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

Need 12V + Constant at Electrical Panel

Thread Tools
 
Search this Thread
 
Old 09-06-2006, 08:39 AM
  #1  
GT Jackson
Pro
Thread Starter
 
GT Jackson's Avatar
 
Join Date: Oct 2002
Location: New Hampshire
Posts: 598
Likes: 0
Received 0 Likes on 0 Posts
Default Need 12V + Constant at Electrical Panel

Can anyone refer me to which alphabetical bus connection where I can may source 12V + constant electrical source. I have stared at the wiring diagrams until my eyes ache and cannot for the life of me make this determination.

Sorry to be such a dolt.

Gordon
86.5 AT
Old 09-06-2006, 09:00 AM
  #2  
sublimate
Gluteus Maximus
Rennlist Member
 
sublimate's Avatar
 
Join Date: Nov 2004
Posts: 6,365
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by GT Jackson
Can anyone refer me to which alphabetical bus connection where I can may source 12V + constant electrical source. I have stared at the wiring diagrams until my eyes ache and cannot for the life of me make this determination.
On the wiring diagrams the constant +12v (direct from battery) is the bus labeled "30" running across the top of most pages. See:
https://rennlist.com/forums/attachme...id=43863&stc=1
31 is ground, 15 is switched power.

You can easy find where the constant 12v comes into the relay pannel - it's the heavy guage red wires near the center of the plugs along the bottom (not sure if they're lettered like the other plugs). See:
https://rennlist.com/forums/attachme...chmentid=74042
There are three wires in that example, but they're all the same.

NOTE: THESE ARE UNFUSED. So if you screw up, Watch Out!
You'd be much better off taking the power from the downstream side of one of the fuses that's always hot (like the interior lights, etc).
Old 09-06-2006, 09:18 AM
  #3  
Pfunde
Racer
 
Pfunde's Avatar
 
Join Date: Jan 2005
Location: Copenhagen, Denmark
Posts: 463
Likes: 0
Received 0 Likes on 0 Posts
Default

NOTE: THESE ARE UNFUSED. So if you screw up, Watch Out!

Yep, watch out. I tried uninstalling and old alarm system, and when I pulled the wire, 2 sec silenc a then it just started to smoke ......burn ......f**k, unhook battery......sh*t.......... pew, I managed, but just only before creating real damage
Old 09-06-2006, 09:43 AM
  #4  
Alan
Electron Wrangler
Lifetime Rennlist
Member
 
Alan's Avatar
 
Join Date: Mar 2002
Location: Phoenix AZ
Posts: 13,430
Received 424 Likes on 291 Posts
Default

Get a fuse tap and connect to any of the top fuse connections in the center (~8) of the board (use a low rated one so as not to overload). This way you get a good connection and a fused line all in one.

A poorer alternative is the bolt on connection on top of the panel under the plastic cover - with a ring terminal (& in line fused very nearby). I'd just do the fuse tap - with a good quality tap: http://www.partsexpress.com/pe/showd...number=071-580

Alan

Last edited by Alan; 09-06-2006 at 10:31 AM.
Old 09-06-2006, 11:46 AM
  #5  
GT Jackson
Pro
Thread Starter
 
GT Jackson's Avatar
 
Join Date: Oct 2002
Location: New Hampshire
Posts: 598
Likes: 0
Received 0 Likes on 0 Posts
Default

Great info, thanks. I intended to place a fuse in-line after tapping the 12V+, but I like the idea of coming out of the fuse panel as well. Jager has a "Add a fuse" piece thaqt they deliver with some of their components but I couldn't find a source for it.

Again thanks.

Gordon



Quick Reply: Need 12V + Constant at Electrical Panel



All times are GMT -3. The time now is 04:56 PM.