Yes, it can.
both electric and mechanical.
Trouble code P1494 means: Leak detection pump pressure switch or mechanical fault
The 2007 Jeep Grand-Cherokee is a gas-powered vehicle.
The 2010 Jeep Grand-Cherokee is a gas-powered vehicle.
The 2008 Jeep Grand-Cherokee is a gas-powered vehicle.
The 2003 Jeep Grand-Cherokee is a gas-powered vehicle.
The 2006 Jeep Grand-Cherokee is a gas-powered vehicle.
The 2005 Jeep Grand-Cherokee is a gas-powered vehicle.
The 2001 Jeep Grand-Cherokee is a gas-powered vehicle.
The 2004 Jeep Grand-Cherokee is a gas-powered vehicle.
The 2002 Jeep Grand-Cherokee is a gas-powered vehicle.
The 2009 Jeep Grand-Cherokee is a gas-powered vehicle.