P0037 2008 Nissan Maxima 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 2008 Nissan Maxima 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 2008 Nissan Maxima 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 2008 Nissan Maxima?
- 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 2008 Nissan Maxima?
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 2008 Nissan Maxima 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.
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Frequently Asked Questions about P0037 2008 Nissan Maxima Code
1. What does OBDII code P0037 on a 2008 Nissan Maxima indicate?
- This code, HO2S12 Heater Control Circuit Low, points to an issue with the oxygen sensor (Bank 1 Sensor 2) heater circuit.
2. What are the common symptoms of P0037 on a 2008 Nissan Maxima?
- Common symptoms include decreased fuel efficiency, rough idling, and potential stalling of the vehicle.
3. What are the possible causes of P0037 on a 2008 Nissan Maxima?
- The causes may include a faulty oxygen sensor, damaged wiring or connectors in the heater circuit, or a blown fuse related to the sensor heater.
4. How can I diagnose the P0037 code on my 2008 Nissan Maxima?
- Diagnosing this code typically involves checking the oxygen sensor's heater circuit for continuity, inspecting wiring and connectors for damage, and testing the fuse related to the sensor heater.
5. Can I still drive my 2008 Nissan Maxima with the P0037 code?
- It is not advisable to continue driving with the P0037 code present, as it can lead to decreased engine performance and potentially cause further damage over time.
6. How can I repair the P0037 code on my 2008 Nissan Maxima?
- Repairing this code often involves replacing the faulty oxygen sensor, repairing any damaged wiring or connectors, and ensuring the fuse related to the sensor heater is intact.
7. Is it possible to reset the P0037 code on a 2008 Nissan Maxima without fixing the issue?
- While you can clear the code with an OBDII scanner, it is important to address the underlying problem causing the code to prevent further issues.
8. How much does it typically cost to repair the P0037 code on a 2008 Nissan Maxima?
- The cost of repairing this code can vary depending on the cause and whether you perform the repair yourself or take it to a mechanic. Costs may range from $100 to $300 or more.
9. Can a DIY enthusiast fix the P0037 code on a 2008 Nissan Maxima?
- Yes, if you have some experience with automotive repairs and access to the necessary tools, you may be able to address the P0037 code yourself by following a repair guide or tutorial.
10. How often does the P0037 code occur in a 2008 Nissan Maxima?
- The occurrence of the P0037 code can vary depending on factors such as vehicle maintenance, driving conditions, and the age of the oxygen sensor.
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