P116F 2016 GMC Sierra Code - O2 Pump Current Control Circuit High Voltage (NOx Sensor 1)
Quick Answer
The P116F diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to an issue with the O2 Pump Current Control Circuit High Voltage, specifically related to the NOx Sensor 1. Common causes include Faulty NOx Sensor: A malfunctioning NOx sensor can send incorrect signals to the O2 pump, leading to high voltage in the circuit, Wiring Issues: Damaged or corroded wiring in the O2 pump current control circuit can disrupt the electrical signals, triggering the P116F code, O2 Pump Failure: A failing O2 pump may not be able to regulate oxygen levels in the exhaust system, resulting in high voltage in the circuit. 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
- P116F 2016 GMC Sierra indicates O2 Pump Current Control Circuit High Voltage (NOx Sensor 1).
- Common causes
- Common causes include Faulty NOx Sensor: A malfunctioning NOx sensor can send incorrect signals to the O2 pump, leading to high voltage in the circuit, Wiring Issues: Damaged or corroded wiring in the O2 pump current control circuit can disrupt the electrical signals, triggering the P116F code, O2 Pump Failure: A failing O2 pump may not be able to regulate oxygen levels in the exhaust system, resulting in high voltage in the circuit.
- 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 P116F 2016 GMC Sierra Description
The P116F diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to an issue with the O2 Pump Current Control Circuit High Voltage, specifically related to the NOx Sensor 1. This code indicates that there is a problem with the electrical circuit that controls the current for the O2 pump, which is responsible for regulating the oxygen levels in the exhaust system. The NOx sensor plays a crucial role in monitoring and reducing nitrogen oxide emissions, which are harmful pollutants. When this circuit detects a high voltage, it means that the O2 pump is not functioning properly, leading to potential issues with emissions control and engine performance.
Common Causes of P116F 2016 GMC Sierra
- Faulty NOx Sensor: A malfunctioning NOx sensor can send incorrect signals to the O2 pump, leading to high voltage in the circuit.
- Wiring Issues: Damaged or corroded wiring in the O2 pump current control circuit can disrupt the electrical signals, triggering the P116F code.
- O2 Pump Failure: A failing O2 pump may not be able to regulate oxygen levels in the exhaust system, resulting in high voltage in the circuit.
- Control Module Malfunction: Issues with the control module that regulates the O2 pump current control circuit can also cause the P116F code to appear.
Symptoms of P116F 2016 GMC Sierra
- Check Engine Light: The most common symptom associated with the P116F code is the illumination of the check engine light on the vehicle's dashboard.
- Decreased Fuel Efficiency: A malfunctioning O2 pump can lead to decreased fuel efficiency as the engine may not be running optimally.
- Rough Idling: The engine may experience rough idling or hesitation when the O2 pump is not functioning correctly.
- Failed Emissions Test: If the NOx emissions are not properly controlled, the vehicle may fail emissions tests due to increased nitrogen oxide levels.
How to Fix P116F 2016 GMC Sierra
- Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble codes and pinpoint the exact cause of the problem.
- Inspect Wiring and Connections: Check the wiring and connections in the O2 pump current control circuit for any damage or corrosion, and repair or replace as needed.
- Test NOx Sensor: Test the NOx sensor to ensure it is functioning correctly and replace if necessary.
- Replace O2 Pump: If the O2 pump is found to be faulty, replace it with a new one to restore proper function.
- Clear Codes and Test Drive: After making the necessary repairs, clear the trouble codes from the vehicle's computer and test drive to ensure the issue has been resolved.
Cost to Fix P116F 2016 GMC Sierra
The typical repair costs for addressing a P116F code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a faulty NOx sensor or O2 pump can range from $200 to $500, including parts and labor. However, if the problem is related to wiring issues or a control module malfunction, the costs may be higher due to the additional diagnostic and repair work required. It's important to note that labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Additionally, prices for parts can also fluctuate based on the vehicle make and model. It's recommended to consult with a qualified mechanic to get an accurate estimate for the repair of a P116F code on a 2016 GMC Sierra.
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Frequently Asked Questions about P116F 2016 GMC Sierra Code
1. What does the OBDII code P116F mean on a 2016 GMC Sierra?
The code P116F indicates "O2 Pump Current Control Circuit High Voltage (NOx Sensor 1)," meaning there's an issue with the current control circuit in the NOx sensor's oxygen pump.
2. What are the common symptoms of code P116F on a 2016 GMC Sierra?
Symptoms may include the check engine light turning on, reduced fuel efficiency, poor engine performance, and potential limp mode activation.
3. What causes code P116F to appear on a 2016 GMC Sierra?
Common causes include a faulty NOx sensor, damaged wiring or electrical connections, a malfunctioning control module, or excessive buildup on the sensor.
4. Can I drive my 2016 GMC Sierra with a P116F code?
While the vehicle may still be drivable, it's not recommended as prolonged operation can lead to further damage or increased emissions.
5. How do I diagnose a P116F code on a 2016 GMC Sierra?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting the NOx sensor and its wiring for damage, and testing the sensor's voltage and resistance.
6. How is a P116F code fixed on a 2016 GMC Sierra?
Repairs may include replacing the NOx sensor, repairing or replacing damaged wiring, and updating or reprogramming the vehicle's ECM if required.
7. How much does it cost to repair a P116F code on a 2016 GMC Sierra?
Repair costs can vary but typically range from $300 to $900, depending on whether the NOx sensor or wiring needs replacement.
8. Can a dirty NOx sensor cause a P116F code on a 2016 GMC Sierra?
Yes, a dirty or contaminated NOx sensor can cause inaccurate readings and trigger this code.
9. Is the P116F code related to emissions on a 2016 GMC Sierra?
Yes, the P116F code is tied to emissions as it involves the NOx sensor, which monitors nitrogen oxide levels to ensure proper emissions control.
10. Will clearing the P116F code fix the problem on a 2016 GMC Sierra?
Clearing the code may turn off the check engine light temporarily, but the underlying issue must be addressed to prevent the code from returning.
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