DTC Parameters

DTC sets when HO2S bank 1, sensor 1 oxygen content value is too far out of range from HO2S bank 1, sensor 2 oxygen content value when any of the following conditions are met:

HO2S bank 1, sensor 1 lambda value is 0.99-1.01 and HO2S bank 1, sensor 2 voltage is more than 848 millivolts (rich) or less than 103 millivolts (lean); or HO2S bank 1, sensor 1 lambda is more than 1.2 (lean) and HO2S bank 1, sensor 2 voltage is more than 848 millivolts (rich); or HO2S bank 1, sensor 1 lambda value is less than 0.8 (rich) and HO2S bank 1, sensor 2 is less than 103 millivolts (lean).

All conditions must be met for more than 2-16 seconds, depending on driving state with no HO2S bank 1, sensor 1 heater or HO2S bank 1, sensor 2 DTCs set.