P0037 2007 Nissan Versa Code - HO2S12 Heater Control Circuit Low
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 Nissan Versa indicates HO2S12 Heater Control Circuit Low.
- 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.
Code P0037 2007 Nissan Versa Description
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.
What are the Possible Causes of the DTC P0037 2007 Nissan Versa?
- 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 Nissan Versa?
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 Nissan Versa code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80β$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0037 2007 Nissan Versa Code
1. What does the OBDII code P0037 for a 2007 Nissan Versa mean?
The code P0037 on a 2007 Nissan Versa indicates a potential issue with the HO2S12 heater control circuit, specifically that it is registering a low voltage condition.
2. What are the common symptoms of OBDII code P0037 in a 2007 Nissan Versa?
Common symptoms of code P0037 in a 2007 Nissan Versa may include poor fuel economy, rough idling, engine misfires, and the illumination of the Check Engine light on the dashboard.
3. What can cause the OBDII code P0037 to trigger in a 2007 Nissan Versa?
The most common causes of code P0037 in a 2007 Nissan Versa are a faulty HO2S12 sensor, damaged wiring or connectors in the heater circuit, or a blown fuse related to the sensor.
4. How can I diagnose the OBDII code P0037 on my 2007 Nissan Versa?
Diagnosing code P0037 on a 2007 Nissan Versa typically involves using a scan tool to retrieve the code, checking the wiring and connectors related to the HO2S12 sensor, and testing the sensor itself for proper operation.
5. Can I continue driving my 2007 Nissan Versa with an active P0037 trouble code?
While the vehicle may still be operable with code P0037 present, it is recommended to address the issue promptly to prevent potential damage to the engine and emissions system.
6. How can I repair the OBDII code P0037 on a 2007 Nissan Versa?
Repairing code P0037 on a 2007 Nissan Versa often involves replacing the HO2S12 sensor, repairing any damaged wiring or connectors, and ensuring the heater circuit is functioning properly.
7. Are there any DIY tips for fixing the OBDII code P0037 on a 2007 Nissan Versa?
If you have experience with automotive repairs, you may be able to replace the HO2S12 sensor yourself after confirming the diagnosis and ensuring you have the necessary tools and parts.
8. How much does it cost to fix the OBDII code P0037 on a 2007 Nissan Versa at a repair shop?
The cost of repairing code P0037 on a 2007 Nissan Versa at a repair shop can vary depending on the labor rates, parts needed, and any additional services required. It's best to get a few quotes from different shops.
9. Can a faulty O2 sensor cause the OBDII code P0037 on a 2007 Nissan Versa?
Yes, a faulty HO2S12 sensor can trigger code P0037 on a 2007 Nissan Versa, as the sensor is responsible for monitoring oxygen levels in the exhaust and helping regulate fuel mixture.
10. Is it safe to reset the Check Engine light after fixing the OBDII code P0037 on a 2007 Nissan Versa?
Once the underlying issue causing code P0037 has been repaired, it is safe to reset the Check Engine light using a scan tool to clear the code and ensure proper operation of the vehicle.
Discuss the causes and fixes for P0037 2007 Nissan Versa OBDII Code
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I was given my Versa by a family member. The car looks brand new and runs great. Since getting the car I have had a lot of work done. Basically most things are new including both O2sensors. The engine light keeps coming on and we are getting code P0037. Where is the fuse for the heated oxygen sensor located. The car sat for 2 years before I got it. Just trying to get a sticker.
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Fuse #54 in the Intelligent Power Distribution Module (IPDM) (also known as fuse box). The IPDM is next to the battery.

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The fuse box nest to my battery doesn't look like this. It is much smaller and doesn't nearly as many fuses.
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I got the images from the Factory Service Manual. You sure you have a 2007 Nissan Versa?
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That is the location of the IPDM for both Versas. Unfortunately that is the only information I got.
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