Conditions for Setting the DTC

• The ECM detects that the HO2S sensor 2 did not transition below 349 mV and above 710 mV during the passive test.
• One of the following tests fail:

  Lean Intrusive Test

  • The ECM detects that the HO2S sensor 2 is more than 349 mV for 25.4 seconds.
  • The HO2S sensor 1 is less than 300 mV.

    OR

Rich Intrusive Test

• The ECM detects that the HO2S sensor 2 is less than 710 mV for 25.4 seconds.
• The HO2S sensor 1 is more than 600 mV.