Question

I got the code P0036 on my Toyota, is it a big problem or can I fix it myself?

Answer 1

P0036 TOYOTA - Oxygen Sensor Heater Control Circuit Bank 1 Sensor 2

It depends on what is the problem and the type of work you are able to do. The problem could be just a fuse or the rear O2 sensor.

Here is more information for the code and the possible causes:

https://www.autocodes.com/p0036_toyota.html