P116F 2014 GMC Sierra Code - O2 Pump Current Control Circuit High Voltage (NOx Sensor 1)
Quick Answer
The P116F diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates an issue with the O2 Pump Current Control Circuit High Voltage related to the NOx Sensor 1. Common causes include Faulty O2 Pump Current Control Circuit: A malfunction in the O2 pump current control circuit can trigger this code, Wiring Issues: Damaged or corroded wiring connections related to the NOx sensor or O2 pump current control circuit can cause high voltage readings, ECM Malfunction: A problem with the engine control module (ECM) can also lead to this code being triggered. 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 2014 GMC Sierra indicates O2 Pump Current Control Circuit High Voltage (NOx Sensor 1).
- Common causes
- Common causes include Faulty O2 Pump Current Control Circuit: A malfunction in the O2 pump current control circuit can trigger this code, Wiring Issues: Damaged or corroded wiring connections related to the NOx sensor or O2 pump current control circuit can cause high voltage readings, ECM Malfunction: A problem with the engine control module (ECM) can also lead to this code being triggered.
- 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 2014 GMC Sierra Description
The P116F diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates an issue with the O2 Pump Current Control Circuit High Voltage related to the NOx Sensor 1. This code specifically points to a problem with the oxygen pump current control circuit, which is responsible for regulating the amount of oxygen in the exhaust system. The NOx sensor, or Nitrogen Oxide sensor, is crucial for monitoring and controlling the levels of nitrogen oxides in the exhaust gases.
Common Causes of P116F 2014 GMC Sierra
- Faulty O2 Pump Current Control Circuit: A malfunction in the O2 pump current control circuit can trigger this code.
- Wiring Issues: Damaged or corroded wiring connections related to the NOx sensor or O2 pump current control circuit can cause high voltage readings.
- ECM Malfunction: A problem with the engine control module (ECM) can also lead to this code being triggered.
- NOx Sensor Failure: A faulty NOx sensor can disrupt the communication between the sensor and the ECM, causing high voltage readings.
Symptoms of P116F 2014 GMC Sierra
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
- Reduced Fuel Efficiency: A malfunction in the O2 pump current control circuit can lead to poor fuel-air mixture ratios, resulting in decreased fuel efficiency.
- Rough Idle: The engine may experience rough idling or hesitation during acceleration due to the disrupted combustion process.
- Increased Emissions: Higher levels of nitrogen oxides in the exhaust gases can lead to increased emissions, potentially causing the vehicle to fail emissions tests.
How to Fix P116F 2014 GMC Sierra
- Diagnose the Issue: Use a diagnostic scanner to retrieve the specific trouble code and perform a thorough inspection of the O2 pump current control circuit, wiring, and NOx sensor.
- Replace NOx Sensor: If the NOx sensor is found to be faulty, replace it with a new sensor to ensure accurate readings.
- Check Wiring Connections: Inspect the wiring connections related to the O2 pump current control circuit and NOx sensor for any damage or corrosion, repairing or replacing as needed.
- Reset the ECM: Clear the trouble code from the ECM and reset the system to see if the issue persists after repairs have been made.
- Test Drive: Take the vehicle for a test drive to ensure that the repairs have resolved the issue and that the check engine light does not reappear.
Cost to Fix P116F 2014 GMC Sierra
The typical repair costs for addressing a P116F code on a 2014 GMC Sierra can range from $200 to $500, including parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It's recommended to check local rates for a more accurate estimate.
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Frequently Asked Questions about P116F 2014 GMC Sierra Code
What does OBDII code P116F mean for a 2014 GMC Sierra?
Code P116F indicates an issue with the O2 Pump Current Control Circuit High Voltage for NOx Sensor 1, which monitors nitrogen oxide levels in the exhaust.
What are the common symptoms of code P116F in a GMC Sierra?
Symptoms can include a check engine light, reduced fuel efficiency, poor engine performance, and possible limp mode activation.
What causes the P116F code in a 2014 GMC Sierra?
Common causes include a faulty NOx sensor, wiring issues such as damaged or corroded connectors, or problems with the vehicle’s PCM (Powertrain Control Module).
How do I diagnose the P116F code on my GMC Sierra?
Start by inspecting the NOx sensor wiring and connectors for damage or corrosion, then test the sensor itself and check for proper voltage readings using a scan tool.
Can I drive my 2014 GMC Sierra with code P116F?
Driving is possible but not recommended, as this code can lead to decreased engine performance and increased emissions. Prompt repairs are advised.
How do I fix code P116F on a GMC Sierra?
Repairs may involve replacing the NOx sensor, repairing or replacing damaged wiring, or reprogramming or replacing the PCM if necessary.
What is the cost of repairing code P116F on a 2014 GMC Sierra?
Repair costs vary but typically range from $200 to $600, depending on whether the NOx sensor or other components need replacement.
Can I clear code P116F without fixing the issue?
Clearing the code without addressing the underlying issue may temporarily turn off the check engine light, but the code will likely return, and performance issues may persist.
How can I prevent code P116F from occurring again?
Regular maintenance, including checking wiring and connectors for corrosion or damage, can help prevent recurrence. Using high-quality fuel may also reduce NOx sensor wear.
Does code P116F affect emissions testing?
Yes, code P116F can cause your vehicle to fail emissions testing due to increased nitrogen oxide levels in the exhaust.
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