Pushbutton ignition in an 86

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I'm making a somewhat broad assumption here, but the 1986 Camry and 1986 Corolla ignition switches are most likely the same part. Also, considering the high theft rate for Toyota Camrys in the US, the part is unavailable from my local auto parts shop.

The ignition switch finally died. It would refuse to start, as one of the contacts had broken out of the plastic rotating bit of the switch....

Solution: Rip open my steering column and wire in some toggles.

Now I have a toggle switch to power up 12v and a momentary toggle to fire the engine. Starts every time, and it looks nicely pimp.

The biggest problem we ran into was figuring out which wires do what. This is easily enough overcome if you have a manual with wiring diagrams, or are good at reverse-engineering circuits. Took myself and my father about 2 hours to get it all worked out, but the schematic is very simple...

You need a dual-pole, single throw switch rated for automotive voltage/current (12v, 40amp works in mine, and doesn't melt) You also need a dual-pole momentary toggle or momentary contact pushbutton switch rated the same. The local auto parts shop doesn't carry dual-pole switches, so after a trip to the electronics parts shop, we were in business.

On the switch, you will note the wires are color coded (apologies if your wire color coding doesn't match). Also, the switch's terminals are labelled as follows...

IG1: Black/Yellow stripe
IG2: Brown/Yellow stripe
ST1: Black/White stripe
ST2: Brown/Red stripe
AM1: Black/Red stripe
AM2: Brown/No stripe
ACC: Blue/Red stripe

AM1 and AM2 are +12v
IG1 and IG2 are power-on for interior and engine bay.
ST1 and ST2 are starter solenoid/relay and starter motor.
ACC is accessory (radio, blower, etc).

AM1 and AM2 should both be wired to each switch (hence dual pole).
On the opposite side of the single-throw toggle, you will need to connect AM1's switched side to IG1 and ACC.
AM2 should connect to IG2 on the single-throw toggle.

AM1 should connect to ST1 on the momentary toggle/pushbutton
AM2 should connect to ST2 on the momentary toggle/pushbutton.

Easy, huh? Now you can have a pimp looking killswitch and pushbutton ignition. I highly suggest using a terminal block and crimp-style connectors, as there is VERY little room (especially when you're tall) under the steering column to solder/desolder wires and switches. Add a bit of wire to each run, and you can route/place the switches where you wish.

Sorry to say, shortly after finishing the wiring job, I managed to lose front brakes, no wreck, but very unnerving driving home... Luckily, I only blew a line (how I did it, I don't know!)