P116E 2016 GMC Sierra Code - O2 Pump Current Control Circuit Low Voltage (NOx Sensor 1)
Quick Answer
The P116E diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the O2 Pump Current Control Circuit Low Voltage, specifically for NOx Sensor 1. Common causes include Faulty O2 pump current control circuit, Wiring or connection issues in the circuit, Defective NOx sensor. 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
- P116E 2016 GMC Sierra indicates O2 Pump Current Control Circuit Low Voltage (NOx Sensor 1).
- Common causes
- Common causes include Faulty O2 pump current control circuit, Wiring or connection issues in the circuit, Defective NOx sensor.
- 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 P116E 2016 GMC Sierra Description
The P116E diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the O2 Pump Current Control Circuit Low Voltage, specifically for NOx Sensor 1. This code indicates that there is an issue with the control circuitry responsible for managing the current flow to the oxygen sensor. The NOx sensor is critical for monitoring and controlling the amount of nitrogen oxide emissions produced by the vehicle. When the O2 pump current control circuit detects low voltage, it can lead to inaccurate readings from the sensor, potentially causing the vehicle to run inefficiently or produce higher emissions.
Common Causes of P116E 2016 GMC Sierra
- Faulty O2 pump current control circuit
- Wiring or connection issues in the circuit
- Defective NOx sensor
- ECU (engine control unit) malfunction
- Exhaust system leaks or damage
Symptoms of P116E 2016 GMC Sierra
- Check engine light illuminated
- Reduced fuel efficiency
- Engine running rough or misfiring
- Increased emissions output
- Loss of power or acceleration
How to Fix P116E 2016 GMC Sierra
- Diagnose the specific cause of the low voltage issue by performing a thorough inspection of the O2 pump current control circuit, NOx sensor, wiring, and connections.
- Replace the faulty NOx sensor or O2 pump current control circuit if necessary.
- Repair any damaged wiring or connections in the circuit.
- Clear the DTC and reset the ECU to ensure the issue has been resolved.
- Perform a test drive and monitor the sensor readings to verify that the repair was successful.
Cost to Fix P116E 2016 GMC Sierra
The typical repair costs for addressing a P116E code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, parts for replacing a NOx sensor or O2 pump current control circuit can range from $100 to $300, while labor costs may amount to $100 to $200. Overall, the total repair cost could fall within the $200 to $500 range. However, it's essential to consider that actual prices can vary based on factors such as location, shop rates, and whether OEM or aftermarket parts are used. It is recommended to obtain quotes from local auto repair shops for a more accurate estimate.
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Frequently Asked Questions about P116E 2016 GMC Sierra Code
1. What does the OBDII code P116E mean on a 2016 GMC Sierra?
The code P116E indicates "O2 Pump Current Control Circuit Low Voltage" for NOx Sensor 1, meaning the sensor detects a low voltage issue in the oxygen pump circuit.
2. What are the symptoms of code P116E in a GMC Sierra?
Symptoms may include a check engine light, reduced fuel efficiency, engine performance issues, or the vehicle entering "limp mode."
3. What causes the P116E code to appear?
Common causes include a faulty NOx sensor, damaged wiring or connectors in the sensor circuit, or a failing engine control module (ECM).
4. Can a bad NOx sensor cause the P116E code?
Yes, a malfunctioning NOx sensor is one of the most common causes of the P116E code.
5. How do I diagnose the P116E code on my 2016 GMC Sierra?
Start by inspecting the NOx sensor wiring and connectors for damage. Use a scan tool to monitor sensor readings and test the circuit voltage.
6. Is it safe to drive with a P116E code on my GMC Sierra?
It’s not recommended to drive with this code for an extended period, as it can lead to reduced engine performance and potential damage to other components.
7. How do I fix the P116E code on my GMC Sierra?
Repairs may include replacing the NOx sensor, repairing damaged wiring or connectors, or reprogramming the ECM if necessary.
8. How much does it cost to fix the P116E code?
Costs vary depending on the repair, but replacing the NOx sensor typically ranges from $300 to $500, including parts and labor.
9. Can a dirty or clogged NOx sensor cause the P116E code?
While less common, a dirty or clogged NOx sensor can contribute to improper readings and trigger the code.
10. Will clearing the P116E code with a scan tool fix the problem?
Clearing the code will turn off the check engine light temporarily, but it won’t fix the underlying issue causing the code.
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