Conditions for Setting the DTC

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P0133

The ECM detects that the HO2S 1 rich-to-lean or lean-to-rich average response time is more than a calibrated value.
DTC P0133 sets within 100 seconds when the above condition is met.

P0134

The ECM detects that the HO2S 1 parameter is between 350-550 mV for 100 seconds.
The Throttle Position (TP) Indicated Angle parameter changes more than 5 percent, 1 time.
DTC P0134 sets within 100 seconds when the above conditions are met.

P0140

The ECM detects that the HO2S 1 parameter is between 410-490 mV.
The TP Indicated Angle parameter changes more than 5 percent 6 times.
DTC P0140 sets within 100 seconds when the above conditions are met.

P1133

The ECM detects that the HO2S 1 rich-to-lean counts, or the lean-to-rich counts are less than a calibrated value.
DTC P1133 sets within 100 seconds when the above condition is met.

P2270

The ECM detects that the HO2S 2 voltage oscillations are slower than a calibrated value.
DTC P2270 sets within 4 seconds when the above condition is met continuously, or within 50 seconds when the above condition is met cumulatively.

P2271

The ECM detects that the HO2S 2 voltage oscillations are faster than a calibrated value.
DTC P2271 sets within 4 seconds when the above condition is met continuously, or within 50 seconds when the above condition is met cumulatively.

P2A01

The ECM detects that the HO2S 1 did not transition below 200 mV and above 730 mV during the passive test.
One of the following tests fail:
- The Lean Intrusive Test detects that the sensor is more than 200 mV for 12 seconds.
- The Rich Intrusive Test detects that the sensor is less than 730 mV for 12 seconds.
DTC P2A01 sets within 5 minutes when the above conditions are met.