AutoCodes – Chevrolet – P0050 2017 Chevrolet Silverado

P0050 2017 Chevrolet Silverado Code - HO2S Heater Control Circuit Bank 2 Sensor 1

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 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open shorted, Heated Oxygen Sensor Bank 2 Sensor 1 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: P0050 2017 Chevrolet Silverado indicates HO2S Heater Control Circuit Bank 2 Sensor 1.
Common causes: Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open shorted, Heated Oxygen Sensor Bank 2 Sensor 1 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 642

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 P0050 2017 Chevrolet Silverado 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 an open circuit 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 P0050 2017 Chevrolet Silverado - HO2S Heater Control Circuit Bank 2 Sensor 1 - AutoCodes.com — P0050 2017 Chevrolet Silverado Code - HO2S Heater Control Circuit Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0050 2017 Chevrolet Silverado?

Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1
Heated Oxygen Sensor Bank 2 Sensor 1 harness is open shorted
Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection
Heated Oxygen Sensor Bank 2 Sensor 1 fuse
Faulty Engine Control Module (ECM)

How to Fix the DTC P0050 2017 Chevrolet Silverado?

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 P0050 2017 Chevrolet Silverado 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 P0050 2017 Chevrolet Silverado Code

1. What does OBDII code P0050 on a 2017 Chevrolet Silverado indicate?

- OBDII code P0050 indicates a problem with the HO2S (Heated Oxygen Sensor) Heater Control Circuit for Bank 2 Sensor 1.

2. What are the common symptoms of OBDII code P0050 in a 2017 Chevrolet Silverado?

- Common symptoms of P0050 may include poor fuel economy, rough idling, engine misfires, and an illuminated check engine light.

3. What are the possible causes of OBDII code P0050 on a 2017 Chevrolet Silverado?

- The possible causes of P0050 include a faulty oxygen sensor, damaged wiring or connectors, or a malfunctioning ECM (Engine Control Module).

4. How can I diagnose the HO2S Heater Control Circuit Bank 2 Sensor 1 issue in my 2017 Chevrolet Silverado?

- To diagnose P0050, you can use an OBDII scanner to read the code, visually inspect the sensor and its wiring, and perform a resistance test on the sensor heater circuit.

5. Can I drive my 2017 Chevrolet Silverado with OBDII code P0050?

- It is not recommended to drive your vehicle with a P0050 code as it can lead to poor engine performance and potential damage to other components.

6. What is the typical repair for OBDII code P0050 on a 2017 Chevrolet Silverado?

- The typical repair for P0050 involves replacing the Bank 2 Sensor 1 oxygen sensor and repairing any damaged wiring or connectors in the heater circuit.

7. How much does it cost to fix OBDII code P0050 in a 2017 Chevrolet Silverado?

- The cost to fix P0050 can vary depending on the labor rates and parts costs, but typically, replacing the oxygen sensor and repairing the circuit may range from $200 to $500.

8. Are there any DIY tips for addressing OBDII code P0050 in a 2017 Chevrolet Silverado?

- DIY tips for P0050 include checking the sensor connections, inspecting the wiring for damage, and ensuring the sensor is receiving proper voltage.

9. Can a faulty oxygen sensor cause OBDII code P0050 in a 2017 Chevrolet Silverado?

- Yes, a faulty oxygen sensor can trigger P0050 as it may fail to heat up properly, leading to inaccurate readings and triggering the code.

10. How long does it take to repair OBDII code P0050 on a 2017 Chevrolet Silverado?

- The repair time for P0050 can vary depending on the extent of the issue and the technician's expertise, but it typically takes around 1-2 hours to complete.