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Old February 28th, 2019, 14:44
Erik-XJ's Avatar
Erik-XJ Erik-XJ is offline
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Magnetic Kill Switch Issues, Diagram

Been working on a hidden killswitch for my Ď92 XJ since Iím moving out to LA soon. I wanted to keep it as complicated as possible for a would-be joyrider, so I opted for a hidden magnetic reed killswitch.

I found a old forum post on using a setup with a DPDT relay, a N/O Reed Switch, and a N/C Momentary Button (plus ledís). Iíve recently rewired all my accessories and various powered upgrades, so I felt decently comfortable going in.

Cut my ignition coil circuit, setup my LEDís for armed/disarmed mode, and hid the relay. However it ended up not working; button made an audible click in the relay, never cut the circuit to ďkillĒ the Jeep, & no power to ledís.

I triple checked my wiring, but to no avail. Iím assuming I either have a bad relay, or the diagram was incorrect (looks quite basic for the function it intended). Spent all this time and currently at a stand-still, any thoughts?

Any help is greatly appreciated

-Diagram for reference-




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Old March 11th, 2019, 17:08
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chasdb chasdb is offline
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Re: Magnetic Kill Switch Issues, Diagram

That should work of your relay contact are:

_Normally Closed 1.................._NC2
_Normally Open 1.................... _NO2
_Common 1.............................._Common 2

_Coil Positive............................_Coil Neg.
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Last edited by chasdb; March 11th, 2019 at 17:12.
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Old March 12th, 2019, 12:12
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Greenspan Greenspan is offline
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Re: Magnetic Kill Switch Issues, Diagram

Yeah what relay are you using and what are the pinout #s on your diagram?
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Old March 12th, 2019, 18:19
dktool dktool is offline
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Re: Magnetic Kill Switch Issues, Diagram

That schematic is functional IF you are connected properly to the COMMON, N.O. and N.C. of each circuit.

Be sure the momentary button is a N.C. and not N.O.
There is no reason to even have that other than for a test but it is silly at best.
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Old March 12th, 2019, 18:32
dktool dktool is offline
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Re: Magnetic Kill Switch Issues, Diagram

EDIT,........

Re; reed switch and push button, the intention is to wave a magnet across the reed which will latch the relay through the jumper on it, then use the n.c. push button to break the circuit and put it back in the "armed mode".

Again, will function of wired correctly, the fact that even the LEDs don't light indicates your wiring is wrong.

If when the engine is running you unplug the relay it should kill the engine. Does it ?
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Old March 12th, 2019, 22:21
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Nimrod Nimrod is offline
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Re: Magnetic Kill Switch Issues, Diagram

Quote:
Originally Posted by Erik-XJ View Post
Been working on a hidden killswitch for my Ď92 XJ since Iím moving out to LA soon.
L.A. is not quite the lawless outpost you may have been led to believe. Iíve lived here most of my life and have never had a vehicle stolen, and off the top of my head I donít think I know anyone who has. Still, a hidden kill switch canít hurt, so go for it. And get yourself a money belt.





Just yanking your chain. No offense taken or intended.
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