P0452-NVLD Pressure Switch Stuck Closed
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
When Monitored: Immediately after the engine has been started.
Set Condition: The PCM activates the NLVD Solenoid. If PCM does not see NVLD switch open and error is detected. One Trip Fault.