P0037 Mitsubishi Code - Cylinder 1-4 Heated Oxygen Sensor Rear 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 Mitsubishi indicates Cylinder 1-4 Heated Oxygen Sensor Rear 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 Mitsubishi 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 Mitsubishi?
- 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 Mitsubishi?
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 Mitsubishi 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 Mitsubishi code?
Need more information on how to fix the P0037 Mitsubishi code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0037 Mitsubishi code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0037 Mitsubishi Code
1. What are the common symptoms of OBDII code P0037 in a Mitsubishi related to the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low?
The common symptoms include poor fuel economy, a decrease in engine performance, rough idling, and potential stalling of the vehicle.
2. What are the possible causes of OBDII code P0037 in a Mitsubishi indicating an issue with the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low?
Possible causes include a faulty oxygen sensor, damaged wiring or connectors in the sensor circuit, a blown fuse, or a problem with the engine control module (ECM).
3. How can I diagnose the OBDII code P0037 in my Mitsubishi related to the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low?
You can diagnose the issue by using an OBDII scanner to retrieve the specific fault code, inspecting the oxygen sensor and its wiring for damage, checking the fuse related to the sensor heater circuit, and testing the sensor's resistance.
4. What are some tips for repairing OBDII code P0037 in a Mitsubishi due to the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low?
Some repair tips include replacing the faulty oxygen sensor, repairing or replacing damaged wiring or connectors in the sensor circuit, checking and replacing any blown fuses, and resetting the ECM after making repairs.
5. Can I continue driving my Mitsubishi with OBDII code P0037 indicating an issue with the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low?
It is not recommended to drive your vehicle with this issue as it can lead to decreased fuel efficiency, engine performance issues, and potential damage to the catalytic converter over time.
6. How much does it typically cost to repair OBDII code P0037 in a Mitsubishi related to the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low?
The repair cost can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor, excluding diagnostic fees.
7. Is it possible to reset the OBDII code P0037 in a Mitsubishi without fixing the underlying issue with the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low?
While you can clear the fault code using an OBDII scanner, it is crucial to address the underlying problem to prevent further issues and ensure proper vehicle operation.
8. How long does it take to repair OBDII code P0037 in a Mitsubishi caused by the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low?
The repair time can vary depending on the complexity of the issue and the expertise of the technician, but it typically takes around 1 to 2 hours to diagnose and fix the problem.
9. Are there any recalls or technical service bulletins related to OBDII code P0037 in Mitsubishi vehicles concerning the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low?
It is recommended to check with Mitsubishi dealerships or online resources for any relevant recalls or technical service bulletins related to this specific OBDII code to stay informed about potential manufacturer-acknowledged issues.
10. Can a DIY enthusiast with automotive knowledge repair OBDII code P0037 in a Mitsubishi linked to the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low?
If you have the necessary tools, skills, and access to replacement parts, you may be able to repair this issue yourself. However, it is essential to follow proper diagnostic procedures and safety precautions to avoid causing further damage to your vehicle.
2. What are the possible causes of the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low code in a Mitsubishi?
- The code P0037 can be triggered by issues such as a faulty oxygen sensor, damaged wiring, or a malfunctioning heater circuit.
3. How can I diagnose the source of the P0037 code in my Mitsubishi related to the Cylinder 1-4 Heated Oxygen Sensor?
- You can use a multimeter to test the oxygen sensor's resistance and inspect the wiring for any signs of damage or corrosion to pinpoint the issue.
4. Can I continue driving my Mitsubishi with the P0037 code related to the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low?
- It is not recommended to drive your vehicle with this code as it can lead to long-term damage to the engine and emissions system.
5. What are some repair tips for fixing the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low code in a Mitsubishi?
- Repair tips may include replacing the faulty oxygen sensor, repairing damaged wiring, or checking the heater circuit for proper function.
6. Is it possible to reset the OBDII code P0037 in a Mitsubishi related to the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low without fixing the underlying issue?
- While you can clear the code with an OBDII scanner, it is important to address the root cause to prevent the code from reappearing.
7. How much does it typically cost to repair the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low issue in a Mitsubishi?
- The cost of repair can vary depending on the extent of the damage, but it may range from $100 to $300 for parts and labor.
8. Can a DIY enthusiast fix the P0037 code related to the Cylinder 1-4 Heated Oxygen Sensor in a Mitsubishi?
- Depending on your skill level and access to tools, you may be able to replace the oxygen sensor or repair wiring yourself, but it is recommended to consult a professional if unsure.
9. How long does it usually take to repair the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low issue in a Mitsubishi?
- The repair time can vary based on the specific problem, but a skilled mechanic can typically address the issue within a few hours.
10. Will fixing the Cylinder 1-4 Heated Oxygen Sensor Rear Heater Control Circuit Low code improve my Mitsubishi's overall performance and fuel efficiency?
- Yes, resolving this issue can lead to improved engine performance, better fuel economy, and reduced emissions output in your Mitsubishi.
Discuss the causes and fixes for P0037 Mitsubishi OBDII Code
-
Since the code P0037 is associated with the downstream sensor (Bank 1 sensor 2) in Mitsubishi outlander, can one of the symptoms be fuel inefficiency?
-
No, rear (downstrem) oxygen sensors are used to monitor the catalytic converter efficiency and have no affect on fuel consumption.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
