blower motor not working?

This is typical when the TIPM goes out which is common here is how you can replace it which is easy because it self initializes. Check out the diagrams (Below). Please let us know what happens.

That's what the problem was in my Caravan :0)

[quote:eb577a73b6="BMRFIXIT"]suspect BCM or ignition switch[/quote:eb577a73b6]

I too vote Body computer. It's amazing how the engineers have made simple, reliable systems into ridiculously complicated nightmares by adding an unnecessary computer to everything. Chrysler had extremely little computer trouble in the 1990s, but they've learned how to make lots of money on replacement computers from GM.

This is why I still drive an '88 Caravan. Power windows, power locks, power mirrors, power seat, rear AC and heat, delayed wipers, . . . and no computers!

caradiodoc

the heater does nothing i replaced the heater control unit and the resistor the resistor was burnt and melted due water

Did you check applicable fuses? Fuse 10--40 amp in the diagram. That fuse goes hot when the relay is energized. Also, take wiring connector loose from blower motor, use voltmeter between the two terminals at wiring connector, everything turn on, does it show good voltage? This guide can help us fix the problem.

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Please run down this guide and report back.

i will check didn't know their was one there. ty

Hope you got it going your way?

My van's heater is giving me a hard time! I have replaced the auto temp control module and the blower fan but it keeps on quiting on me in the coldest of weather. but every time it stops working,i give it a ground boost and it starts over again. what could the problem be........i just cant stand dealing with this in 30 below.
any input will be appreciated

What quits, the module or the fan? What does "starts over again" mean? The problem occurs again or something starts working properly again? What are you grounding? Before you holler back, check for loose fuses in the Integrated Power Module, (fuse box / computer) under the hood when the problem is acting up.

caradiodoc

The fan is the one that quits........as soon as i connect a tester from the black wire of the blower fan to ground (car body), the fan starts working normally again. I have checked for loose fuses and connectors but all seems fine. Also noticed today that the fan speed fluctuates when i apply brakes to slow down. Thanks for the assistance

Ahh, for the good old days when cars were built with common sense. There are four computer modules involved in running the fan motor. By grounding the black wire you bypassed part of the front blower module. I can't tell you where it is but the two fan wires plug into it with a two-wire connector. Before you replace it, check for continuity to ground on its ground wire. That is the black / orange wire in the other three-pin connector.

caradiodoc

I understand the module you are talking about is the one behind the glove box just by the fan motor. I had replaced this particular module when i changed the blower fan as mentioned in my earlier post. Anyway i will check for continuity as you suggested and will get beck to you with my findings asap. Thanks

Hold on. You said you replaced the auto temp control module. That is the control assembly on the dash. That one has an output wire that goes to the fan module to tell the module how fast to run the fan motor. I would suspect the controller as the most likely cause of the dead fan.

caradiodoc

I think i may have used a differnet name for a part. The module behind the glovebox is what i replaced and that is what i reffered to as the automatic temp control module.
So are you suggesting, the **** used to control the speed of the fan in the centre of the dash (below audio system) is what the problem could be?

That module you replaced gets a coded signal from the main controller. The controller is what the heater and AC controls are part of. Up to at least 1999, the controller was built onto the back of the faceplate around the radio. I think it was still like that for 2001 but I was gone from the dealership by that time. That plate is held on with four screws.

caradiodoc

At first the front heater switch would only work on one speed. I was told to replace the blower motor resistor and that would take care of the problem. Unfortunately, this no longer works at all. Could it be the blower that finally went bad?
Thanks!

Have to locate the blower motor and disconnect electric connector
using a test light or volts meter
check for power and ground on both wires
if both yes remove and replace blower motor
if no ground remove and replace speed control resister
if no power check fuses relay and wiring
let me know

Got it. So u think the controller on the dash is the problem? Now would that be the speed control **** or the temp regulation buttons? Also i did check for continuity as u had suggested and it seems to be perfect. Could a weak blower fan be the cause?

Both controls are built into the computer module.

You know the fan motor is good because it ran when you grounded it.

caradiodoc

So whats your opinion? Change the computer module behind the glovebox?

No. The HVAC computer is the one with the heater controls. It should be behind the plate that goes around the radio

caradiodoc

The blower motor on my 2001 dodge grand caravan quit working and i tried replacing it but am having a heck of a time trying to get to the last bolt in the back (5th bolt)
Anyone with ideas on how to get to it because its cold outside and having to commute long distances without a heater is just brutal. Thanks

try using a ujoint and a 1/4" drive if you have one.

i do have a 1/4" drive but just cant get to it. i even tried reaching it through the top. i removed the speaker cover and the speaker but all my efforts have proved futile

2000 Dodge Caravan

heater problems. blower fan is not working.

You need to start at the motor. Check to see if it is getting power. If it is, the motor is bad.

Does it work on any of the speeds?

Let me know.

Joe

My blower fan stopped working and I wanted to know how best to diagnose the problem or should I replace all the components?

dont replace anything till you diag the issue, then replace the failed part.

check for voltage to the heater blower motor.

Roy

Heater problem
2000 Dodge Caravan Front Wheel Drive Automatic 187000 miles

Van has just stopped blowing air from front vents no matter the setting, yet the rear air motor is blowing air just fine, but not hot nor cold just circulating air from the best that I can tell. What is the problem and about what cost to repair. Thank you.

Is the air coming from the defroster / heater area?

No sir, no air, or even sounds of the blower are emitted from the front console area, including the dashboard defrost vents. It is as if blower if there is such a thing is gone. The back vents blow air but not heated or cooled air, seems to just circulate from the interior but apparently has nothing to do with the dash unit.

There is a seperate blower motor for the front. It is under the dash on the passanger side. You need to check to make sure there is power to it. Let me know what you find.

Joe

2002 Dodge Caravan, 65000 miles

My radio, heater blower, and wiper stop every few minutes for about 10 seconds, then restart. I looked at relays by am not sure which one it would be that controlls these 3 devices. Does anyone know for sure? Could be something else?

sounds like a BCM or body control module. whats strange is the radio, but i have seen stranger. like wipers going a light speed and power windows slamming up and down like the car was possessed.
call a parts store such as autozone and ask, it has worked for me many times. good luck.

I have a dodge grand caravan '01 65,000 ish miles v6. My air conditioner isn't blowing in the front, back works fine. checked fuses they are fine. Car was in an accident 4 years ago, the engine was pushed back, but was repaired and since then things are going wrong. Auto doors don't work from the inside but works from the key, not sure if any of that is relevent but thought it may help? I just wrote all of this but pushed a button and all was gone, don't know if it got sent and if it did sorry for the repeat. Anyway I have checked the heat too nothing is coming out of the front. No defrost either. Help please its really hot!!! :( I don't have a great amount of funds right now :oops: and hope it is an easy fix. I did get a Chilton repair book from the library so I can do a self fix yada yada.
Thank you in advance for your help

first find the blower for the front. With the fan turned on use a test light to see if power is gwetting to the motor in all positions on the fan speed control on dash, if power and no fan then the fan motor is bad. If no power, PM me and we will go through the steps to find the problem