spacer spacer spacer spacer

Why anti grind/starter cut relays drain batteries.

Post ReplyPost New Topic
< Prev Topic Next Topic >
Member - Posts: 12
Member spacespace
Joined: November 05, 2004
Location: United States
Posted: November 08, 2013 at 9:09 PM / IP Logged  
Wouldn't wiring the +(86) trigger to ignition alleviate all of this..?
I mean, that's the way I learned it.
Why would you need the relay active unless the ignition is turned on (in attempted theft) anyway?
That way the starter is only interrupted during the violation.
Diodes, polarity bias, etc wont matter as much in that case, right?
Member - Posts: 5
Member spacespace
Joined: December 29, 2013
Location: Pennsylvania, United States
Posted: December 30, 2013 at 3:24 PM / IP Logged  
This may be a stupid question, but does it matter which way you hook up 87a & 30?
According to the instruction manual for my Compustar CM5000 it is telling me that 87a goes to the starter side, and 30 goes to the key side.
Should I switch these wires to prevent battery drain?
86 is wired to the RS Ign, and 85 is to a GWA
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: December 30, 2013 at 10:51 PM / IP Logged  
Interchanging 30 & 87 or 30 & 87a never matter if only 2 contacts are used (ie, in plain "on-off" mode; NOT changeover mode that uses not all 3 of 30, 87 & 87a).
In fact when I use an SPDT changeover relay as a mere SPST, I will often connect the input (+12V) to 87 or 87a to avoid exposed unused "hot" terminals.
Member - Posts: 11
Member spacespace
Joined: December 09, 2010
Posted: December 31, 2013 at 10:31 AM / IP Logged  
Like Mikedelta, I am installing a CM5000 and there is no diode included on the prewired relay or harness. Should i add it to the GWA wire like Howie II mentioned earlier in this thread, band side towards RS unit?
Page of 3

Sorry, you can NOT post a reply.
This topic is closed.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Follow Follow on Facebook
Sunday, June 23, 2024 • Copyright © 1999-2024, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo spacer spacer spacer
Top spacer spacer