioning 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 2015 GMC Sierra indicates O2 Pump Current Control Circuit (NOx Sensor 1).
Common causes
Common causes include Faulty O2 Pump Current Control Module, Wiring or connector issues in the O2 pump current control circuit, Malfunctioning 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P116D 2015 GMC Sierra Description

The P116D code for a 2015 GMC Sierra relates to the O2 pump current control circuit for the NOx sensor 1. This code indicates a malfunction in the system responsible for controlling the pump current that supplies power to the NOx sensor, which measures the level of nitrogen oxide in the exhaust gases.

OBDII Code P116D 2015 GMC Sierra - O2 Pump Current Control Circuit (NOx Sensor 1)
P116D 2015 GMC Sierra Code - O2 Pump Current Control Circuit (NOx Sensor 1)

Common Causes of P116D 2015 GMC Sierra

  1. Faulty O2 Pump Current Control Module
  2. Wiring or connector issues in the O2 pump current control circuit
  3. Malfunctioning NOx sensor
  4. Corrosion or damage to the sensor or related components
  5. Software or calibration issues with the engine control module

Symptoms of P116D 2015 GMC Sierra

  1. Check Engine Light: The most common symptom associated with the P116D code is the illumination of the check engine light on the vehicle's dashboard.
  2. Decreased Fuel Efficiency: A malfunctioning O2 pump current control circuit can lead to decreased fuel efficiency as the engine may not be running at optimal levels.
  3. Rough Idling: The engine may experience rough idling or hesitation when the O2 pump current control circuit is not functioning properly.
  4. Increased Emissions: The vehicle may fail emissions tests or emit higher levels of pollutants due to inaccurate readings from the NOx sensor.

How to Fix P116D 2015 GMC Sierra

  1. Diagnose the Issue: Use an OBD-II scanner to read the trouble codes and perform a thorough inspection of the O2 pump current control circuit and related components.
  2. Replace the NOx Sensor: If the NOx sensor is found to be faulty, it may need to be replaced to address the issue.
  3. Check Wiring and Connectors: Inspect the wiring and connectors in the O2 pump current control circuit for any signs of damage or corrosion. Repair or replace as needed.
  4. Reset the Engine Control Module: Clear the trouble codes and reset the engine control module to see if the issue persists.
  5. Test Drive: After making the necessary repairs, take the vehicle for a test drive to ensure that the issue has been resolved and the check engine light does not reappear.

Cost to Fix P116D 2015 GMC Sierra

The cost of repairing a P116D code related to the O2 pump current control circuit in a 2015 GMC Sierra can vary depending on the exact cause of the issue and the extent of the repairs needed. On average, the cost of parts for this repair can range from $200 to $500, with labor costs adding an additional $100 to $300. Overall, the total repair cost can fall between $300 and $800.

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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 P116D 2015 GMC Sierra Code

1. What are common symptoms of OBDII code P116D in a 2015 GMC Sierra?

- Common symptoms include reduced engine performance, decreased fuel efficiency, rough idling, and the illumination of the check engine light.

2. What does the O2 Pump Current Control Circuit (NOx Sensor 1) error code P116D indicate in a 2015 GMC Sierra?

- This code indicates a malfunction in the oxygen pump current control circuit related to the NOx (nitrogen oxide) sensor 1 in the vehicle's emissions system.

3. What are possible causes of the P116D error code in a 2015 GMC Sierra?

- Potential causes include a faulty NOx sensor, damaged wiring or connectors in the O2 pump current control circuit, a malfunctioning PCM (powertrain control module), or issues with the sensor's heater circuit.

4. How serious is the O2 Pump Current Control Circuit (NOx Sensor 1) error code P116D in a 2015 GMC Sierra?

- While the vehicle may still be operable with this code present, it is important to address it promptly to prevent potential damage to the emissions system and ensure optimal engine performance.

5. Can I continue driving my 2015 GMC Sierra with the P116D OBDII code?

- It is generally not recommended to continue driving the vehicle with this code as it can lead to decreased fuel efficiency, poor engine performance, and potential emissions issues.

6. How can I diagnose and repair the P116D code in my 2015 GMC Sierra?

- Diagnosing and repairing this code typically involves using a diagnostic scanner to pinpoint the exact cause, inspecting the NOx sensor and related components, checking wiring and connectors for damage, and potentially replacing the faulty parts.

7. Are there any DIY tips for resolving the P116D error code in a 2015 GMC Sierra?

- DIY tips include checking for loose or damaged wiring, ensuring proper connections, and inspecting the NOx sensor for signs of damage. However, complex repairs may require professional assistance.

8. Will resetting the check engine light clear the P116D code in my 2015 GMC Sierra?

- Resetting the check engine light may temporarily clear the code, but if the underlying issue causing the P116D code is not addressed, the light is likely to come back on.

9. How much does it cost to fix the O2 Pump Current Control Circuit (NOx Sensor 1) error code P116D in a 2015 GMC Sierra?

- Repair costs can vary depending on the exact cause of the issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.

10. Can a mechanic easily fix the P116D error code in a 2015 GMC Sierra?

- A qualified mechanic with experience in diagnosing and repairing emission system issues should be able to efficiently address the P116D code in a 2015 GMC Sierra.

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