Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

blower motor location?

Thread Tools
 
Search this Thread
 
Old 11-10-2012, 02:47 PM
  #1  
ledee416
Rennlist Member
Thread Starter
 
ledee416's Avatar
 
Join Date: Nov 2012
Location: Lake Park, Georgia
Posts: 445
Likes: 0
Received 4 Likes on 4 Posts
Default blower motor location?

probably right in front of my face, but cant find it. i jumped the relay, and found the connector for a switch. when I apply power the different connector pins, (there are 6 of them) I cant get the blower to turn on. both fuse and relay are working (or jumped)

this is the connector:

can anyone tell me which pins I need to jump to simulate the blower on postion?
Old 11-10-2012, 02:48 PM
  #2  
ledee416
Rennlist Member
Thread Starter
 
ledee416's Avatar
 
Join Date: Nov 2012
Location: Lake Park, Georgia
Posts: 445
Likes: 0
Received 4 Likes on 4 Posts
Default

so basically, 2 questions:

1) where the heck is the blower motor?

2) which pins can I jump to turn it on and see if it works? I dont have a switch at the moment.
Old 11-10-2012, 03:24 PM
  #3  
ledee416
Rennlist Member
Thread Starter
 
ledee416's Avatar
 
Join Date: Nov 2012
Location: Lake Park, Georgia
Posts: 445
Likes: 0
Received 4 Likes on 4 Posts
Default

found blower motor. when I apply a voltage directly to red wire pin on motor connector it should run no?

because it doesnt... grrr
Old 11-11-2012, 11:07 AM
  #4  
Garth S
Rennlist Member
 
Garth S's Avatar
 
Join Date: Oct 2003
Location: Nova Scotia
Posts: 7,210
Likes: 0
Received 16 Likes on 13 Posts
Default

Originally Posted by ledee416
found blower motor. when I apply a voltage directly to red wire pin on motor connector it should run no?

because it doesnt... grrr
Did you open the connector to isolate the motor and then ground the second (brown) wire in the connector .... while applying 12V to the red wire? Definitely 'no run' unless it sees ground.
Old 11-11-2012, 12:57 PM
  #5  
Alan
Electron Wrangler
Lifetime Rennlist
Member
 
Alan's Avatar
 
Join Date: Mar 2002
Location: Phoenix AZ
Posts: 13,426
Received 421 Likes on 288 Posts
Default

What Garth said

The connector you found is the only connection to the motor - On a Porsche a brown wire is always a ground and Porsche rarely grounds only through a bolt-up chassis connection for ancilliary equipment - most grounds are explicitly wired and routed to a specific ground point with a good chassis/body connection.

Do you have an HVAC head unit with temp/distribution sliders? the blower won't work wihout one - and not just because there isnlt a fan speed switch ? - fix that.

Don't screw around with the switch connector, to test the motor just apply power & ground directly
(VIA AN INLINE FUSE...)

Alan
Old 11-11-2012, 08:21 PM
  #6  
ledee416
Rennlist Member
Thread Starter
 
ledee416's Avatar
 
Join Date: Nov 2012
Location: Lake Park, Georgia
Posts: 445
Likes: 0
Received 4 Likes on 4 Posts
Default

I am waiting for the hvac controller. The guy I bought the car from forgot to give it to me. I should have it in a few weeks. I left the connector attached to the motor and just applied voltage to the back side of the connector red wire. I got a spark, and no motor. I will disconnect it and ground out the brown wire and add voltage to the red and see what happens.
Old 11-12-2012, 12:51 AM
  #7  
Mrmerlin
Team Owner
 
Mrmerlin's Avatar
 
Join Date: May 2004
Location: Philly PA
Posts: 28,254
Received 2,437 Likes on 1,366 Posts
Default

the motor connector is under the black cowl cover just about in the center of the well, simply add power to the red wire and ground the brown wire you will know if the motor works .

If you plug the HVAC head unit in and then the motor wont run then you should check the resistor pack as it could have burned up and or you may have damaged it by jumping power through the motor speed connector
Old 11-12-2012, 11:03 AM
  #8  
Alan
Electron Wrangler
Lifetime Rennlist
Member
 
Alan's Avatar
 
Join Date: Mar 2002
Location: Phoenix AZ
Posts: 13,426
Received 421 Likes on 288 Posts
Default

Originally Posted by ledee416
I am waiting for the hvac controller. The guy I bought the car from forgot to give it to me. I should have it in a few weeks. I left the connector attached to the motor and just applied voltage to the back side of the connector red wire. I got a spark, and no motor. I will disconnect it and ground out the brown wire and add voltage to the red and see what happens.
You will get sparks - the blower takes a lot of current on high speed...

Alan



Quick Reply: blower motor location?



All times are GMT -3. The time now is 09:40 AM.