diodes in starter kills
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=65438
Printed Date: November 04, 2025 at 9:17 AM
Topic: diodes in starter kills
Posted By: zooom101
Subject: diodes in starter kills
Date Posted: November 01, 2005 at 9:05 PM
Is it really necessary to use a diode when installing a starter kill? What is the diode actually protecting in this situation? Exactly how do you wire the diode into the circuit, or do you have to have a relay with a diode installed?
Replies:
Posted By: tragik
Date Posted: November 01, 2005 at 9:14 PM
Its called a spike supression diode. It is there to prevent the voltage spike that occurs when the relay get triggered.
I have seen some installers install a starter kill without one, but I wouldn't do it. they make relay harnesses with them built in, or you can do it yourself. heres how the relay works for a starter kill.
pin 87 gets left empty
pin 87a get the switch side of the starter wire,
pin 30 gets the car side.
pin 85 gets the ignition input
pin 86 gets the ground when armed from your alarm.
put the diode between pins 85 and 86 with the strip side facing the ignition
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Northstart.....or start it your damn self.
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