Conditions for Setting the DTC

P0131 

The engine control module detects that the heated oxygen sensor pump current or reference voltage circuit is shorted to ground for greater than 4 s.

P0132 

The engine control module detects that the heated oxygen sensor pump current, reference voltage, or reference ground circuit is shorted to voltage for greater than 4 s.

P015A or P015B

• The engine control module detects that the heated oxygen sensor rich-to-lean or lean-to-rich average response time is greater than a calibrated value.
• The DTCs set within 60 s when the above condition is met.

P223C 

The engine control module detects an open circuit fault to the pump current, reference voltage, reference ground, or trim circuit or a trim circuit short to ground, by detecting that the pump current is less than 0.10 mA or greater than 4.18 mA for greater than 7 s..

P223E 

The engine control module detects that the heated oxygen sensor reference cell is colder than 700°C (1292°F) or warmer than 1000°C (1832°F) for greater than 4 s.