Trunk Release Wiring

[crzipilot]

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]

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]

That's what I did with my keyless entry kit, I just wired it to the constant hot on my CD player.

 

[frankeeski]

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]

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.

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).

 

[crzipilot]

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]

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

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

 

[beyondspexj]

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

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