Not sure if the blower motor is out or if the switch is bad. Switch is a modular unit with all A/C, heater & defroster controls. Curious to know if it's possible to jumper two wires to send current directly to the fan motor to see if it's good or bad, and if so which two color wires do I need to jumper? Any help appreciated.
Here is a general video on checking your blower motor. Sometimes the brushes will get stuck and it you tap on the motor and if it starts then you know the motor will need replaced. There is a fuse, a relay, and a resistor grid in all applications. Normally, an auto shop or a dealer can give you a concise schematic for your specific vehicle. Good luck on that.
https://www.youtube.com/watch?v=2vmfxYg8LoY&t=94s
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: Blower Motor Resistor - 2001 Dodge Grand Caravan
I had the same thing happpen with mine. The unit is located behind the glove box and is just left of the fan held in place with two screws. I bought a new resistor from radio shack and installed it in the unit.
SOURCE: How do I replace cabin air filter on 1994 dodge
On the passenger side somewhere below the glove compartment, you should see a bracket that you will need to slide out towards the seat and then pull it off. The filter is located behind this.
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: 2004 Grand Caravan Front blower will not come on.
Check owners manual for location of heater blower motor front,check with a test light,if it's good locate blower motor under glove box and test the two wires for power when switch is turned on,if power is present motor needs changed.if no power check blower motor resister.
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