Admiral Vorian

here's what ive got. my wiring diagrams r bad but just imagine all open ends with labels that say to harness.





so what i think this will do is:

With the "on sw" off, nothing gets power, car is off.

Turn "on sw" on, IG1, ACC, and IG2 get pwr from BATT.

Press momentary switch, IG2 and ACC lose power from batt but ST gets it. Release and back to normal.

someone plz critique, i REALLY don't want to blow up any cars....again....

ari_one

Does this help? Look at the box and look at which wires are getting power based on which position the key is in. The two are IG1 and IG2 (ignition), they provide power to different parts of the car based on whether the car is running or starting.

Acura Legend Online Service Manual (Page: 1019)

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Admiral Vorian

Basically Im hoping someone can come up with a wiring scheme that will do the following:

Throw one switch. acc,bat,ig1+ig2 are completed.

Depress momentary sw. acc and ig2 are no longer part of circut, but batt and g1 still are with the addition of st.

Release momentary, back to acc.bat,ig1 and ig2 until throw switch is set to off.

SPDT 87a lol amirite?

ps im pretty sure my alarm disables my starter relay so don't do this unless you can disable starter cause then your car will get stolen duh

95LegendGS

I thought about posting something so here it goes.

Why not have a switch to arm the fuel pump and then just a push button that would crank/start the car?

Or do you still want to use a key? If using a key I don't really see a point besides being able to have the ign click then hitting a button?

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Admiral Vorian

revised first post. Would appreciate any input!

if you just arm the fuel pump and then send voltage to the starter relay, the car will turn over and then immediately die after you release the switch, because it has to be in 'on' mode aka IG1, ACC, and IG2 get pwr from BATT



and just to reiterate my alarm disables my starter!!!!!

I think im close, if not spot on. I just want some positive feedback before i go forward with this and fab a switch panel.

Disarm alarm, get in car, flip switch, press start, no keys!

kotetu

so you want the car to start with no key? Assuming someone can bypass your alarm, are you not fucked? I hear alarms get bypassed all the time. Just do like the S2000 does. Insert key, turn to on position. Press button to crank starter.

you could have a remote startup programmed to a rfid signal. Then have the rfid transmitter surgically implanted in your thumb. Then when you walk up to your car and give it the thumbs up it will start. No keys!



Actually now that I have said that, you COULD get a remote start unit, then remove the ignition and relocate the wiring so the car would be that much harder to steal. What a weird thing to do though. lol

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Admiral Vorian

whats the point of pushbutton if you have to use the key?

why does everyone talk about keys


no keys!

ptan1968

/\ you still need to use the key to unlock the steering wheel if it is in lock position sometimes or unless you want to remove the ignition key cylinder completely off.

Biggg72

Why not try and find some schematics for say the nissan altima(thats the only one i know of for sure), it has the piece, cpu chip, whatever it is that lets you start the car with a push button as long as it close. this may give you some insight of where you need to go

Admiral Vorian

so dont lock ur steerin ill have my key with me just in case anyway.


bigg72, thank you for the constructive advice. I'm not looking to go RFID yet, too expensive. This mod will cost me 20 bucks max..some switches and relays.



koteu, rfid is not as secure as people think. and when you speak of alarm bypass i would imagine cutting the horn that makes all the racket. "bypassing" the alarm in a true sense is damn near impossible because it's hard wired into the car. (now, if you can get the car into the "on" position but it won't start, you can "bypass" the alarm by directly shorting the starter to the battery. but all this takes more work than just pulling up to the car with a towtruck and taking it undamaged)

I may add an extra layer of security, say, you must turn dome light on to start the car, or depress the TCS button, or turn the courtesy lights off, or something like that, but im too lazy -_-

ptan1968

/\ Are you positive about that all the time? But your point here is to make the keyless starter by just using the SPDT switch and a push button >>>

Or like I said unless you want to disable or remove that iginition key lock to free the steering wheel from being lock by accidentally.

Johnny Kim

search a thread similar to this that ive descussed, dont feel like typing all again.

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kotetu

well then why not replace the ignition with a palm print reader? Fujitsu makes them: PalmSecure : FUJITSU United States

Now you have no key and no one but you can start the car.

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Admiral Vorian

ptan, i will leave the lock cyl where it is, and the key will be on my set, in my pocket just in case. I'm cutting the harness of a donor car, and just clipping my switches to the 7p behind the lock cyl. This way, if i have any issues, i can just reconnect to lock cyl. And , correct me if im wrong, but you only need the key in a mechanical sense to unlock steering. So, with the harness disconnected from the lock cyl, i can still unlock wheel.


koteu, again, i dont want to spend money. send me a carpc and palm reader and ill do it.

and AGAIN

my alarm disables my starter, i've confirmed it. So no security issues (unless I'm a retard and don't enable my alarm when I leave the car)


edit: can someone please let me know if im going in the correct direction with my wiring? While the other kids were learning ohms law i was learning binary, sorry.

ptan1968

Yes, you're correct you only need the key in a mechanical sense to unlock steering. So with the harness disconnected from the lock cyl, you can still unlock wheel.

Now play with the wiring from the ignition to the SPDT and the pushbutton.