P116E 2015 GMC Sierra Code - O2 Pump Current Control Circuit Low Voltage (NOx Sensor 1)
Quick Answer
The P116E code for a 2015 GMC Sierra specifically refers to an issue with the O2 Pump Current Control Circuit Low Voltage for NOx Sensor 1. Common causes include Faulty O2 pump current control circuit, Wiring or connection issues, Faulty 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 2015 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, Faulty 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 2015 GMC Sierra Description
The P116E code for a 2015 GMC Sierra specifically refers to an issue with the O2 Pump Current Control Circuit Low Voltage for NOx Sensor 1. This code indicates that there is a problem with the oxygen pump current control circuit, which is responsible for regulating the voltage for the NOx (nitrogen oxide) sensor. The NOx sensor is crucial for monitoring and controlling harmful emissions in the vehicle's exhaust system. When this circuit is not functioning properly, it can lead to incorrect readings from the sensor, resulting in poor fuel efficiency, increased emissions, and potential long-term damage to the engine and catalytic converter.
Common Causes of P116E 2015 GMC Sierra
- Faulty O2 pump current control circuit
- Wiring or connection issues
- Faulty NOx sensor
- Engine computer (PCM) malfunction
- Exhaust system leaks
Symptoms of P116E 2015 GMC Sierra
- Decreased fuel efficiency
- Check Engine Light illuminated
- Rough idling or engine misfires
- Failed emissions test
- Reduced engine performance
How to Fix P116E 2015 GMC Sierra
- Diagnose the specific cause of the issue using a scan tool to pinpoint the exact source of the problem.
- Inspect and test the O2 pump current control circuit, NOx sensor, and wiring for any faults or damage.
- Repair or replace any damaged components, such as the NOx sensor, wiring, or control circuit.
- Clear the diagnostic trouble codes and reset the Check Engine Light.
- Perform a test drive to ensure the issue has been resolved and that the system is functioning correctly.
Cost to Fix P116E 2015 GMC Sierra
The cost of repairing a P116E code on a 2015 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. Typically, the cost of parts for this repair can range from $200 to $500, with labor costs adding an additional $100 to $300. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary significantly, so it's advisable to check with local shops for a more accurate estimate.
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Frequently Asked Questions about P116E 2015 GMC Sierra Code
1. What does the OBDII code P116E mean on a 2015 GMC Sierra?
The P116E code indicates a problem with the O2 Pump Current Control Circuit for NOx Sensor 1, specifically low voltage being detected.
2. What are the common symptoms of the P116E code in a GMC Sierra?
Symptoms may include a check engine light, reduced fuel efficiency, rough idling, poor engine performance, or the vehicle entering limp mode.
3. What causes the P116E code to appear on a 2015 GMC Sierra?
Common causes include a faulty NOx sensor, damaged wiring or connectors in the sensor circuit, a failed ECM, or an exhaust system issue affecting sensor operation.
4. Can I drive my 2015 GMC Sierra with a P116E code?
While the vehicle may still run, driving with a P116E code can lead to reduced performance and potential long-term damage to the emissions system. It’s best to address the issue promptly.
5. How do I diagnose the P116E code on my GMC Sierra?
Start by inspecting the wiring and connectors for the NOx sensor, checking for damage or corrosion. Next, test the sensor itself and the circuit with a multimeter, and verify ECM function.
6. How do I fix the P116E code on a 2015 GMC Sierra?
Repairs may include replacing the faulty NOx sensor, repairing or replacing damaged wiring or connectors, or reprogramming/updating the ECM if necessary.
7. How much does it cost to repair a P116E code on a GMC Sierra?
Costs can vary depending on the repair, but replacing a NOx sensor typically ranges from $300 to $600, including parts and labor.
8. Can a dirty or clogged exhaust system trigger the P116E code?
Yes, a clogged exhaust system can affect the operation of the NOx sensor and may contribute to the P116E code.
9. Is the P116E code covered under warranty for a 2015 GMC Sierra?
It depends on your vehicle's warranty. Emissions-related components like the NOx sensor may be covered under the emissions warranty, so check with your dealer.
10. Will clearing the P116E code fix the problem permanently?
Clearing the code with a scan tool will only temporarily turn off the check engine light. If the underlying issue isn’t fixed, the code will return.
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