Conditions for Setting the DTC

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

P0133 or P0153

The ECM detects that the HO2S 1 rich-to-lean or lean-to-rich average response time is greater than a calibrated value.
The DTCs set within 100 seconds when the above condition is met.

P013A or P013C

The ECM detects that the HO2S 2 has a slow response when the accumulated mass air flow monitored during rich-to-lean transitions between 450-150 mV is greater than a calibrated value.

P013B or P013D

The ECM detects that the HO2S 2 has a slow response when the accumulated mass air flow monitored during lean-to-rich transitions between 350-650 mV is greater than a calibrated value.

P013E or P014A

The ECM detects that the HO2S 2 sensor has an initial delayed rich-to-lean response when the voltage has not decreased below 450 mV within a calibrated value of accumulated air flow.

P013F or P014B

The ECM detects that the HO2S 2 sensor has an initial delayed lean-to-rich response when the voltage has not increased above 350 mV within a calibrated value of accumulated air flow.

P1133 or P1153

The ECM detects that the HO2S 1 rich-to-lean counts, or the lean-to-rich counts are less than a calibrated value.
The DTCs set within 100 seconds when the above condition is met.