P013C 2017 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 2017 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 2017 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 2017 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 2017 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 2017 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 2017 GMC Sierra Code
1. What does the OBDII code P013C mean on a 2017 GMC Sierra?
P013C indicates "HO2S Slow Response Rich to Lean Bank 2 Sensor 2," meaning the downstream oxygen sensor on Bank 2 is not switching between rich and lean as expected.
2. What are the symptoms of code P013C on a 2017 GMC Sierra?
Common symptoms include a lit check engine light, decreased fuel efficiency, potential emissions test failure, and possibly a slight reduction in engine performance.
3. What causes the P013C code on a 2017 GMC Sierra?
The primary causes include a faulty oxygen sensor (Bank 2, Sensor 2), damaged wiring or connections, exhaust leaks, or contamination of the sensor due to oil or coolant leaks.
4. Can I still drive my 2017 GMC Sierra with a P013C code?
Yes, but it is not recommended to drive for extended periods as it may lead to increased emissions, reduced fuel efficiency, and potential damage to other components like the catalytic converter.
5. How do I fix the P013C code on my 2017 GMC Sierra?
Repairs may include replacing the Bank 2 Sensor 2 oxygen sensor, repairing damaged wiring or connectors, addressing any exhaust leaks, or resolving issues like oil or coolant contamination.
6. How do I locate Bank 2 Sensor 2 on a 2017 GMC Sierra?
Bank 2 is the side of the engine opposite the number one cylinder (passenger side on a V8 engine), and Sensor 2 refers to the downstream oxygen sensor located after the catalytic converter on that side.
7. What tools are needed to diagnose and fix a P013C code?
You’ll need an OBDII scanner, a multimeter for testing wiring, and possibly a socket wrench with an O2 sensor socket for sensor replacement.
8. Can a bad catalytic converter cause the P013C code?
While not a direct cause, a failing catalytic converter might lead to irregular exhaust flow, potentially affecting oxygen sensor readings and triggering this code.
9. How much does it cost to repair the P013C code on a 2017 GMC Sierra?
The cost can range from $150 to $400, depending on whether only the oxygen sensor needs replacement or if additional repairs like fixing an exhaust leak are required.
10. Can a dirty air filter trigger the P013C code on a 2017 GMC Sierra?
While unlikely, a severely clogged air filter can lead to improper air-fuel mixtures, potentially affecting oxygen sensor behavior and contributing to sensor-related codes.
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