P0037 2008 Nissan Pathfinder 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 Pathfinder 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 Pathfinder 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 Pathfinder?
- 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 Pathfinder?
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 Pathfinder 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 2008 Nissan Pathfinder code?
Need more information on how to fix the P0037 2008 Nissan Pathfinder code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0037 2008 Nissan Pathfinder code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0037 2008 Nissan Pathfinder Code
1. What does OBDII code P0037 for a 2008 Nissan Pathfinder mean?
This code indicates a problem with the HO2S12 (Heated Oxygen Sensor Bank 1 Sensor 2) heater control circuit, specifically that the circuit is operating at a low voltage level.
2. What are the common symptoms of OBDII code P0037 in a 2008 Nissan Pathfinder?
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 OBDII code P0037 in a 2008 Nissan Pathfinder?
Potential causes include a faulty HO2S12 sensor, damaged wiring or connectors in the heater circuit, a blown fuse, or a problem with the vehicle's engine control module (ECM).
4. How can I diagnose the root cause of OBDII code P0037 in my 2008 Nissan Pathfinder?
To diagnose the issue, you can use a multimeter to test the heater circuit for continuity and proper voltage. You may also need to inspect the sensor and wiring for any visible damage.
5. What are some tips for repairing OBDII code P0037 in a 2008 Nissan Pathfinder?
First, check the fuse related to the HO2S12 heater circuit and replace if necessary. Next, inspect the sensor and wiring for any signs of damage or corrosion. Finally, consider replacing the HO2S12 sensor if other components check out.
6. Can I continue driving my 2008 Nissan Pathfinder with OBDII code P0037 present?
It is not recommended to drive the vehicle for an extended period with this code as it can lead to decreased fuel efficiency and potentially cause damage to the engine over time.
7. How much does it typically cost to repair OBDII code P0037 in a 2008 Nissan Pathfinder?
The cost of repair can vary depending on the root cause of the issue. Replacing a faulty sensor may cost between $100-$200, while addressing wiring or ECM problems could increase the total repair cost.
8. Will resetting the Check Engine light resolve OBDII code P0037 in my 2008 Nissan Pathfinder?
Resetting the light may temporarily turn it off, but if the underlying issue causing the code is not fixed, the light is likely to come back on after driving a certain distance.
9. How urgent is it to address OBDII code P0037 in a 2008 Nissan Pathfinder?
While the vehicle may still be driveable with this code present, it's important to address the issue promptly to prevent potential long-term damage to the engine and ensure optimal vehicle performance.
10. Can I repair OBDII code P0037 in my 2008 Nissan Pathfinder myself, or should I seek professional help?
If you have experience with automotive repairs and access to the necessary tools, you may be able to address this code yourself. However, if you are unsure or uncomfortable with the diagnostic and repair process, it's recommended to seek assistance from a qualified mechanic or technician.
Discuss the causes and fixes for P0037 2008 Nissan Pathfinder OBDII Code
Code P0037 2008 Nissan Pathfinder 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.
