Circuit/System Verification
- Engine idling, observe the HO2S 2 voltage parameter. The reading should fluctuate above and below the range of 350-550 mV.
- If the vehicle passes the Circuit/System Verification test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records List. DTC P2A01 should not fail.