It is possible, but not likely for a transmission fluid leak from the speed sensors.
The 2001 Dodge Grand-Caravan has a 4-speed automatic.
The 2004 Dodge Grand-Caravan has a 4-speed automatic.
The 2005 Dodge Grand-Caravan has a 4-speed automatic.
The 2010 Dodge Grand-Caravan has a 4-speed automatic.
The 2006 Dodge Grand-Caravan has a 4-speed automatic.
The 2002 Dodge Grand-Caravan has a 4-speed automatic.
The 2007 Dodge Grand-Caravan has a 4-speed automatic.
The harness for the transmission speed sensors is on the transmission.
The 2009 Dodge Grand-Caravan has a 4-speed shiftable automatic.
The 2012 Dodge Grand-Caravan has a 6-speed shiftable automatic.
The 2013 Dodge Grand-Caravan has a 6-speed shiftable automatic.