diode
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=129341
Printed Date: July 12, 2025 at 10:43 AM
Topic: diode
Posted By: ricardoboston
Subject: diode
Date Posted: November 22, 2011 at 6:57 PM
hi i got a question cause i see an installer doing it,its possible to use a diode instead to use a relay for second acc second ign or second start wire,its this right or wrong to do ?
Replies:
Posted By: KPierson
Date Posted: November 22, 2011 at 8:16 PM
You should keep all OEM isolated wires isolated. By using a diode (assuming it's big enough to safely pass the current required) you would be compromising the isolation of the wires.
A relay should be used to prevent any current from flowing from one wire to the other.
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Kevin Pierson
Posted By: ricardoboston
Date Posted: November 23, 2011 at 6:43 AM
thanks for reply me but my question was ,sometimes installers they used to wire a relay for a 2 acc, 2 ign,or 2 starter, instead to wire a relay some installers use a diode on this kind of aplication ,kind to put the diode on the wire that needs to be power up to the acc,ign or stater thanks ,its this right to do?or a relay its the right way to go?
Posted By: KPierson
Date Posted: November 23, 2011 at 7:03 AM
A relay is the right way to go.
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Kevin Pierson
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