AutoCodes – GMC – P013C 2014 GMC Sierra

P013C 2014 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 2014 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.

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Code Popularity 317

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 28, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P013C 2014 GMC Sierra Description

The Heated Oxygen Sensors (HO2S) are used for fuel control and catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content of the exhaust stream. When the engine is started, the Engine Control Module (ECM) operates in an Open Loop mode, ignoring the HO2S signal voltage while calculating the air-to-fuel ratio. While the engine runs, the HO2S heats up and begins to generate a voltage within a range of 0 - 1, 000 mV. Once sufficient HO2S voltage fluctuation is observed by the ECM, Closed Loop is entered. The ECM uses the HO2S voltage to determine the air-to-fuel ratio. An HO2S voltage that increases toward 1, 000 mV indicates a rich fuel mixture. An HO2S voltage that decreases toward 0 mV indicates a lean fuel mixture.
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.

OBDII Code P013C 2014 GMC Sierra - HO2S Slow Response Rich to Lean Bank 2 Sensor 2 - AutoCodes.com — P013C 2014 GMC Sierra Code - HO2S Slow Response Rich to Lean Bank 2 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P013C 2014 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 2014 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.

What does this mean?

Code Tech Notes

Replacing the Rear Heated Oxygen Sensors (HO2S) usually takes care of the problem.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P013C 2014 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P013C 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P013C in a 2014 GMC Sierra?

The common symptoms of code P013C "HO2S Slow Response Rich to Lean Bank 2 Sensor 2" in a 2014 GMC Sierra may include poor fuel economy, rough idle, engine hesitation, and possible stalling.

2. What causes the OBDII code P013C to trigger in a 2014 GMC Sierra?

Code P013C typically triggers in a 2014 GMC Sierra due to a slow response of the oxygen sensor (HO2S) located in Bank 2 Sensor 2, indicating a transition from a rich to lean air/fuel mixture.

3. How can I diagnose the OBDII code P013C in my 2014 GMC Sierra?

To diagnose code P013C in a 2014 GMC Sierra, you can use an OBDII scanner to retrieve the specific fault code. Additionally, inspect the Bank 2 Sensor 2 oxygen sensor for any physical damage or contamination that may affect its performance.

4. Can a faulty oxygen sensor cause code P013C in a 2014 GMC Sierra?

Yes, a faulty oxygen sensor in Bank 2 Sensor 2 can cause code P013C to trigger in a 2014 GMC Sierra. A slow response or malfunctioning oxygen sensor can lead to inaccurate readings of the air/fuel mixture, resulting in the rich to lean transition issue.

5. What are the repair options for OBDII code P013C in a 2014 GMC Sierra?

Repair options for code P013C in a 2014 GMC Sierra may include replacing the Bank 2 Sensor 2 oxygen sensor, repairing any damaged wiring or connectors related to the sensor, or addressing any underlying engine issues affecting the air/fuel mixture.

6. Is it safe to continue driving with OBDII code P013C illuminated in a 2014 GMC Sierra?

While the vehicle may still be operable with code P013C illuminated in a 2014 GMC Sierra, it is recommended to address the issue promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.

7. How much does it typically cost to repair OBDII code P013C in a 2014 GMC Sierra?

The cost of repairing code P013C in a 2014 GMC Sierra can vary depending on the underlying cause of the issue. Replacing the Bank 2 Sensor 2 oxygen sensor or addressing wiring issues may cost a few hundred dollars, including parts and labor.

8. Can a DIY enthusiast fix OBDII code P013C in a 2014 GMC Sierra?

DIY enthusiasts with the necessary tools and automotive knowledge may be able to fix code P013C in a 2014 GMC Sierra by replacing the Bank 2 Sensor 2 oxygen sensor themselves. However, proper diagnosis and repair techniques are crucial to ensure a successful fix.

9. How long does it take to repair OBDII code P013C in a 2014 GMC Sierra?

The repair time for code P013C in a 2014 GMC Sierra can vary depending on the specific repair needed. Replacing the Bank 2 Sensor 2 oxygen sensor typically takes around 1-2 hours, but additional time may be needed for diagnosis and other repairs.

10. Are there any maintenance tips to prevent OBDII code P013C from recurring in a 2014 GMC Sierra?

To prevent code P013C from recurring in a 2014 GMC Sierra, it's essential to follow the manufacturer's recommended maintenance schedule, including regular oxygen sensor inspections and ensuring the engine is properly tuned to maintain the correct air/fuel mixture.