Circuit/System Verification

Ignition ON, observe the DTC information with a scan tool. Verify that DTC P0137, P0138, P0140, P0157, P0158, or P0160 is not set.
- If any of the listed DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for further diagnosis.
Operate the engine above 1, 200 RPM for 30 seconds, observe appropriate scan tool HO2S 2 voltage parameter. The parameter should fluctuate greater and less than the range of 401-519 mV.
Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.