My 1978 toyota pickup has a Denso igniter for the ignition. The wires have all been disconnected from the igniter . There are six wires coming out of the igniter. If you are looking down at the igniter, wires coming out from the top are from left to right...
. Black Yellow Light brown
. Light brown
Orange WhiteIf anyone could tell me where these wires go it would be appreciated. Thanks.

 

I just took some photos of our 1980 20R. It is very original and I know there is a pic of the ignitor in the album. Take a look. Hope it helps. Google album https://photos.app.goo.gl/zcmzb8hZtZUKnoqq6

 

Don't have a diagram handy for the '80, but here's what I have for a '78. I assume it should be very similar.



Basically, the Igniter is a Power Transistor circuit that turns the Ignition Coil on & off. The Red and White wires go to a pickup coil in the distributor, which produces a small current (about 3 volts or so) via induction (a magnet passing by a wound coil of wire around a magnet, basically a generator).
There is a metal wheel on the distributor shaft that has raised vanes on it. When each of these vanes passes by the magnet, it induces a voltage in the pickup coil. This is a "signal voltage" used by the Ignitor circuit. It signals the Power Transistor inside to switch the Ignition coil on & off.

Mine has 5 wires instead of 6. The Ground should be solid black. No idea what the light brown wire might be for, maybe for a factory Tachometer in the dash? If that's the case the light brown wire should be coming off of the negative terminal of the Ignition Coil & goes to the tach.