AutoCodes – KIA – P0037 2007 KIA Sorento

P0037 2007 KIA Sorento Code - HO2S 12 Hater Circuit Low Input

Quick Answer

Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness is open or shorted. 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 2007 KIA Sorento indicates HO2S 12 Hater Circuit Low Input.
Common causes
Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness is open or shorted.
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 7,972
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 23, 2024
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Code P0037 2007 KIA Sorento Description

Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).
In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
OBDII Code P0037 2007 KIA Sorento - HO2S 12 Hater Circuit Low Input - AutoCodes.com
P0037 2007 KIA Sorento Code - HO2S 12 Hater Circuit Low Input

What are the Possible Causes of the DTC P0037 2007 KIA Sorento?

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

How to Fix the DTC P0037 2007 KIA Sorento?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0037 2007 KIA Sorento 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 2007 KIA Sorento 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 2007 KIA Sorento Code

1. What are the common symptoms of OBDII code P0037 in a 2007 KIA Sorento?

- Common symptoms include poor fuel efficiency, rough idling, and the illumination of the Check Engine Light.

2. What does the OBDII code P0037 "HO2S Heater Circuit Low Input" mean in a 2007 KIA Sorento?

- This code indicates that the heater circuit in the Heated Oxygen Sensor (HO2S) 1, Bank 2 is experiencing low input voltage.

3. What are the possible causes of the P0037 trouble code in a 2007 KIA Sorento?

- Potential causes include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or a problem with the vehicle's PCM (Powertrain Control Module).

4. How can I diagnose the OBDII code P0037 in my 2007 KIA Sorento?

- Diagnostic steps may involve visually inspecting the oxygen sensor and its wiring, testing the sensor's heater circuit, checking fuses, and using a scan tool to monitor sensor data.

5. Is it safe to continue driving with the P0037 trouble code in a 2007 KIA Sorento?

- It is generally not recommended to drive with this code illuminated, as it can lead to decreased fuel efficiency and potential engine damage over time.

6. Can I repair the HO2S 12 heater circuit low input issue in my 2007 KIA Sorento myself?

- Depending on your expertise, you may be able to replace the faulty oxygen sensor or repair damaged wiring yourself. However, professional diagnosis and repair are recommended for accurate resolution.

7. How much does it typically cost to fix the P0037 OBDII code in a 2007 KIA Sorento?

- The cost of repair can vary depending on the root cause of the issue. Replacing an oxygen sensor or repairing wiring may range from $100 to $300, while addressing a faulty PCM could be more expensive.

8. Will resetting the Check Engine Light resolve the P0037 code in a 2007 KIA Sorento?

- Simply clearing the code without addressing the underlying issue will not fix the problem. It is crucial to diagnose and repair the root cause before resetting the Check Engine Light.

9. How long does it take to fix the HO2S 12 heater circuit low input problem in a 2007 KIA Sorento?

- The repair time can vary depending on the exact cause of the issue and the availability of parts. Typically, it can take anywhere from 1 to 3 hours for a professional technician to diagnose and address the problem.

10. What should I do if the P0037 code keeps reappearing in my 2007 KIA Sorento after repair?

- If the code persists after repair, it is advisable to recheck the oxygen sensor, wiring, and related components for any overlooked issues. Consulting a professional mechanic or dealership may be necessary for further diagnosis.

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