Question about Chevrolet Cavalier

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2nd Accessory Power??? Push button Ignition

I am installing a push button ignition in my car. The key lock cylinder has worn down so this is my alternative to around $150 new one. I am running the wires from the ignition switch to relays and switches, 3 relays, 2 toggles, one momentary push button. There are 2 accessory wires on my cavalier one orange, one brown, the orange on stays closed during the crank cycle, it operates blower, ac ect. the brown one disengages, opens during crank to start, MY QUESTION IS, how would i get it to open during crank???? Extra Info, the 12v constant along with the 1st orange accessory power, and 2nd brown one will be controlled with one switch & relay this will be ACCPWR. Ill split the 12v const having it go to the RUN relay with the ignition wire, so that i can run the car with out accessory power if i want, the third relay will have the starter wire hooked up with the 12v constant fed from the RUN relay on a momentary switch. How will i get the brown wire to disengage momentarily while CRANK to start????

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  • yadayada
    yadayada Feb 07, 2012

    I think this is a really Root Oberg idea. DO THE JOB RIGHT

  • Preston Heath Feb 15, 2012

    Well for anyone that that was interested, I figured it out just the way I wanted, I used 3 relays, 2 SPST, and one SPDT, along with 2 toggle switch's and one momentary switch to control the relays, after wiring heavier gauge wire in the relay harnesses, on relay 1 spst (accessory) I wired the 12v Constant to pin 30, (this is all using the wires directly cut from ignition switch, ) and the accessory wire from the NORMALY CLOSED pin (87a) on relay 3 (starter) that way power would be supplied through that pin as long as relay wasnt active and when it was it shwitch the Normally open (87 starter wire) I am excluding the other wired pins that are just used to energize relay, also i did run the power wire used to energize relay 3 from the out put pin of relay 2(Run position) so that relay 3 could only be engaged while relay 2 was active, also running to relay 2 for RUN is the ignition wire right with the first accessory wire(. htr,blower, ac) because i took apart the actual ignition switch and turned the deal to learn just what connects and when and found that it never disengages while in crank position, then just the 12v cons, the whole set up work perfectly its all clean keyless i did the passlock ll bypass with the right resistance, so no key needed, my security for this will be an RFID transponder, just waiting on, I dont know if you can put pics on here, im new but if anyone is interested let me know,

  • yadayada
    yadayada Feb 15, 2012

    Jesh! thanks for that I think?


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  • Chevrolet Master
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Like your style but a simple dash mounted old fashioned ignition lock would do the trick then a padlock and chain .if no key chip is used on this vehicle that is ,if so then a hook to hold the key next to the original lock so the transponder can pick it up.All these relays and things are more to go wrong at a later date and not necessary ,Whatever you do make sure the steering lock mechanism is removed so it cannot lock the steering up when turning ,their is only three main cables to worry about power feed -feed to ignition and starter motor hence in the old films they join the wires up to steal a car bit more copmplicated on a modern car with a chipped key it just doesnt happen,a breakdonw pick up truck is used to lift a vehicle and nobody bats an eyelid ,then scrapyard for all the bits to make it run again .Now i know nothing about this but when the shunter driver has lost the key to customers car on the airport parking service -say no more

Posted on Feb 15, 2012

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