I'm going to send this as an answer in hopes that you may read it. I've been sending my replies as information requests so you would not be prompted to pay again. When you get an information request email you click the link to look at the information request I've sent so you can read it before responding back to me, otherwise you won't know what I'm asking you.
Here is my first reply to you tonight.
If you have a voltmeter set it to ohms. Unplug the resistor and check for continuity between every pin. If you find any that show an open circuit replace the resistor. A bad blower motor will often take out a resistor because it generates excess heat.
Here is your next reply.
I tested all the wires as you instructed. The four wires, 2 on top of each other had no power, the one bunched with them off to the right has power (its dark blue). The 2 wires off to the right of those the dark blue on top of the black ground, they both have power. So I replaced the blower motor as you instructed. But it still is not working!!
Here was my next reply.
The dark blue wire is the power coming into the resistor from the relay. It should have power. We have that. Next unplug the two wire connector from the resistor. The terminal that goes to the solid black wire from the connector should have 12v. This wire is not ground, this is 12v passing through the resistor as it comes from the relay. It goes in on the dark blue, right back out on the black.
If the black wire has power with the key on check for ground on the terminal that goes to the dark green wire in the two wire connector. Do this with the blower motor set on high. If there is no ground, check for ground on the dark blue/gray wire at the resistor. If it's ok there, replace the resistor.
Here was your next reply.
I spoke to you on 9/16/09 about my 2005 dodgegrand caravan. The front a/c fan not blowing. You instructed me to get a voltage meter and test the wires behind the glove box. You said if the dark green and black wires going to the fan motor had power I needed to replace the fan motor. They did have power so I replaced the fan motor, its still not working. When I tested the other 5 wires to the left of those 2 wires, only one of them worked and it was the dark blue one on the top row closest to the fan blower motor. So do I need to replace the resistor as well? Sorry I just started where we left off last week, I know I should have reminded you of what we were working on last time.
Here was my reply to that.
I remember you and your problem. I didn't tell you that the black wire should have ground, I told you the black should have power and the dark green wire should have ground. This was in the second sentence of the second paragraph of my first answer. If you had power on both wires the blower motor will never work, it needs power on one wire and ground on the other. If you saw power on both of these wires that means you were reading the 12 through the windings of the blower motor and back to the resistor. This tells me that you have no ground coming out of the resistor on the dark green wire, and the resistor is likely the problem.
Here was your next reply.
my 2005 Dodge Grand caravan front a/c fan not working, I replaced the fan motor blower. Did everything step by step as you instructed, but it is still not blowing. So front a/c fan not blowing, no cool air coming out. Back fan blowing and cooling just fine. I dont know what else to tell you.
Here was my last reply.
Are you reading my replies? I've sent you three replies and I'm not thinking you are reading them. I've sent instructions three times on what to do to test it from here. As I said in my first answer the first night we talked, you should have power on the black wire at the blower motor connector and ground on the dark green. If you don't have ground on the dark green it sounds like you need a resistor.