2004 Chrysler Pacifica. Automatic Temperature Control (ATC). Front blower motor won't work as of a week ago. Rear seems to work just fine. Swapped out the front fan relay with a spare, still doesn't work. Considering replacing the blower motor resistor, but not sure if this is the problem. Any suggestions?
+12 years later late summer of 2022 in 112 heat in Las vegas--My 2006 Pacifica - Has No blower operations--it is Blowing 40 Amp Fuses-I Tested & Found 3ohms of resistance (2.6 ohms to be exact) off of my blower motor power leads, tested this across the external connections of the Motor (green & Black) using a volt meter in resistance mode-
The resistance of a new motor is .04 ohm, as a comparison... this fact warranted the motors removal and replacement
Upon pulling the old motor out found the spindle to not be spinning freely or was frozen, hence the additional load variance.
I will take this old motor apart to see if the fusing of winding exists, in all probability-
So I Replaced The Motor and Resistor pak for good measure since both were the original equipment from 2006.
All works quite well now.
I hope this helps others out with similar HVAC blower non-op issues, I believe this scenario should be the same for any make model vehicle......
VMancini
Usally when a blower motor resistor goes bad the fan still runs on high. The resistor lowers the voltage going to the fan to make it run slower. The high setting usually goes straight thru. Resistors are usually easy to get to, under good on the firewall or under dash passenger side. Cost about $24 at parts store. Replace with new if that doesn't work return it.
SOURCE: 2004 chrysler pacifica, front blower not working,
replace restor open glove box uplug 4 wire plug and two wire plug put 12 volts two wire plug to mke sure fan works if it does replace restor
SOURCE: 2002 CHRYSLER T&C FRONT BLOWER NOT WORKING ON ANY SETTING
I had the same thing happen today except rear control works period (no conditions). I am going to test the leads to the front blower first while on. If voltage is there, then I will check the motor brushes - could be a cheap easy fix (~$6 + time). Alternatively you could replace the motor ($50+ plus time). If no voltage there then it is probably electronics.
It could be a resistor(s) but I believe it is unlikely that *all* the resistors would go at the same time.
SOURCE: 2005 Town Country front blower motor inop fuse/relay ok
Break Down And Replace The Blower Motor
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIR-BAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN AN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY OR DEATH OR DEATH.
NOTE: The blower motor is located on the passenger side of the vehicle under the instrument panel. The blower motor can be removed from the vehicle without having to remove the HVAC housing.
INSTALLATION
SOURCE: 2005 Chrysler T&C Front Blower Inop
is there 12 volts to switch to resister to fan? if so reground your fan
SOURCE: 2002 Chrysler Town and Country,
Either the switch is broke or the blower motor is. My guess would be the blower motor. You will have to check the plug at the blower motor for power with an ohm meter. And if it does move the switch to see if it put's out more amps. If it does it's the blower motor. If it doesn't it's the switch.
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