Circuit/System Verification

IMPORTANT: This DTC may set if the ignition is turned OFF and the engine is restarted within approximately 30 seconds during Phase 2 of the AIR diagnostic test.

If any Secondary Air Injection System Pressure Sensor Circuit DTCs are set, perform those diagnostics first.
Inspect the AIR hoses/pipes between the pump and the shut-off valve for leaks.
Engine running, enable the AIR pump and observe that the AIR Pressure Sensor parameter increases to approximately 15-20 kPa above barometric pressure (BARO).