Hey...I got a '92 Coupe DeVille that I just put a AvantGaurd 4 in to, except for the trunk release. I'm trying to hook it up to the Aux A line, and I only get like .62 volts coming out (not matter the setting) when I trigger it. My trunk switch is on the 12+ line. So my question is, how do I get .62 volts to release something that needs 12?
Thanks
Roman
why dont you use a relay? plug 85 terminal to your .62 line and 86 to a ground, 30 to your trigger and 87 to a fused +12V line?
Eduardo
I'll give it a try. Don't know too much about relays, just what they look like. What kind would I need?
Thanks
I think any relay with these terminals should work. Take a look at the diagram on the Basics section / Relays. I bought a couple of Ford relays at a very ugly auto parts store, and 2 relays and their sockets cost about 10 dollars, I think they will be much cheaper on the US
Terminals 85 and 86 don't matter much about polarity, you can hook up (theoretically) your .62v or your ground to any of those, because those activate the relay (turn the switch on)
How does your trunk release activates? do you have a switch on your dash?, is it alarm-activated or what? because by plugging terminal 87 of your relay to a fused 12v line and terminal 30 to your trunk release cable just like that, you could short the system. if you have a switch, cut your 12v cable that feeds the trunk release from the switch, then the end that goes to the switch, connect it to terminal 87a and the end that goes to the trunk release mechanism connect it to terminal 30. this will allow your mechanism to still work with your switch, as if you had never cut it. then connect the fused 12v line to terminal 87. What this will do is that when your Aux line feeds its .62 volts to the relay it will cut your switch cirtcuit and feed 12v to your trunk release, regardless of the voltage of your aux line.
Hope this works
Eduardo
just a note here it is always a great idea to get into the habit of using the proper polarity on the coil on relays. The reason for this is newer relays and especially ones you get from the auto parts store have a quenching diode inside across the coil 85 should be ground 86 should be positive. you will use a spdt type relay they come rated at 30 amps some 40 amps these will work fine. an example of relays that have an internal diode would be newer bosch relays.
Thanks guys, I'll go pick some up in a bit. I'll let you know if I fry anything.
Thank god for fuses....My trunk switch is in the glove BTW on the (+) line. It's a '92 Coupe DeVille.
mobiletoys,
what about on the diagrams here on this site about the 5 wire positive door locks? on one relay, positive comes thru 86 and on the other comes thru 85, and with ground wiring is just the reverse of that. I thought relays terminals 85 and 86 could be wired one way or another...
Eduardo