Circuit/System Verification

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

Ignition OFF, open the hood to disable the Auto-Stop function. Refer to Hybrid Modes of Operation Description .
Ignition ON, verify the scan tool hood position parameter displays Open.
- If the hood position does not display Open, refer to Diagnostic Trouble Code (DTC) List - Vehicle for DTC P254F.

NOTE:

For P0443, the audible clicking intensity will vary depending on mounting locations and interference with the fuel injectors clicking. You may also feel a change in the frequency of clicking.

P0443

Ignition ON, engine OFF, you should hear a clicking sound when the EVAP purge solenoid valve is commanded to 50% with a scan tool.
Verify the control circuit parameter status while commanding the EVAP purge solenoid from 0 to 50% and back to 0% with a scan tool.
- EVAP Purge Solenoid Valve Control Circuit High Voltage Test Status
- EVAP Purge Solenoid Valve Control Circuit Low Voltage Test Status
- EVAP Purge Solenoid Valve Control Circuit Open Test Status
  Each parameter should display OK or Not Run.
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.

P0449

Ignition ON, engine OFF, command the EVAP vent solenoid ON (Not Venting) and OFF (Venting) with a scan tool.
Listen for a click when the valve operates. Verify that both the ON (Not Venting) and the OFF (Venting) states are commanded while watching their parameter status.
- EVAP Vent Solenoid Valve Control Circuit High Voltage Test Status
- EVAP Vent Solenoid Valve Control Circuit Low Voltage Test Status
- EVAP Vent Solenoid Valve Control Circuit Open Test Status
  Each parameter should display OK or Not Run.
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.