P0038 2005 Infiniti G35 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 2005 Infiniti G35 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 2005 Infiniti G35 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 2005 Infiniti G35?
- 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 2005 Infiniti G35?
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 2005 Infiniti G35 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 2005 Infiniti G35 Code
1. What does OBDII code P0038 on a 2005 Infiniti G35 mean?
The code P0038 indicates a problem with the HO2S12 (Heated Oxygen Sensor Bank 1 Sensor 2) heater control circuit being too high.
2. What are some common symptoms of OBDII code P0038 on a 2005 Infiniti G35?
Common symptoms of code P0038 may include poor fuel efficiency, rough idling, engine hesitation, and the illumination of the Check Engine Light.
3. What are the potential causes of OBDII code P0038 on a 2005 Infiniti G35?
Possible causes of code P0038 include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM).
4. How can I diagnose the issue related to OBDII code P0038 on my 2005 Infiniti G35?
Diagnosing code P0038 may involve using an OBDII scanner to retrieve the specific fault code, inspecting the oxygen sensor and its wiring, checking the fuse related to the sensor, and testing the ECM.
5. How can I repair OBDII code P0038 on a 2005 Infiniti G35?
Repairing code P0038 may involve replacing the HO2S12 sensor, repairing or replacing damaged wiring or connectors, resetting the ECM, and ensuring that the fuse related to the sensor is in good condition.
6. Can driving with OBDII code P0038 on a 2005 Infiniti G35 cause further damage to the vehicle?
Continuing to drive with code P0038 may lead to decreased fuel efficiency, increased emissions, and potential damage to the catalytic converter over time. It is recommended to address the issue promptly.
7. How much does it typically cost to repair OBDII code P0038 on a 2005 Infiniti G35?
The cost of repairing code P0038 can vary depending on the specific cause of the issue, but it may range from around $100 to $300 for parts and labor.
8. Can I reset the Check Engine Light after repairing OBDII code P0038 on a 2005 Infiniti G35?
Once the underlying issue causing code P0038 has been addressed, the Check Engine Light can be reset using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.
9. Are there any preventive measures to avoid OBDII code P0038 on a 2005 Infiniti G35 in the future?
To prevent code P0038 from occurring in the future, it is important to perform regular vehicle maintenance, such as checking and replacing oxygen sensors as recommended by the manufacturer.
10. How long does it take to repair OBDII code P0038 on a 2005 Infiniti G35?
The repair time for code P0038 can vary depending on the extent of the issue and the availability of parts. In general, the repair can be completed within a few hours by a qualified mechanic.
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