Quote:

I think I understand a few

BAT, battery power to switch
ACC- accessories hot when key is turned to left
ST, start, monetary power to starter as long as key is in that starting position all the way to right
IGN1, is this the run position after the key moves left after starting?
IGN2- not sure what this is, is it the same as IGN1?



Batt... input, Red wire. comes from alt wire main splice

Acc... Black wire. feeds out accesories just in RUN ( Ign 1 ) position, and Acc position ( when its available ). Runs to fuse box

St... Start Position, yellow wire. Runs straight to starter relay, no other splice. Works in Ign 2 position, cranking

Ign1... Its acually the RUN position. Blue wire. Feeds just in RUN of course. All engine sources ( ballast, reg, ECU if pressent ) and some stuff into the cab ( cluster brake light, sometimes voltage limiter ) is sourced from here.

Ign2... Start Position. Brown wire. Bypass the ballast to feed the full 12 volts at this moment. No splices around, just the ballast splice into the coil wire to bypass the ballast.

NOTE:

when ballast is conected, both Ign wires are hot, just with diff voltages on different stances, meaning with this:

In RUN... Ign 1 is full 12 volts and Ign 2 is getting back the power throught ballast, so anything between 5-9 volts can be there.

In START... Ign 2 is full 12 volts, and Ign 1 is getting power back through the ballast, so anything between 5-9 volts can be there.

For this reason is why you see the cluster brake light dimming when cranking


TO TEST THE IGN SWITCH RIGHT OUT THE PRONGS:

One tester lead allways on BATT
Ign 1 and ACC will get continuity with BATT prong on first switch position
Ign 2 and Starter will get continuity with BATT prong on second ign switch position ( the one being pushed ).
Acc will get also continuity with BATT on ACC position.

ANY OTHER continuity test will get you no continuity reading

With a Charger born in Chrysler assembly plant in Valencia, Venezuela