P0037 Saturn -

Question

Where's the location of HO2S12 on a 2001 Saturn SL? Bank 1 sensor 2?

Answer 1

P0037 H02S heater control circuit low voltage sensor 2

Sensor 2 is the catalytic monitor sensor, the location is at the catalytic convertor, efore you decide to replace this 02 sensor check the fuse , the heater control is fuse protected in the under hood fuse box (use the cover as a map) is  EMISS this is a 10 amp fuse, make sure this fuse has not opened,

Comments

Thank You, I'll check the fuse...