Conditions for Setting the DTC

P0133

• The ECM detects that the HO2S 1 sensor 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 sensor is between 350-550 mV for 100 seconds.
• The throttle position (TP) indicated angle 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 sensor is between 410-490 mV.
• The TP indicated angle 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 sensor 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 sensor 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 10 minutes when the above conditions are met.