AutoCodes – Chevrolet – P0037 2016 Chevrolet Silverado

P0037 2016 Chevrolet Silverado Code - HO2S Heater Control Circuit Low Voltage Bank 1 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 1 Sensor 2, Heated Oxygen Sensor Bank 1 Sensor 2 harness is open shorted to ground, Heated Oxygen Sensor Bank 1 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: P0037 2016 Chevrolet Silverado indicates HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 2.
Common causes: Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2, Heated Oxygen Sensor Bank 1 Sensor 2 harness is open shorted to ground, Heated Oxygen Sensor Bank 1 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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 324

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
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0037 2016 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 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 P0037 2016 Chevrolet Silverado - HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 2 - AutoCodes.com — P0037 2016 Chevrolet Silverado Code - HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0037 2016 Chevrolet Silverado?

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

How to Fix the DTC P0037 2016 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 P0037 2016 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.

Need more information about the P0037 2016 Chevrolet Silverado code?

Need more information on how to fix the P0037 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0037 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P0037 2016 Chevrolet Silverado Code

1. What does OBDII code P0037 on a 2016 Chevrolet Silverado indicate?

- OBDII code P0037 refers to the HO2S Heater Control Circuit Low Voltage for Bank 1 Sensor 2 on a 2016 Chevrolet Silverado.

2. What are common symptoms of OBDII code P0037 on a 2016 Chevrolet Silverado?

- Common symptoms of code P0037 include reduced fuel efficiency, rough idling, and the illumination of the check engine light.

3. What are the possible causes of OBDII code P0037 on a 2016 Chevrolet Silverado?

- The common causes of code P0037 include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module.

4. How serious is OBDII code P0037 on a 2016 Chevrolet Silverado?

- While the vehicle may still be driven with this code present, it is important to address it promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.

5. How can I diagnose OBDII code P0037 on a 2016 Chevrolet Silverado?

- To diagnose code P0037, a technician may use an OBDII scanner to retrieve the code, inspect the oxygen sensor and related wiring, and perform voltage tests to pinpoint the issue.

6. Can I repair OBDII code P0037 on a 2016 Chevrolet Silverado myself?

- Depending on your skill level and access to tools, you may be able to replace the faulty oxygen sensor or repair wiring yourself. However, it is recommended to consult a professional if unsure.

7. What is the typical cost to repair OBDII code P0037 on a 2016 Chevrolet Silverado?

- The cost to repair code P0037 can vary based on the underlying cause. Replacing an oxygen sensor may cost between $200 to $300, while addressing wiring issues or module problems could be more expensive.

8. Are there any maintenance tips to prevent OBDII code P0037 on a 2016 Chevrolet Silverado?

- Regularly servicing your vehicle, including checking and replacing oxygen sensors as recommended by the manufacturer, can help prevent issues that trigger code P0037.

9. Will resetting the check engine light resolve OBDII code P0037 on a 2016 Chevrolet Silverado?

- Resetting the check engine light may temporarily clear the code, but it will reappear if the underlying issue causing code P0037 is not addressed.

10. Can driving with OBDII code P0037 on a 2016 Chevrolet Silverado cause further damage?

- Continuing to drive with code P0037 unresolved can potentially lead to decreased fuel efficiency, engine performance issues, and damage to the catalytic converter over time.