P0038 2009 Nissan Pathfinder Code - HO2S12 Heater Control Circuit High
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
- P0038 2009 Nissan Pathfinder indicates HO2S12 Heater Control Circuit High.
- 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 P0038 2009 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 P0038 2009 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 P0038 2009 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0038 2009 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.
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Frequently Asked Questions about P0038 2009 Nissan Pathfinder Code
1. What does OBDII code P0038 for a 2009 Nissan Pathfinder mean?
- This code indicates a problem with the HO2S12 (Heated Oxygen Sensor 1 Bank 1) heater control circuit, showing high voltage readings.
2. What are the common symptoms of OBDII code P0038 in a 2009 Nissan Pathfinder?
- Common symptoms include decreased fuel efficiency, rough idling, engine stalling, and the illumination of the Check Engine Light.
3. What are the possible causes of OBDII code P0038 in a 2009 Nissan Pathfinder?
- The code may be triggered by a faulty HO2S12 sensor, damaged wiring or connectors in the sensor circuit, a blown fuse, or an issue with the engine control module.
4. How can I diagnose OBDII code P0038 in a 2009 Nissan Pathfinder?
- Diagnosing this code involves using a scan tool to retrieve the code, checking the sensor's resistance, inspecting the sensor wiring and connectors for damage, and testing the heater circuit.
5. What are the repair options for OBDII code P0038 in a 2009 Nissan Pathfinder?
- Repair options include replacing the HO2S12 sensor, repairing damaged wiring or connectors, replacing blown fuses, or addressing any issues with the engine control module.
6. Can I drive my 2009 Nissan Pathfinder with OBDII code P0038?
- It is not recommended to drive the vehicle with this code present, as it can lead to poor engine performance and potential damage if left unresolved.
7. How much does it typically cost to fix OBDII code P0038 in a 2009 Nissan Pathfinder?
- The cost of repairs can vary depending on the specific issue causing the code, but it may range from $100 to $300 for parts and labor.
8. How long does it take to repair OBDII code P0038 in a 2009 Nissan Pathfinder?
- The repair time can vary based on the exact cause of the code, but it typically takes 1-2 hours for a professional mechanic to diagnose and fix the issue.
9. Can I reset OBDII code P0038 in my 2009 Nissan Pathfinder using a scan tool?
- Yes, you can use a scan tool to clear the code after the underlying issue has been addressed and repaired.
10. How often does OBDII code P0038 occur in 2009 Nissan Pathfinders?
- While this code is not extremely common, it can occur due to various factors such as sensor wear, electrical problems, or engine control module issues.
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