Question about 1999 Chrysler 300M

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Location of the blower motr control module

Heater motor runs on high, continuously, on the automatic mode of the climate control system. Cannot find the location of th blower motor control module.

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  • Anonymous Mar 19, 2009

    Where is the control module??

  • Anonymous Apr 20, 2009

    my 99 chrysler 300m inside blower run all tlme.I have to remove the 30 amp fuse to shut him off.

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  • Chrysler Master
  • 71,586 Answers

Replace the blower motor speed control module, that is the only cause of this problem that I know of, and u are about the 20 post for this issue that I have read, it has fixed the other ones..

Posted on Feb 26, 2009

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Posted on Jan 02, 2017

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Pinpoint Test Q: The Blower Motor Does Not Operate Correctly - EATC
Normal Operation Under normal operation, the blower motor control module receives a 1-2 volt signal from the EATC module through circuit CH218 (GN/VT) to determine the desired blower motor speed. The EATC module receives a feedback voltage from the blower motor control module through circuit VH219 (GY) to determine actual blower motor speed. When the highest blower motor setting is selected, the EATC module sends 12 volts to the blower control module through circuit CH217 (BN).
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The first thing I would do is access the blower motor. With key on and/or the engine running wiggle the connector at the blower motor. It you get the same symptom than replace the blower motor. I run into quite a few of these with this symptom.

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Location of the blower motor control module


The module is located in the ducting for the heater and is accessed from the passenger area of the front seat. I think it is just under the dash but you may have to remove the glove box. it is a rectangular item held in with four screws. and should have two connectors going to it. You have to be sure to get the right replacement if you r replacing it.
thanks.

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