Giving up on ignition switches, Need wiring diagram, Bought a universal starter/ignition switch.. Options

[Andyrew]

So my 3rd replacement ignition switch started tweeking out on me. Im tired of this. This is not a stock 914 so I decided to get an aftermarket switch. 10 bucks at Autozone and I have a switch that I doubt i will ever break.

So I pull the wiring which I have become so familar with and see that there are 6 prongs on it. One obviously ground(Black), One obviously power(red, thick), One keyed power (red, thinner), and one obviously starter(yellow).. But then I see 2 other small wires, a white, and a white/brown. Where do these suckers go? There is no accessory switch to the 914 so I doubt anything can go there, Are they the wires that are keyed power or say a relay? How do I wire this on a 4 prong switch??? I would think that the two smaller wires just go on keyed power, but I'd hate to do it and be wrong.


Thoughts?

Thanks all.

[jcd914]

It sounds like you are trying to connect the aftermarket switch up correctly.

If you look at 26 on the diagram the middle 5 terminal are the ignition/start switch.
15 - 2 black wire is ignition power out
1 of the wires goes to the fuse panel (fuse 9) and then to the eng comp fuse/relay panel
1 of the wires goes to the logic relay under the passenger seat
X - Red wire is accessory power out
P - Gray wire is power out with key off
30 - Big Red wire is power in from the battery
50 - Big yellow is starter power out

As the key is turned first power is cut off from the gray wire then when the key reaches the "on" position power is supplied to both the 15 and X terminals.
As the key is turned past "on" to the "start" position power is cut off from the X terminal to reduce the electrical load so more power is available to the starter and ignition.

If you are eating up stock switches maybe you need to put relays on the accessory circuit or check to make sure you do not have excess load tied to the ignition circuit. Often extras (stereo, amps, fog lights, etc) get connected to the first switched power found. There could be more load on the switch than is can handle.

Good Luck
Jim