keypad starter kill

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audioman2007

Copper - Posts: 580

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Location: United States

Posted: March 01, 2008 at 12:19 PM / IP Logged

So I would wire it up exactly how you have it, and run the starter wire from the RS to pin 30 or atleast to the wire running off pin 30?

tedmond

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Joined: January 06, 2007

Location: Ontario, Canada

Posted: March 01, 2008 at 8:46 PM / IP Logged

correct.

audioman2007

Copper - Posts: 580

Joined: February 20, 2007

Location: United States

Posted: March 02, 2008 at 11:10 AM / IP Logged

But isnt it true that a vehicle that has passlock 2 cant be hot wired anyways? The key would need to be inserted reguardless thus you wouldnt need the starter kill relay installed correct? Also, if that relay was to blow over time, you wouldnt be able to start the vehicle. I just want to know if its really worth it to install this starter kill relay on my car that has passlock 2.

tedmond

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Posted: March 02, 2008 at 8:47 PM / IP Logged

well passlock is an antitheft system, but having one extralayer of protection is gold. the car must be REALLLY old to blow a relay. if you wire it properly and place a diode on it to control the spike the relay should last u forever. the method you are wiring it, even if the relay was defective, it would still allow the car to start. the only way it will never start is if you keep your alarm armed.

audioman2007

Copper - Posts: 580

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Location: United States

Posted: March 03, 2008 at 2:21 PM / IP Logged

Do I need a diode on all relays that I installed?

tedmond

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Posted: March 03, 2008 at 2:44 PM / IP Logged

well if you do it just allows long life of the relay and eliminates any chance for backfeed on the load.

KPierson

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Joined: April 14, 2005

Location: Ohio, United States

Posted: March 03, 2008 at 3:13 PM / IP Logged

The diode won't add life or protect the load.

The diode is to protect the drive circuit from a reverse voltage spike caused by the breakdown of the magnetic field around the coil.

In the case of a starter kill, the ignition circuit is the drive circuit, so it is advisable to use a diode to protect the ignition circuit from a short to ground. They can not put the diode inside the alarm or else the ignition feed could backfeed through the diode and power things when things aren't supposed to be powered (like a blown fuse situation).

On "most" relays the (-) drive circuit is provided by the alarm and the (+) voltage is provided by a constant battery source. If this is the case the diodes on the circuit board of the alarm/remote start will provide the proection needed.

Kevin Pierson

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keypad starter kill

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