Thread: Kill switch, the question is what circuit to interupt?

Originally Posted by sierrafery

A simple one would be to go into one wire from the inertia switch circuit, this cuts the main relay coil's feed which means ECU, MAF, IATV and all injectors feed too + the pump and according to the setting in BCU if the ignition is turned on with the inertia switch opened the hazards will start as well... no fault codes in this case

Yep hard to start if the inertia is tripped.

Originally Posted by Roverlord off road spares

Yep hard to start if the inertia is tripped.

Yes like mentioned before i do like this idea, but i have fiddled with the inertia switch before and have come across this issue: when the inertia switch circuit is opened, the car will be disabled plus the hazards will flash until i remove the battery cable.. this is not a feasible solution as far as a kill switch mod goes. As far as i am aware though, other vehicles dont need the battery cabled to be removed to re-enable the vehicle.. very strange

Originally Posted by Jazzman

Now that is a mature response. I wasn't meaning to criticize you, just thought is was different. We have heaps of cars being knocked off in Melbounre at the moment, and they all have market value in one way or another. Thieves are scouting streets to find the cars they want and breaking into the houses to steel the keys. I thought you where referring to this.

Dont Stress mate, the interesting thing about texting/social media etc is that we cannot see each others face when we "speak".. which often leads to people getting the wrong message!

yes i was actually referring to people getting a kick/using vehicles for ram raids etc. Being someone who stresses a lot, it is mostly to ease my mind when i park it up

I think i will go with the Injector supply cut off.. Rangieman has basically led the way with the resistor.

Originally Posted by Mk1_Oz

I would inturupt the starter relay that triggers the starter solenoid. From the ignition switch, put a switch in the White/Red wire that runs to fuse 23 in the passenger compartment fuse box. This will prevent the car from cranking. I guess an eager thief could push start the car if its a manual (don't think the 04 came in a manual though?) so you could use a double pole switch and connect the Yellow run wire from the ignition also.

Many ways to achieve what you are trying to do.

The LPG system will have a tachiometric relay in there somewhere that cuts the gas if the engine stops turning. You could find that and manually switch the control wire but I do not have any knowledge of what that would do to the petrol system (I assume you can switch from petrol to diesel easily?).

Thanks for the comment, i have thought about this but my vehicle is actually manual. And my father always says if a job is worth doing, its worth doing right.. Like said before i will update this thread once i have put in a kill switch mod.. we will see how it goes

Originally Posted by DieSchnelleKafer

Yes like mentioned before i do like this idea, but i have fiddled with the inertia switch before and have come across this issue: when the inertia switch circuit is opened, the car will be disabled plus the hazards will flash until i remove the battery cable.. this is not a feasible solution as far as a kill switch mod goes. As far as i am aware though, other vehicles dont need the battery cabled to be removed to re-enable the vehicle.. very strange

Do you mean that if you close back the inertia switch, turn the ignition off and press unlock on the fob the hazards will flash untill you disconnect the battery? ... in this case this feature can be disabled in the BCU

Originally Posted by sierrafery

Do you mean that if you close back the inertia switch, turn the ignition off and press unlock on the fob the hazards will flash untill you disconnect the battery? ... in this case this feature can be disabled in the BCU

yes.. thats exactly what happens actually. Okay maybe the inertia switch idea is a winner.

Another simple one is to insert a switch in the ignition relay's fuse F14(interior fusebox) this would leave the ignition coils without feed

Am I missing something here? Why not just have a switch in series with the circuit which is completed when the ignition key is turned?