Kill Switch wiring

[Anonymous]

What is the correct way to wire a kill switch?

When I got my Malibu it was already installed and wired
but it wont shut the car off if its running when I turn the switch to off.
I assume its running off the alt. It will not let the car turn over or start if its switched off and the car is already off.

Thanks, Rick

 

[dragginwagon406]

Borrowed from someone some time ago.

 

[Anonymous]

Thanks dragginwagon406!

 

[Brian79]

A few ? about the diagram. 1. Do I need to run a solenoid between battery and starter for it to work? 2. Shows only one wire for Alt. is that the red wire of post or is this showing a one wire set up? 3. If the one wire is the red from post on Alt. where do the clip wires go? I know this is an old post but only one I could find w/ drawing. Can't figure out why car keeps running after switch is turned off. Any tips/advice/thoughts would help tons!

 

[LS6 Tommy]

That diagram's wrong, at least in terms of what a kill switch is supposed to do. ALL power in the car should be killed, not just the accessories & ignition. The wire from the starter to the batter should be on the N/O terminal of the kill switch. Also, the FIA/SCCA require the alternator wire to the battery be interrupted, too. I don't remember if the NHRA requires that. The best way is to use a multiple pole relay that is energized by the kill switch.

Tommy

 

[grizwald]

i had the same issue. i just routed the wire from the alternator to the positive battery terminal and it works fine now.

 

[Goob]

NHRA does not require the alternator wire to be killed, obviously it would be better, the trick deal is the two-pole shut off switch...