I have a 2002 Dodge Grand caravan what are the two black boxes under the drivers side close to the motor

SOURCE: air conditioner blower motor resister on dodge grand caravan

in my 2004 grand caravan it's behind the glove box and left of the blower motor. disconnect the wires first then remove the 2 screws to pull out the resistor unit. First make sure you have removed the negative of your batterie. I had the same pm that prevented the blower motor to operate in any speed. I hope this will help

SOURCE: front blower motor on 2002 dodge grand caravan

it's the blower motor resistor , it's behind the glove compartment, just make sure you disconect the neg. for battery first, open the glove comp. and pull the rubber stops towars the center so you can let the glove comp. hang all the way to the floor , the resistor it's in front of you, disconect the two conectors there's one big with 6 0r 8 wires coming out and another with only two, take them out by pressing on the side of each one, remove it , put the new one on , conect the battery and your done. it's about $ 13.00 at o'riellys auto parts .

I hope this fix yor problem.

David M.

SOURCE: NEEED FUSE FUSE BOX LAYOUT FOR 2003 DODGE GRAND CARAVAN

You can get free owners manuals online at:

http://www.edmunds.com/ownership/howto/articles/120189/article.html

or just type "owners manuals" in your search.

Here is a post I found that worked for my 2005 caravan.

For a 2001 Dodge Caravan: The owner's manual is vague, only stating that all fuses are under the hood in the fuse box, no diagrams. Once you have removed the fusebox cover, the diagrams for what each fuse does is provided under the lid. UNCLEARLY marked is the radio fuse, a 20amp fuse located 2nd row from top to the right of the accessory relay. It is marked: RDO/IP IGN.

Jake

SOURCE: Heater blower motor replacement -1997 Dodge Grand Caravan

Remove the cover plate on the passenger side of the heater box, 3-4 screws.
Unplug the motor assembly, remove 3-4 more screws that hold the motor in place and pull it down from its position. Get an aftermarket motor and installed it in the original housing with the original squirrel cage.
Installation is the reverse of removal.

SOURCE: 2002 dodge grand caravan fuse box

The fuse box is located under the hood. There is component map printed on the inside of the cover. This tells you on your model where the fuse or relay is located