Conditions for Setting the DTC
P0131
The engine control module (ECM) detects that the heated oxygen sensor (HO2S) voltage is less than 20 mV for greater than 38 s.
P0137
The engine control module (ECM) detects that the heated oxygen sensor (HO2S) is shorted to ground for greater than 38 s.
P0132 or P0138
The ECM detects that the heated oxygen sensor (HO2S) voltage is greater than 1 050 mV for greater than 10 s.
P0134 or P0140
The ECM detects that the heated oxygen sensor (HO2S) voltage is greater than 1 700 mV for greater than 10 s.