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P0037

Both codes refer to the oxygen sensor that is to the rear of the catalytic converter. With regard to Code P0037 (https://www.yourmechanic.com/article/p0037-obd-ii-trouble-code-ho2s-heater-control-circuit-low-bank-1-sensor-2-by-john-nelson), if the rear oxygen sensor is brand new, you should check the heater circuit ground (the oxygen sensor...

P0037 is an oxygen sensor code referring to bank 1 sensor 2. This is the right hand side of the engine and the second sensor on that side. The code may be caused by the catalyst on that side or...

Hello. If your oxygen sensor (https://www.yourmechanic.com/services/oxygen-sensor-replacement) is reading low then it may be possible that it needs to be replaced. If there was a blown fuse (https://www.yourmechanic.com/article/signs-your-car-has-a-blown-fuse) or disconnected wire then there would be no signal at all. If the...