P0038 2012 Nissan Altima Sedan 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 2012 Nissan Altima Sedan 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 2012 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 P0038 2012 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 P0038 2012 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0038 2012 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 P0038 2012 Nissan Altima Sedan code?
Need more information on how to fix the P0038 2012 Nissan Altima Sedan code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0038 2012 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0038 2012 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0038 on a 2012 Nissan Altima Sedan?
The common symptoms of code P0038, HO2S12 Heater Control Circuit High, include reduced fuel efficiency, rough idling, and the illumination of the Check Engine Light.
2. What causes the HO2S12 Heater Control Circuit High code on a 2012 Nissan Altima Sedan?
The P0038 code is usually triggered by a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM).
3. How can I diagnose the HO2S12 Heater Control Circuit High issue on my 2012 Nissan Altima Sedan?
To diagnose the problem, you can use an OBDII scanner to retrieve the specific fault code, visually inspect the oxygen sensor and its wiring, and perform circuit tests to identify the exact cause.
4. Can I continue driving my 2012 Nissan Altima Sedan with OBDII code P0038 active?
It is not recommended to drive your vehicle with the P0038 code active, as it can lead to poor engine performance and potential damage to other components over time.
5. How do I repair the HO2S12 Heater Control Circuit High problem on my 2012 Nissan Altima Sedan?
Repairing the P0038 code may involve replacing the oxygen sensor, repairing damaged wiring or connectors, checking and replacing fuses if necessary, or addressing any ECM issues.
6. Can a DIY enthusiast fix the P0038 code on a 2012 Nissan Altima Sedan?
While some DIY enthusiasts may be able to address the P0038 code by replacing the oxygen sensor or checking wiring connections, it is recommended to consult a professional mechanic for accurate diagnosis and repair.
7. Will resetting the OBDII system clear the P0038 code on my 2012 Nissan Altima Sedan?
Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the P0038 code is not fixed, it is likely to reappear after driving the vehicle for some time.
8. How much does it typically cost to repair the HO2S12 Heater Control Circuit High issue on a 2012 Nissan Altima Sedan?
The cost of repairing the P0038 code can vary depending on the cause of the problem, but it may range from $100 to $300 for parts and labor, excluding diagnostic fees.
9. Are there any preventive measures to avoid the OBDII code P0038 on a 2012 Nissan Altima Sedan in the future?
Regular maintenance, such as checking and replacing oxygen sensors as recommended by the manufacturer, inspecting wiring for damage, and addressing any engine performance issues promptly, can help prevent the recurrence of the P0038 code.
Discuss the causes and fixes for P0038 2012 Nissan Altima Sedan OBDII Code
Code P0038 2012 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.
