AutoCodes – Toyota – P0037 2015 Toyota RAV4

P0037 2015 Toyota RAV4 Code - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 2

Quick Answer

The sensing portion of the heated oxygen sensor has a zirconia element which is used to detect the oxygen concentration in the exhaust gas. Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2, Heated Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted, Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection. 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 2015 Toyota RAV4 indicates Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 2.
Common causes
Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2, Heated Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted, Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 4,339
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 22, 2022
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P0037 2015 Toyota RAV4 Description

The sensing portion of the heated oxygen sensor has a zirconia element which is used to detect the oxygen concentration in the exhaust gas. If the zirconia element is at the appropriate temperature, and the difference between the oxygen concentrations surrounding the inside and outside surfaces of the sensor is large, the zirconia element generates voltage signals. In order to increase the oxygen concentration detecting capacity of the zirconia element, the Engine Control Module (ECM) supplements the heat from the exhaust with heat from a heating element inside the sensor.
The ECM monitors the current applied to the heated oxygen sensor heater to check the heater for malfunctions.
If the heater current is outside the normal range, the signal transmitted by the heated oxygen sensor becomes inaccurate. When the current in the heated oxygen sensor heater is outside the normal operating range, the ECM interprets this as a malfunction in the sensor heater and stores a Diagnostic Trouble Code (DTC).
OBDII Code P0037 2015 Toyota RAV4 - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 2 - AutoCodes.com
P0037 2015 Toyota RAV4 Code - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 2

What are the Possible Causes of the DTC P0037 2015 Toyota RAV4?

  • Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2
  • Heated Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted
  • Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0037 2015 Toyota RAV4?

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 P0037 2015 Toyota RAV4 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 2015 Toyota RAV4 code?

Need more information on how to fix the P0037 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0037 2015 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0037 2015 Toyota RAV4 Code

1. What is an OBDII code P0037 in a 2015 Toyota RAV4?

- OBDII code P0037 in a 2015 Toyota RAV4 is related to the Oxygen Sensor Heater Control Circuit Low on Bank 1 Sensor 2.

2. What are the common symptoms of OBDII code P0037 in a 2015 Toyota RAV4?

- Common symptoms of P0037 may include poor fuel economy, rough idling, stalling, and an illuminated check engine light.

3. What causes the OBDII code P0037 in a 2015 Toyota RAV4?

- The P0037 code is usually triggered by a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or issues with the sensor's heater circuit.

4. How do I diagnose the OBDII code P0037 in my 2015 Toyota RAV4?

- Diagnosing P0037 involves using an OBDII scanner to read the code, checking the oxygen sensor's wiring and connectors for damage, and testing the sensor's heater circuit.

5. Can I continue driving my 2015 Toyota RAV4 with an OBDII code P0037?

- It is not recommended to drive your vehicle with a P0037 code as it can lead to decreased fuel efficiency and potential damage to the catalytic converter.

6. How can I repair the OBDII code P0037 in my 2015 Toyota RAV4?

- Repairing P0037 may involve replacing the Bank 1 Sensor 2 oxygen sensor, repairing damaged wiring or connectors, and ensuring the sensor's heater circuit is functioning properly.

7. Is it possible to reset the OBDII code P0037 in a 2015 Toyota RAV4 without fixing the issue?

- While you can clear the code with an OBDII scanner, the underlying issue causing P0037 in your Toyota RAV4 needs to be addressed to prevent further problems.

8. How much does it cost to fix the OBDII code P0037 in a 2015 Toyota RAV4?

- The cost to fix P0037 can vary depending on the cause of the issue, but it typically involves the cost of a new oxygen sensor, potential wiring repairs, and labor fees.

9. Can a DIY enthusiast repair the OBDII code P0037 in a 2015 Toyota RAV4?

- Depending on your skill level, you may be able to replace the Bank 1 Sensor 2 oxygen sensor yourself, but diagnosing and repairing wiring issues may require professional help.

10. Are there any preventive measures to avoid the OBDII code P0037 in my 2015 Toyota RAV4?

- Regularly maintaining your vehicle, ensuring proper fuel quality, and promptly addressing any check engine light warnings can help prevent issues that may trigger the P0037 code.

Discuss the causes and fixes for P0037 2015 Toyota RAV4 OBDII Code

Code P0037 2015 Toyota RAV4 comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play