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Trunk Release Wiring

  • Thread starter Thread starter crzipilot
  • Start date Start date Jan 16, 2010
C

crzipilot

Member
Apr 6, 2003
51
0
6
Sarasota, Fl
Jan 16, 2010
#1
  • Jan 16, 2010
  • #1
I have a '88 mustang hatch, that we put an alarm system on. We'd like to have the ability to pop the hatch off the key fob with the alarm system. the installers said they looked at it, but the fact that the trunk release button works only with key on, they said they couldn't get it to work.

Anyone know how to wire it, so it works with Key off, so we can have the remote function work?

thanks
 

liljoe07

5 Year Member
Feb 18, 2009
1,622
363
124
Cartersville,Ga
Jan 16, 2010
#2
  • Jan 16, 2010
  • #2
All you would have to do is change the power source. If its a Key on source, then change it to a constant 12v source.
 

ReefBlueHatch

Active Member
Jan 12, 2010
682
96
39
Central KY
Jan 16, 2010
#3
  • Jan 16, 2010
  • #3
That's what I did with my keyless entry kit, I just wired it to the constant hot on my CD player.
 
F

frankeeski

New Member
Dec 2, 2009
6
0
2
Jan 16, 2010
#4
  • Jan 16, 2010
  • #4
Wire the output source from the alarm to a tyco relay to activate it. Run "hot' power to the switched contact of the relay and from the relay to the trunk latch. There is no need to disconnect the existing wiring since the relay is going to keep anything from back feeding.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Jan 16, 2010
#5
  • Jan 16, 2010
  • #5
frankeeski said:
Wire the output source from the alarm to a tyco relay to activate it. Run "hot' power to the switched contact of the relay and from the relay to the trunk latch. There is no need to disconnect the existing wiring since the relay is going to keep anything from back feeding.
Click to expand...

This is how I do them.

It'll be wired something like this:

30 and 86: fused battery power.
87: To trunk release (it's the side that does not have constant key-on power)
85: Momentary input from your alarm (many have a negative 500 mA trigger).
 
Reactions: dan50
C

crzipilot

Member
Apr 6, 2003
51
0
6
Sarasota, Fl
Jan 17, 2010
#6
  • Jan 17, 2010
  • #6
thanks guys,

When you say a tyco relay, do you mean just a regular 30 amp relay or ???

I'll try it, or give this to the install guys and tell them to fix it. Thanks...

Paul
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Jan 17, 2010
#7
  • Jan 17, 2010
  • #7
crzipilot said:
thanks guys,

When you say a tyco relay, do you mean just a regular 30 amp relay or ???

I'll try it, or give this to the install guys and tell them to fix it. Thanks...

Paul
Click to expand...

Yep. Just about any SPST or SPDT relay will suffice.
 

beyondspexj

Member
Oct 30, 2009
265
0
17
Las Vegas
Jan 18, 2010
#8
  • Jan 18, 2010
  • #8
crzipilot said:
I have a '88 mustang hatch, that we put an alarm system on. We'd like to have the ability to pop the hatch off the key fob with the alarm system. the installers said they looked at it, but the fact that the trunk release button works only with key on, they said they couldn't get it to work.

Anyone know how to wire it, so it works with Key off, so we can have the remote function work?

thanks
Click to expand...

this i never knew lol. her i was thinking mine was broke since my other car has the trunk release hot at all times.
 
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