Home >> Scion >> 2008 >> xD Standard >> Repair and Diagnosis >> Engine Performance >> 2ZR-FE Engine Control System >> SFI System >> DTC P0031 Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1); DTC P0032 Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1) >> Component Operating Range