P0037 2018 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 2018 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.
Code P0037 2018 Toyota RAV4 Description
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).
What are the Possible Causes of the DTC P0037 2018 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 2018 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 2018 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 2018 Toyota RAV4 code?
Need more information on how to fix the P0037 2018 Toyota RAV4 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0037 2018 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0037 2018 Toyota RAV4 Code
1. What does OBDII code P0037 on a 2018 Toyota RAV4 mean?
- This code indicates a problem with the Oxygen Sensor Heater Control Circuit being low on Bank 1 Sensor 2.
2. What are the common symptoms of the P0037 code in a 2018 Toyota RAV4?
- Common symptoms include poor fuel economy, rough idling, and potential engine misfires.
3. What are the possible causes of the Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 2 code in a 2018 Toyota RAV4?
- Potential causes include a faulty oxygen sensor, damaged wiring or connectors, or a failed heater circuit.
4. How can I diagnose the P0037 code in a 2018 Toyota RAV4?
- Diagnosing the issue involves checking the oxygen sensor's wiring, connectors, and the sensor itself for any signs of damage or malfunction.
5. Can I continue driving my 2018 Toyota RAV4 with the P0037 code?
- It is generally not recommended to drive with this code active, as it can lead to decreased fuel efficiency and potential engine performance issues.
6. How do I repair the Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 2 code in my 2018 Toyota RAV4?
- Repair typically involves replacing the faulty oxygen sensor or repairing any damaged wiring or connectors in the heater circuit.
7. Will resetting the OBDII code P0037 in my 2018 Toyota RAV4 make it go away?
- Resetting the code may temporarily clear the warning light, but if the underlying issue is not fixed, the code is likely to return.
8. Can a DIY enthusiast fix the P0037 code on a 2018 Toyota RAV4?
- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair this code themselves.
9. How much does it cost to repair the Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 2 code in a 2018 Toyota RAV4?
- Repair costs can vary depending on the extent of the issue, but replacing the oxygen sensor or fixing wiring typically ranges from $200 to $500.
10. Is the P0037 code a common issue in 2018 Toyota RAV4 vehicles?
- While not extremely common, issues with the oxygen sensor heater circuit can occur in 2018 Toyota RAV4 models and should be addressed promptly to avoid further damage.
Discuss the causes and fixes for P0037 2018 Toyota RAV4 OBDII Code
Code P0037 2018 Toyota RAV4 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.
