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BLOWER MOTOR HELP


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cadillac_02
User

Apr 20, 2012, 3:34 PM

Post #1 of 10 (2307 views)
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
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 20, 2012, 3:40 PM

Post #2 of 10 (2292 views)
Re: BLOWER MOTOR HELP 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, 3:41 PM)


cadillac_02
User

Apr 20, 2012, 3:45 PM

Post #3 of 10 (2281 views)
Re: BLOWER MOTOR HELP 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
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 20, 2012, 3:50 PM

Post #4 of 10 (2274 views)
Re: BLOWER MOTOR HELP 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
User

Apr 20, 2012, 3:54 PM

Post #5 of 10 (2268 views)
Re: BLOWER MOTOR HELP Sign In

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
Hammer Time profile image

Apr 20, 2012, 4:17 PM

Post #6 of 10 (2255 views)
Re: BLOWER MOTOR HELP Sign In

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
User

Apr 20, 2012, 4:50 PM

Post #7 of 10 (2242 views)
Re: BLOWER MOTOR HELP 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
User

Apr 20, 2012, 4:50 PM

Post #8 of 10 (2241 views)
Re: BLOWER MOTOR HELP Sign In

Is there any way i can bypass the module and connect it direct


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Apr 20, 2012, 4:53 PM

Post #9 of 10 (2237 views)
Re: BLOWER MOTOR HELP Sign In

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
User

Apr 20, 2012, 6:07 PM

Post #10 of 10 (2229 views)
Re: BLOWER MOTOR HELP Sign In

Why are the ac controls getting hot while off??????






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