P013C 2016 GMC Sierra Code - HO2S Slow Response Rich to Lean Bank 2 Sensor 2
Quick Answer
The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Common causes include Faulty Heated Oxygen Bank 2 Sensor 2, Heated Oxygen Bank 2 Sensor 2 harness is open or shorted, Heated Oxygen Bank 2 Sensor 2 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P013C 2016 GMC Sierra indicates HO2S Slow Response Rich to Lean Bank 2 Sensor 2.
- Common causes
- Common causes include Faulty Heated Oxygen Bank 2 Sensor 2, Heated Oxygen Bank 2 Sensor 2 harness is open or shorted, Heated Oxygen Bank 2 Sensor 2 circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P013C 2016 GMC Sierra Description
The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter Closed Loop earlier and the ECM to calculate the air-to-fuel ratio sooner.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the accumulated mass airflow monitored during rich-to-lean transitions between 450 - 150 mV is greater than calibrated value.
What are the Possible Causes of the DTC P013C 2016 GMC Sierra?
- Faulty Heated Oxygen Bank 2 Sensor 2
- Heated Oxygen Bank 2 Sensor 2 harness is open or shorted
- Heated Oxygen Bank 2 Sensor 2 circuit poor electrical connection
- Low or high fuel system pressure
- Fuel contamination
- Faulty fuel injectors
- Exhaust gas leaks
- Engine vacuum leaks
How to Fix the DTC P013C 2016 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P013C 2016 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P013C 2016 GMC Sierra Code
1. What does the OBDII code P013C mean on a 2016 GMC Sierra?
P013C indicates that the Bank 2 Sensor 2 oxygen sensor is taking too long to switch from a rich to a lean condition, signaling a potential issue with the sensor or exhaust system.
2. What are the symptoms of code P013C in a 2016 GMC Sierra?
Common symptoms include a check engine light, reduced fuel efficiency, potential rough idling, and possibly failed emissions testing.
3. What causes the P013C code on a 2016 GMC Sierra?
The most common causes include a faulty downstream oxygen sensor (Bank 2 Sensor 2), exhaust leaks, wiring issues, or a buildup of contaminants on the sensor.
4. How do I diagnose a P013C code on a 2016 GMC Sierra?
Start by scanning for stored trouble codes, inspecting the oxygen sensor and its wiring for damage, checking for exhaust leaks, and monitoring live data for slow sensor response.
5. Can a dirty or clogged catalytic converter cause a P013C code?
Yes, a clogged or failing catalytic converter can affect the downstream oxygen sensor’s readings and trigger the P013C code.
6. Is it safe to drive a 2016 GMC Sierra with a P013C code?
While it may still be drivable, prolonged driving with this code can lead to reduced fuel efficiency and potential damage to the catalytic converter.
7. How do I fix the P013C code on a 2016 GMC Sierra?
Repairs may include replacing the faulty oxygen sensor, fixing exhaust leaks, cleaning or replacing the catalytic converter, or repairing damaged wiring or connectors.
8. How much does it cost to repair a P013C code on a 2016 GMC Sierra?
Repair costs vary, but replacing an oxygen sensor typically costs $150-$300, while fixing exhaust leaks or replacing a catalytic converter can be more expensive.
9. Can a bad oxygen sensor cause other problems besides the P013C code?
Yes, a bad oxygen sensor can lead to poor engine performance, reduced fuel economy, and potential damage to the catalytic converter over time.
10. How can I prevent the P013C code from recurring on my 2016 GMC Sierra?
Regular maintenance, using high-quality fuel, and promptly addressing exhaust system issues can help prevent this code from reappearing.
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