AutoCodesFord – P0037 2019 Ford F150

P0037 2019 Ford F150 Code - HO2S Heater Control Circuit Low Bank 1 Sensor 2

Quick Answer

The HO2S detects the presence of oxygen in the exhaust and produces a variable voltage according to the amount of oxygen detected. Common causes include Faulty Heated Oxygen Sensor Bank 1 Sensor 2 (HO2S12), Heated Oxygen Sensor Bank 1 Sensor 2 circuit open shorted to ground, Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0037 2019 Ford F150 indicates HO2S Heater Control Circuit Low Bank 1 Sensor 2.
Common causes
Common causes include Faulty Heated Oxygen Sensor Bank 1 Sensor 2 (HO2S12), Heated Oxygen Sensor Bank 1 Sensor 2 circuit open shorted to ground, Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 285
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 01, 2023
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Code P0037 2019 Ford F150 Description

The HO2S detects the presence of oxygen in the exhaust and produces a variable voltage according to the amount of oxygen detected. A high concentration of oxygen (lean air to fuel ratio) in the exhaust produces a voltage signal of less than 0.4 volt. A low concentration of oxygen (rich air to fuel ratio) produces a voltage signal greater than 0.6 volt. The HO2S provides feedback to the Powertrain Control Module (PCM) indicating air to fuel ratio in order to achieve a near stoichiometric air to fuel ratio of 14.7 to 1 (9 to 1 E100) during closed loop engine operation.
When the oxygen sensor is cold, disconnected, or on initial start-up, the voltage may read between 1.5 to 1.7 volts. The oxygen sensor voltage will decrease to the normal operating range of 0.0 to 1.1 volts during warm, stabilized engine running conditions.
The HO2S heater is embedded with a sensing element. The heating element heats the sensor to a temperature of 800°C (1,472°F). At approximately 300°C (572°F) the engine enters closed loop operation. The heater allows the engine to enter closed loop operation sooner.
The PCM controls the Heated Oxygen Sensor Bank 1, Sensor 2 (HO2S12) heater ON and OFF duty cycle to maintain a calibrated temperature. This Diagnostic Trouble Code (DTC) is set when the sensor does not warm up to the required temperature in a calibrated amount of time. This DTC is also set when the PCM is not able to maintain the required temperature after the sensor is warmed.
OBDII Code P0037 2019 Ford F150 - HO2S Heater Control Circuit Low Bank 1 Sensor 2 - AutoCodes.com
P0037 2019 Ford F150 Code - HO2S Heater Control Circuit Low Bank 1 Sensor 2

What are the Possible Causes of the DTC P0037 2019 Ford F150?

  • Faulty Heated Oxygen Sensor Bank 1 Sensor 2 (HO2S12)
  • Heated Oxygen Sensor Bank 1 Sensor 2 circuit open shorted to ground
  • Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection

How to Fix the DTC P0037 2019 Ford F150?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0037 2019 Ford F150 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 2019 Ford F150 code?

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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 P0037 2019 Ford F150 Code

1. What are the common symptoms of OBDII code P0037 in a 2019 Ford F150?

The common symptoms of code P0037 include poor fuel economy, rough idling, engine misfires, and the illumination of the Check Engine Light.

2. What does the HO2S Heater Control Circuit Low Bank 1 Sensor 2 mean in relation to OBDII code P0037?

The code P0037 indicates an issue with the heated oxygen sensor (HO2S) located on Bank 1, Sensor 2 of the exhaust system in a 2019 Ford F150.

3. What are the potential causes of OBDII code P0037 in a 2019 Ford F150?

Common causes of code P0037 include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM).

4. How serious is OBDII code P0037 in a 2019 Ford F150?

While the vehicle may still be operable with code P0037, it is important to address the issue promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.

5. Can I continue driving my 2019 Ford F150 with OBDII code P0037?

It is not recommended to drive the vehicle extensively with code P0037 as it can lead to decreased fuel efficiency and potential long-term damage to the catalytic converter.

6. How can I diagnose and repair OBDII code P0037 on a 2019 Ford F150?

Diagnosing and repairing code P0037 typically involves testing the oxygen sensor, checking the wiring and connectors for damage, inspecting the fuse, and verifying the ECM's functionality.

7. Is it possible to reset OBDII code P0037 in a 2019 Ford F150 without fixing the underlying issue?

While you can clear the trouble code with an OBDII scanner, the Check Engine Light may reappear if the root cause of code P0037 is not addressed.

8. Are there any DIY repair tips for addressing OBDII code P0037 in a 2019 Ford F150?

DIY repair tips include checking for loose or damaged wiring, ensuring proper connection of the oxygen sensor, and inspecting the fuse related to the HO2S heater circuit.

9. How much does it typically cost to fix OBDII code P0037 in a 2019 Ford F150?

The cost of repairing code P0037 can vary depending on the exact cause of the issue, but it may range from $150 to $400 for parts and labor at a repair shop.

10. Can a faulty oxygen sensor trigger OBDII code P0037 in a 2019 Ford F150?

Yes, a faulty oxygen sensor on Bank 1, Sensor 2 can trigger code P0037, indicating a problem with the HO2S heater control circuit low.

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