AutoCodes – GMC – P0057 2014 GMC Sierra

P0057 2014 GMC Sierra Code - HO2S Heater Control Circuit Low Voltage Bank 2 Sensor 2

Quick Answer

Heated Oxygen Sensors (HO2S) are used for fuel control and post catalyst monitoring. Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2, Heated Oxygen Sensor Bank 2 Sensor 2 harness is open shorted, Heated Oxygen Sensor 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: P0057 2014 GMC Sierra indicates HO2S Heater Control Circuit Low Voltage Bank 2 Sensor 2.
Common causes: Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2, Heated Oxygen Sensor Bank 2 Sensor 2 harness is open shorted, Heated Oxygen Sensor 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 211

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 Mar 25, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0057 2014 GMC Sierra Description

Heated Oxygen Sensors (HO2S) are used for fuel control and post catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content in the exhaust stream. The HO2S must reach an operating temperature to provide an accurate voltage signal. A heating element inside the HO2S minimizes the time required for the sensors to reach operating temperature. Voltage is provided to the heater by an ignition voltage circuit through a fuse. With the engine running, the ground is provided to the heater by the HO2S heater low control circuit through a low side driver within the Engine Control Module (ECM). The ECM uses Pulse Width Modulation (PWM) to control the HO2S heater operation to maintain a specific HO2S operating temperature range.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects a short to ground in the heater output low side driver circuit of the heated oxygen sensor when the heater is commanded OFF for greater than 5 s.

OBDII Code P0057 2014 GMC Sierra - HO2S Heater Control Circuit Low Voltage Bank 2 Sensor 2 - AutoCodes.com — P0057 2014 GMC Sierra Code - HO2S Heater Control Circuit Low Voltage Bank 2 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0057 2014 GMC Sierra?

Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2
Heated Oxygen Sensor Bank 2 Sensor 2 harness is open shorted
Heated Oxygen Sensor Bank 2 Sensor 2 circuit poor electrical connection
Heated Oxygen Sensor Bank 2 Sensor 2 circuit fuse
Faulty Engine Control Module (ECM)

How to Fix the DTC P0057 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

The code means that there is a problem with the heater element circuit of the heated oxygen sensor. The control module monitors how long it takes the sensor to warm up and start sending an adequate signal. The code is set when the sensor is taking too long to warm up. Water getting inside the heated oxygen sensor connector can cause the heated oxygen sensor fuse to blow. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors. If the fuse and connector are OK, replacing the O2 Sensor usually takes care of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0057 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 P0057 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P0057 in a 2014 GMC Sierra?

The common symptoms of code P0057 include poor engine performance, decreased fuel efficiency, rough idling, and the illumination of the Check Engine Light.

2. What does the HO2S Heater Control Circuit Low Voltage Bank 2 Sensor 2 mean in the context of a 2014 GMC Sierra?

The code P0057 indicates that there is a low voltage condition in the heater control circuit of the oxygen sensor (O2) located in bank 2, sensor 2 of the exhaust system.

3. What are some possible causes of OBDII code P0057 in a 2014 GMC Sierra?

Possible causes of code P0057 in a 2014 GMC Sierra include a faulty oxygen sensor, damaged wiring or connectors in the sensor circuit, a blown fuse, or a problem with the engine control module (ECM).

4. How serious is OBDII code P0057 in a 2014 GMC Sierra?

While code P0057 may not cause immediate drivability issues, it can lead to long-term engine damage if left unaddressed. It is recommended to diagnose and repair the issue promptly to prevent further complications.

5. Can I drive my 2014 GMC Sierra with OBDII code P0057?

It is generally safe to drive your vehicle with code P0057, but it is advisable to address the underlying issue as soon as possible to prevent potential damage to the engine and emission system.

6. How can I diagnose and repair OBDII code P0057 in a 2014 GMC Sierra?

Diagnosing and repairing code P0057 involves testing the oxygen sensor, checking the wiring and connectors for damage, inspecting the fuse related to the sensor, and ensuring proper functionality of the ECM.

7. Is it possible to reset the Check Engine Light triggered by OBDII code P0057 in a 2014 GMC Sierra?

Resetting the Check Engine Light after addressing the underlying issue causing code P0057 is possible by using an OBDII scanner to clear the trouble code stored in the ECM.

8. What are the repair tips for fixing OBDII code P0057 in a 2014 GMC Sierra?

Repair tips for code P0057 include inspecting and repairing damaged wiring or connectors, replacing the faulty oxygen sensor if necessary, checking and replacing the related fuse, and ensuring proper ECM operation.

9. How much does it cost to fix OBDII code P0057 in a 2014 GMC Sierra?

The cost of repairing code P0057 can vary depending on the specific cause of the issue. Costs may include labor charges for diagnosis and repair, the price of replacement parts like the oxygen sensor, and any additional fees for related services.

10. Can code P0057 in a 2014 GMC Sierra be prevented in the future?

To prevent code P0057 from reoccurring in the future, perform regular vehicle maintenance, inspect the oxygen sensors periodically, address any wiring or connector issues promptly, and follow recommended service schedules for your GMC Sierra.