P116F 2017 GMC Sierra Code - O2 Pump Current Control Circuit High Voltage (NOx Sensor 1)
Quick Answer
The P116F diagnostic trouble code (DTC) in a 2017 GMC Sierra indicates a problem with the O2 pump current control circuit, specifically high voltage detected by the NOx sensor 1. Common causes include Faulty NOx sensor, Damaged wiring or connectors in the O2 pump current control circuit, ECM malfunction. 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 GMC Sierra indicates O2 Pump Current Control Circuit High Voltage (NOx Sensor 1).
- Common causes
- Common causes include Faulty NOx sensor, Damaged wiring or connectors in the O2 pump current control circuit, ECM malfunction.
- 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 GMC Sierra Description
The P116F diagnostic trouble code (DTC) in a 2017 GMC Sierra indicates a problem with the O2 pump current control circuit, specifically high voltage detected by the NOx sensor 1. The NOx sensor is responsible for monitoring the levels of nitrogen oxide in the exhaust gases to ensure compliance with emissions regulations. When the O2 pump current control circuit shows high voltage, it means that the system is receiving a signal indicating an abnormal amount of oxygen in the exhaust stream.
Common Causes of P116F 2017 GMC Sierra
- Faulty NOx sensor
- Damaged wiring or connectors in the O2 pump current control circuit
- ECM malfunction
- Exhaust leaks
- Contaminated or poor-quality fuel
Symptoms of P116F 2017 GMC Sierra
- Decreased fuel efficiency
- Engine misfires or hesitation
- Illumination of the check engine light
- Increased emissions output
- Rough idling or stalling
How to Fix P116F 2017 GMC Sierra
- Use an OBD-II scanner to confirm the P116F code and diagnose the specific issue with the NOx sensor.
- Inspect the wiring and connectors in the O2 pump current control circuit for any damage or corrosion. Repair or replace as necessary.
- Test the NOx sensor's functionality and replace it if it is found to be faulty.
- Clear the DTC and reset the ECM to see if the issue persists.
- Perform a road test to ensure that the problem has been resolved and that the vehicle's performance and emissions are back to normal.
Cost to Fix P116F 2017 GMC Sierra
The typical repair costs for addressing a P116F code in a 2017 GMC Sierra can vary depending on the specific cause of the issue. Replacement of a faulty NOx sensor can cost between $200 and $500, while repairing damaged wiring or connectors may range from $100 to $300. Labor costs can add an additional $100 to $300, with total repair costs potentially amounting to $400 to $1000. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check local rates for a more accurate estimate.
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Frequently Asked Questions about P116F 2017 GMC Sierra Code
1. What does the OBDII code P116F mean on a 2017 GMC Sierra?
P116F indicates an issue with the O2 pump current control circuit for NOx Sensor 1, where the voltage is higher than expected.
2. What are the common symptoms of code P116F?
Symptoms may include the check engine light turning on, reduced fuel efficiency, poor engine performance, or the vehicle entering limp mode.
3. What causes the P116F code to appear?
Common causes include a faulty NOx sensor, damaged wiring or connectors in the O2 pump circuit, or a malfunctioning engine control module (ECM).
4. Can a faulty NOx sensor trigger the P116F code?
Yes, a faulty or failing NOx sensor is one of the most common causes of this code.
5. How do I diagnose the P116F trouble code?
Begin by inspecting the wiring and connectors for damage or corrosion, then test the NOx sensor and the O2 pump circuit using a multimeter or scan tool.
6. Can I drive with the P116F code active?
It is not recommended to drive with this code active, as it can lead to increased emissions, reduced performance, and potential damage to the catalytic converter.
7. How is the P116F code fixed?
Repairs may involve replacing the NOx sensor, repairing damaged wiring or connectors, or reprogramming or replacing the ECM if necessary.
8. What tools are needed to fix the P116F code?
You may need a diagnostic scan tool, a multimeter, and basic automotive tools to inspect and repair wiring or replace the NOx sensor.
9. How much does it cost to repair the P116F code on a 2017 GMC Sierra?
The cost varies, but replacing a NOx sensor typically costs $300–$600, including parts and labor. Wiring repairs may cost less, depending on the extent of the damage.
10. Can a software update fix the P116F code?
In some cases, a software update to the ECM may resolve the issue if the problem is related to incorrect programming. Check with a dealership or qualified technician.
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