Blower motor not working

2007 DODGE CARAVAN
189,000 MILES • 3.3L • 4 CYL • 2WD • AUTOMATIC
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DAVID.LAUGHLIN
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The front A/C blower does not work. The back blower does work. The blower was working fine in the morning. There were no noises to indicate the blower was going bad. I have checked the fuses and relays under the hood, all are good. What else could it be?
Nov 3, 2020 at 9:08 AM (Merged)
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2CARPRO JACK
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May be a bad blower motor. You will need to use a test light and check for power at the blower motor when in ON position.If it has power the motor may be bad, if not it could be a bad fan speed resistor or switch
Nov 3, 2020 at 9:08 AM (Merged)
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PUFFNSTUFF
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Hi, when I turn on the wipers the radio shuts down. when I stop the wipers radio comes back on. Blower motor also not working..Help anyone. thanks!
Nov 3, 2020 at 9:08 AM (Merged)
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HMAC300
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check fuse and relay for blower motor under hood. then check ground on battery to body and for cleanliness on battery terminal ends.
Nov 3, 2020 at 9:08 AM (Merged)
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PUFFNSTUFF
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Thanks for helping.. Radio and wipers are now fixed, but blower motor still not working. I'm getting no voltage from live wire to blower motor resister with key on and switch set to high. Fuse is good and relay is good.. any advice would be much helpful.. Thanks!!
Nov 3, 2020 at 9:08 AM (Merged)
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STRAILER
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Hey PUFFNSTUFF,

Use a test light to see if the blower motor is getting power and a good ground, most likely the blower motor is bad, here is a guide that will help you.


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


Run some tests and get back to us so we can continue helping you.

Best, Ken


Nov 3, 2020 at 9:08 AM (Merged)
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PUFFNSTUFF
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Hi. Think it may be a fuse box issue.. No power to resistor.. Bypassed relay and everything works..thanks for helping!
Nov 3, 2020 at 9:08 AM (Merged)
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STRAILER
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That relay is controlled by the body module, here is a wiring diagram. It could need replacement. Test for trigger at the relay and go from there,

Here is a guide to test from

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit


Please let us know happens so it will help others.

Best, Ken
Nov 3, 2020 at 9:08 AM (Merged)