P0135 is tha only code shows H02S B1 S1 only, can this be the pcm being that i replaced the sensor?

Question

Only throwing a p0135. fuse 41 good. New sensor in. Possible pcm?

Answer 1

Hi there,

This could be an issue with the PCM, however the wiring should be checked as well. Since it's the heater circuit it's possible you have a short to power causing to high a voltage going back to the pcm and it's setting this code.