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BLOWER MOTOR HELP


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cadillac_02
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Apr 20, 2012, 6:34 PM

Post #1 of 10 (1011 views)
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BLOWER MOTOR HELP Sign In

hi i am currently replacing the blower motor in my car i have a 2002 cadillac deville dhs 4.6. I have removed the old motor and just picked up the brand new one today i plug it in and still no a/c the motor will not kick in i have checked all the fuses and they are all good. My question is what can be causing the blower motor not to turn on


Hammer Time
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Hammer Time profile image

Apr 20, 2012, 6:40 PM

Post #2 of 10 (996 views)
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Re: BLOWER MOTOR HELP [In reply to] Sign In

There are 2nother components that play a part in that circuit. That is the Blower Motor control processor and the Instrument Panel Integration Module and either could be a problem but more likely the Blower module.

Make sure you have checked the 40amp fuse marked "HVAC BLO" in the rear fuse box




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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Apr 20, 2012, 6:41 PM)


cadillac_02
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Apr 20, 2012, 6:45 PM

Post #3 of 10 (985 views)
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Re: BLOWER MOTOR HELP [In reply to] Sign In

Were would those 2 be located at and how would i be able to check them. I am still reciving voltage to the harness on the purple wire.


Hammer Time
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Apr 20, 2012, 6:50 PM

Post #4 of 10 (978 views)
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Re: BLOWER MOTOR HELP [In reply to] Sign In

That pretty much means the fuse is good.







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



cadillac_02
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Apr 20, 2012, 6:54 PM

Post #5 of 10 (972 views)
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yes the fuse is sorry about that .how can i check if its good or bad?? (blower module) and is it possible if it is bad could i still be reciving voltage


Hammer Time
Ultimate Carjunky / Moderator
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Apr 20, 2012, 7:17 PM

Post #6 of 10 (959 views)
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All you can check is that it is receiving power and ground. There is no way you can test the input signal without some expensive equipment so trying a new one is about the only way you can find out.




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



cadillac_02
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Apr 20, 2012, 7:50 PM

Post #7 of 10 (946 views)
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Re: BLOWER MOTOR HELP [In reply to] Sign In

Were can i purchase one online. Also i tested the old blower motor with a dmm and as far as i can tell it was shorted the ohms would just jump up and down. on the new one it does not it stays at a number. could the motor possibly short out the blower module??


cadillac_02
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Apr 20, 2012, 7:50 PM

Post #8 of 10 (945 views)
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Is there any way i can bypass the module and connect it direct


Hammer Time
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Apr 20, 2012, 7:53 PM

Post #9 of 10 (941 views)
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You can't test an electric motor with an ohmmeter. You need to just apply power and ground to it. As far as finding your parts, you can use Google just as easily as I can.




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



cadillac_02
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Apr 20, 2012, 9:07 PM

Post #10 of 10 (933 views)
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Why are the ac controls getting hot while off??????




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