P116C 2017 Chevrolet Silverado Code - O2 Signal Circuit High Voltage (NOx Sensor 1)
Quick Answer
The P116C diagnostic trouble code (DTC) in a 2017 Chevrolet Silverado indicates an issue with the O2 signal circuit's high voltage, specifically related to the NOx sensor 1. Common causes include Faulty oxygen sensor, Damaged NOx sensor, Wiring issues. 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
- P116C 2017 Chevrolet Silverado indicates O2 Signal Circuit High Voltage (NOx Sensor 1).
- Common causes
- Common causes include Faulty oxygen sensor, Damaged NOx sensor, Wiring issues.
- 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 P116C 2017 Chevrolet Silverado Description
The P116C diagnostic trouble code (DTC) in a 2017 Chevrolet Silverado indicates an issue with the O2 signal circuit's high voltage, specifically related to the NOx sensor 1. This code typically points to a problem with the oxygen sensor's ability to accurately measure the amount of oxygen in the exhaust gases. The NOx sensor is responsible for monitoring nitric oxide and nitrogen dioxide levels in the exhaust system to ensure compliance with emissions standards and optimize engine performance.
Common Causes of P116C 2017 Chevrolet Silverado
- Faulty oxygen sensor
- Damaged NOx sensor
- Wiring issues
- ECM malfunctions
- Exhaust system leaks
Symptoms of P116C 2017 Chevrolet Silverado
- Decreased fuel efficiency
- Increased emissions
- Engine misfires
- Rough idling
- Check Engine Light illuminated
How to Fix P116C 2017 Chevrolet Silverado
- Perform a comprehensive diagnostic scan to confirm the P116C code and identify the exact cause of the issue.
- Inspect the wiring harness and connectors for any damage or corrosion, repairing or replacing as necessary.
- Test the oxygen sensor and NOx sensor to determine if they are functioning correctly, replacing any faulty sensors.
- Check the ECM for any malfunctions and reprogram or replace it if needed.
- Clear the DTCs and perform a road test to ensure the repair was successful and the code does not return.
Cost to Fix P116C 2017 Chevrolet Silverado
The typical repair costs for addressing a P116C code in a 2017 Chevrolet Silverado can range from $200 to $600, including parts and labor. However, prices can vary depending on the specific diagnosis time, labor rates, location, vehicle make and model, and engine type. It is advisable to consult with local auto repair shops to get a more accurate estimate for this repair.
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Frequently Asked Questions about P116C 2017 Chevrolet Silverado Code
What does OBDII code P116C mean on a 2017 Chevrolet Silverado?
P116C indicates a high voltage issue in the O2 signal circuit for NOx Sensor 1, which monitors nitrogen oxide emissions in the exhaust system.
What are common symptoms of code P116C?
Common symptoms include the check engine light turning on, reduced fuel efficiency, poor engine performance, and potential limp mode activation.
What causes the P116C code to appear?
Possible causes include a faulty NOx Sensor 1, damaged wiring or connectors in the O2 signal circuit, excessive exhaust contamination, or a malfunctioning engine control module (ECM).
Can a dirty exhaust system trigger the P116C code?
Yes, excessive soot or contamination in the exhaust system can affect NOx Sensor 1 and lead to this code.
How do you diagnose the P116C code?
Diagnosis involves scanning for codes with an OBDII scanner, inspecting the NOx Sensor 1 wiring and connector for damage, and testing the sensor's voltage output.
Can you drive with the P116C code active?
Driving with this code is not recommended, as it may lead to poor fuel economy, increased emissions, and potential engine damage over time.
How is the P116C code typically fixed?
Repairs may include replacing the faulty NOx Sensor 1, repairing damaged wiring or connectors, or cleaning the exhaust system to remove soot buildup.
How much does it cost to fix the P116C code?
Repair costs can range from $200 to $600, depending on whether the issue is with the sensor, wiring, or other components.
Can a software update resolve the P116C code?
In some cases, an ECM software update from the dealership may be required to address compatibility or sensor calibration issues.
What tools are needed to fix the P116C code?
Tools typically include an OBDII scanner, a multimeter for testing voltage, and basic hand tools for replacing the sensor or repairing wiring.
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