11-19-2007, 07:33 PM
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Shift_lurker
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Join Date: Nov 2007
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Have at it
Installed a car alarm from e-bay that included door solenoids, The sole reason for the alarm was to have keyless entry so all I wired up was the alarm module the siren and the door locks. Total investment maybe $100. The hardest job was hiding the wires and fishing the alarm wire through the firewall. The Lock and Unlock Circuits were tricky to figure out because the alarm module used 3 wires to open and close. 2 of the three wires were I think a positive trigger, but it could be a ground trigger I suppose. the installation of the solenoids took a little thinking but nothing lock and unlock circuits. Don’t be afraid it's not rocket science.
I'm 99.999% sure my schematic is good. if not it was free... http://www.clubfrontier.org/forums/a...1&d=1195514955
Energizing the trigger will connect door solenoid to a certain polarity. The other trigger will energize it to the reverse polarity. Hence open and close. Most door solenoids act this way even ones with 3 or more wires. They still only use 2 wires to open or close.
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