Codes P0420 and P0037.

Question

IWhere is the fuse to the heated oxygen sensor.

Answer 1

Hi there

The fuse is in the fuse block inside the car. In most cases, you are going to need a new catalytic converter. This may also resolve the O2 sensor code as well.

P0037 NISSAN - HO2S12 Heater Control Circuit Low

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