Circuit/System Verification
- Ignition ON, observe the scan tool DTC information. Verify DTCs P0131, P0132, or P2626 are not also set.
- If any of the above DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for further diagnosis.
- Engine idling at operating temperature. Observe the scan tool Loop Status Sen 1 parameter. The parameter should display Closed Loop.
- 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 are captured in the Freeze Frame/Failure Records Data List.