P0037 2009 Nissan Altima Sedan 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 2009 Nissan Altima Sedan 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 2009 Nissan Altima Sedan 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 2009 Nissan Altima Sedan?
- 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 2009 Nissan Altima Sedan?
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 2009 Nissan Altima Sedan 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 2009 Nissan Altima Sedan code?
Need more information on how to fix the P0037 2009 Nissan Altima Sedan code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0037 2009 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0037 2009 Nissan Altima Sedan Code
1. What does the OBDII code P0037 for a 2009 Nissan Altima Sedan mean?
The code P0037 indicates a HO2S12 Heater Control Circuit Low error, specifically related to the oxygen sensor located in bank 1 sensor 2.
2. What are the common symptoms of a P0037 code in a 2009 Nissan Altima Sedan?
Common symptoms include poor fuel economy, rough idling, engine misfires, and the illumination of the check engine light on the dashboard.
3. What are the possible causes of a HO2S12 Heater Control Circuit Low error in a 2009 Nissan Altima Sedan?
Potential causes may include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or an issue with the engine control module (ECM).
4. How can I diagnose a P0037 code in my 2009 Nissan Altima Sedan?
To diagnose the issue, you can use an OBDII scanner to read the code, visually inspect the oxygen sensor and its connections, check the corresponding fuse, and perform a voltage test on the sensor.
5. How can I repair a HO2S12 Heater Control Circuit Low error in my 2009 Nissan Altima Sedan?
Repair options may include replacing the oxygen sensor, repairing any damaged wiring or connectors, checking and replacing the fuse if necessary, and resetting the error code with the OBDII scanner.
6. Can I continue driving my 2009 Nissan Altima Sedan with a P0037 code?
While the vehicle may still be operable with this code, it is recommended to address the issue promptly to prevent potential damage to the engine and ensure optimal fuel efficiency.
7. How much does it typically cost to repair a HO2S12 Heater Control Circuit Low error in a 2009 Nissan Altima Sedan?
The cost of repairs can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.
8. Is the P0037 code a common problem in 2009 Nissan Altima Sedans?
The P0037 code related to the HO2S12 Heater Control Circuit Low is not uncommon in vehicles with oxygen sensor issues, including the 2009 Nissan Altima Sedan.
9. Can a DIY enthusiast fix a P0037 code in a 2009 Nissan Altima Sedan?
Depending on your skill level and access to tools, some DIY enthusiasts may be able to address the P0037 code by replacing the oxygen sensor or checking and repairing wiring issues.
10. How often should I check the oxygen sensors in my 2009 Nissan Altima Sedan to prevent a P0037 code?
It is recommended to inspect and potentially replace the oxygen sensors in your vehicle every 60,000 to 90,000 miles to prevent issues such as the HO2S12 Heater Control Circuit Low error.
Discuss the causes and fixes for P0037 2009 Nissan Altima Sedan OBDII Code
Code P0037 2009 Nissan Altima Sedan comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
