Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.

Ignition - On / Vehicle - In Service Mode
Verify DTC P0449 is not set.
- If DTC P0449 is set
  Refer to : Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step : If DTC P0449 is not set
Ignition/Vehicle - Off
Remove the component : Fuel Tank Filler Cap or Install the special tool : GE-41415-60 Engine Induction System Leak Test Adapter/Capless Fuel Fill Adapter - Capless Type Fuel Fill
Verify the scan tool parameter : Fuel Tank Pressure Sensor = 1.3 to 1.7 V
- If not between 1.3 and 1.7 V
  Refer to : DTC P0451-P0454 .
- Go to next step : If between 1.3 and 1.7 V
Install the component : Fuel Tank Filler Cap or Remove the special tool : GE-41415-60 Engine Induction System Leak Test Adapter/Capless Fuel Fill Adapter - Capless Type Fuel Fill
Engine - Idling - At normal operating temperature
Perform the scan tool function : EVAP Purge/Seal EVAP Purge Solenoid Valve - 50% - Perform the action while monitoring the parameter : Fuel Tank Pressure Sensor
Verify the scan tool parameter : Fuel Tank Pressure Sensor = Less than 2.5 V
- If 2.5 V or greater
  Refer to : Circuit/System Testing
- Go to next step : If less than 2.5 V
Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
- If the DTC sets
  Refer to Circuit System Testing.
- Go to next step : If the DTC does not set
All OK.