Ignition Switch Wiring ?

[Rebel1]

Hi again adrian,

Sorry mate...but even when I blew up that ignition switch diagrame I couldn't read it.

But ..

It doesn't look much different to my lucas ignition switch. My lucas switch also has 4 terminals but connectors 1, 2, and 4 have 2 blades to each terminal . Pin 3 on mine is a single spade connector.

Pretty easy to sort what is what with a multimeter. disconnect the switch all together or you will be reading down and back circuits. Check continuity from the double center connectors (assuming that is Bat +) to the other terminals.

My switch has 4 positions ie the key moves to 4 positions) and terminal 1 is the batt + connector.

Turning the key fully anticlockwise produces the following:

between terminal 1 & 2 ziltch
between 1 & 3 ziltch
between 1 & 4 woohoo...continuity

turn key to second position I have:

between 1 and any of the others .. Ziltch

turn key to third position I have:

between 1 & 2 continuity
between 1 and 3 nuttin ziltch
between 1 and 4 continuity

turn key to 4 position (spring loaded start) so hold this on:

between 1 & 2 continuity
between 1 and 3 continuity
between 1 and 4 Ziltch nuffin

Sooooo from this lot I can deduce:

position 1 of switch ( fully anticlockwise)
Terninal 4 has continuity...so thats accessories

position 2 of switch:
Nothing has continuity so thats all off

position 3 of switch:
terminal 2 continuity so thats ignition
terminal 4 is on and is accessories same as in switch position1

Position 4 of switch ( ie spring start)
terminal 2 is ignition as before
terminal 3 is start (to starter solenoid)
terminal 4 (accessories) nuffin

so that's it mate.....accessories goes off when starting the car as you dont want a spike to the accessories, but it turns back on when the key returns back to position 3.

Now...all ya gotta do is identify what wires are what in ya harness.

Regarding the solenoid clicking but no start...I think that's prolly a different problem to ya wiring ( like stuck bendix gear maybe)...dunno.

I do have a wiring diagram for the colt if you want it.

Hope this helps
cheers