P116F 2017 Chevrolet Silverado Code - O2 Pump Current Control Circuit High Voltage (NOx Sensor 1)
Quick Answer
The P116F diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado refers to an issue with the O2 pump current control circuit showing high voltage in the NOx sensor 1. Common causes include Faulty NOx Sensor: The NOx sensor itself may be malfunctioning, sending incorrect signals to the ECM, Wiring Issues: Corrosion, damage, or poor connections in the wiring harness can disrupt the signal between the sensor and the ECM, Faulty ECM: A problem with the engine control module can lead to misinterpretation of sensor data. 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 2017 Chevrolet Silverado indicates O2 Pump Current Control Circuit High Voltage (NOx Sensor 1).
- Common causes
- Common causes include Faulty NOx Sensor: The NOx sensor itself may be malfunctioning, sending incorrect signals to the ECM, Wiring Issues: Corrosion, damage, or poor connections in the wiring harness can disrupt the signal between the sensor and the ECM, Faulty ECM: A problem with the engine control module can lead to misinterpretation of sensor data.
- 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 2017 Chevrolet Silverado Description
The P116F diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado refers to an issue with the O2 pump current control circuit showing high voltage in the NOx sensor 1. This code indicates a problem with the oxygen sensor pump current control circuit, specifically related to the NOx sensor 1 in the exhaust system. The NOx sensor is responsible for monitoring the levels of nitrogen oxide in the exhaust gases to ensure compliance with emissions regulations.
Common Causes of P116F 2017 Chevrolet Silverado
- Faulty NOx Sensor: The NOx sensor itself may be malfunctioning, sending incorrect signals to the ECM.
- Wiring Issues: Corrosion, damage, or poor connections in the wiring harness can disrupt the signal between the sensor and the ECM.
- Faulty ECM: A problem with the engine control module can lead to misinterpretation of sensor data.
- O2 Pump Malfunction: Issues with the O2 pump that controls the sensor's current can cause high voltage readings.
Symptoms of P116F 2017 Chevrolet Silverado
- 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 malfunctioning NOx sensor can lead to incorrect fuel mixture adjustments, resulting in decreased fuel efficiency.
- Rough Idle: The engine may experience rough idling or hesitation during acceleration due to improper fuel mixture.
- Failed Emissions Test: High levels of nitrogen oxide emissions can cause the vehicle to fail emissions testing.
How to Fix P116F 2017 Chevrolet Silverado
- Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble code and perform further testing to pinpoint the exact cause of the high voltage reading.
- Inspect Wiring: Check the wiring harness for any damage, corrosion, or loose connections. Repair or replace as needed.
- Test NOx Sensor: Test the NOx sensor to determine if it is functioning properly. Replace if necessary.
- Check ECM: Verify the functionality of the engine control module and reprogram or replace if a fault is detected.
- Repair or Replace O2 Pump: If the O2 pump is found to be faulty, repair or replace it to ensure proper current control.
Cost to Fix P116F 2017 Chevrolet Silverado
The typical repair costs for addressing a P116F code on a 2017 Chevrolet Silverado can range from $200 to $600, including parts and labor. However, it's important to note that 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, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. It's recommended to obtain quotes from local shops for a more accurate estimate.
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Frequently Asked Questions about P116F 2017 Chevrolet Silverado Code
1. What does the OBDII code P116F mean on a 2017 Chevrolet Silverado?
The P116F code indicates a high voltage issue in the O2 pump current control circuit of NOx Sensor 1, which monitors nitrogen oxide emissions.
2. What are the symptoms of the P116F code on a 2017 Silverado?
Common symptoms include a Check Engine Light, reduced fuel efficiency, poor engine performance, or the truck entering limp mode.
3. What causes the P116F code to appear?
Potential causes include a faulty NOx Sensor 1, damaged wiring or connectors in the circuit, or a malfunctioning engine control module (ECM).
4. Can I drive my 2017 Silverado with the P116F code?
While the vehicle may still run, driving with this code can result in reduced performance and potential damage to the emissions system.
5. How do I fix the P116F code on a Chevrolet Silverado?
Repairs may involve replacing the NOx Sensor 1, repairing or replacing damaged wiring, or reprogramming/updating the ECM.
6. How do you diagnose the P116F code on a 2017 Silverado?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting the wiring and connectors for damage, and testing the NOx sensor for proper operation.
7. What tools are needed to repair the P116F code?
Basic tools include an OBDII scanner, a multimeter for testing wiring, and potentially specialized tools to access and replace the NOx sensor.
8. How much does it cost to fix a P116F code on a 2017 Silverado?
Costs can vary, but replacing a NOx sensor typically ranges from $300 to $600, including parts and labor.
9. Can a dirty NOx sensor cause the P116F code?
While less common, contamination or buildup on the sensor could impact its performance and trigger this code.
10. Is the P116F code covered under warranty for a 2017 Silverado?
It may be covered if your vehicle is still under the emissions warranty, which typically lasts longer than the basic warranty. Check with your dealership.
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