Ignition disconnect using aux?

[theguda]

I'm wondering if it's possible to install an ignition disconnect to one of the aux switches....but here's the key. I'd like to reverse the switch so that when it's in the "on" position...the Bronco will start. So as I drive it daily...one of the aux switches will stay on. But when I park somewhere and leave the Bronco...I can move the switch to the "off" position so it won't start. That way...if someone does try to steal it...they'd have to turn on the correct aux switch or it won't start for them. I know it's not 100% foolproof...but it would at least be a decent deterrent.

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[MikeyFrog]

I would put it on the starter and not ignition, so there's isn't a chance someone accidentally turns off the car while driving

 

[Bradley Thornton]

I would put it on the starter and not ignition, so there's isn't a chance someone accidentally turns off the car while driving

This and to answer the questions yes with 2 relays it should be possible. Power would have to jump ground than that ground would have to jump for the power to starter.

 

[Bradley Thornton]

I'm sure someone smarter than me will have an easier way. LOL

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[tobands]

one thing to consider will the circuit on the switch handle the power needed by the starter

 

[MikeyFrog]

one thing to consider will the circuit on the switch handle the power needed by the starter

Switching relay to turn on the power with a lower load through the aux switch. Definitely don't put the full power through those, imo.

 

[Silver-Bolt]

The Aux switches are not powered until the key is "On". Not sure if that factors into your plan.

 

[indio22]

I'm wondering if it's possible to install an ignition disconnect to one of the aux switches....but here's the key. I'd like to reverse the switch so that when it's in the "on" position...the Bronco will start. So as I drive it daily...one of the aux switches will stay on. But when I park somewhere and leave the Bronco...I can move the switch to the "off" position so it won't start. That way...if someone does try to steal it...they'd have to turn on the correct aux switch or it won't start for them. I know it's not 100% foolproof...but it would at least be a decent deterrent.

So basically you want to implement an aux switch ignition sequence similar to this?

 

[grayshadow]

Switch probably couldn’t handle the load for the starter however, it could intercept a wiring going to the fuel pump relay.

 

[BrentC]

I am considering adding a solenoid valve on the fuel line and a hide-out cutoff switch. You won’t get far without fuel.

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