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Need some help with a Ignition Switch wiring.
Posted: September 17, 2007, 3:12 pm
by PFM-64f100
I am redoing my wiring on my Truck. I want to use the original switch with the new harness but running into a little bit of trouble. I have looked at the wiring diagrams listed around our site but still not for sure of a couple of things. I think I am over thinking this, I know it can't be this hard.
On the above drawing (Crude at best) I know that
A = Accessories
S = Start
B = ?
C = ?
If anyone can tell me what B and C stand for that would help. If I have A and S wrong please let me know also.
I have used a test light/meter and found which ones do what but did write them down, so after the switch was installed I lost my placement. Everything does work on the wiring just need to get the placement written down. I at work so I know I am thinking of this too much and just need to get back out there with the test light and meter. But this will help greatly.
Thanks for the help in advance. I sure do want to drive my truck again.

Posted: September 17, 2007, 4:14 pm
by ripsnorter
Now you've got me overthinking it as well
Should be 4 wires.
Hot in from battery
Out to starter
Acessory out
One running through to the coil
As to which one of those is which on that, I cant really say. S would obviously be starter, and I thought the center pole was usually hot in from battery but I could be mistaken.
If I werent thinking about it I could probably just go hook it right up

Posted: September 17, 2007, 7:46 pm
by Paul Merrell
PFM B is for the battery power A is for accessories S is for the starter solenoid and C is for power to coil and temp and oil light wire color for B is yellow, and A is black-green and the second wire is green-orange third wire blue-white, S red-blue, C is red-brown second red
Posted: September 17, 2007, 7:49 pm
by PJtheRat
C is run position, goes to the red wire with a green connector, to the pink resistor wire.
B is ACC, to fuse, gauges, et al... It is hot in the run position as well as the acc position.
I think A is the common batt in, I have back-up beams and a spotlite hooked to mine, just another common tie point for the accesories.
IIRC, B & C are cut out during the Start position, the only thing getting power is the starter and the coil via a bypass.
Someone has posted the '64 wiring diagrams here before, they are also available on The Old Car Manual Project site, I can forward them if desired.
PJ
Posted: September 17, 2007, 8:07 pm
by PFM-64f100
Thanks Paul and PJ between both of your response I was able to get it right. I just have 2 wires that need different connectors but it working now.
Finally got one major task done. My list is getting shorter which I like very much. Thanks
ripsnorter at least I wasn't the only one over thinking it. Thanks for your help also. And everyone else I think this would of driven me mad or to drinking humm beer taste good. !!!!

Ignition switch wiring
Posted: September 24, 2007, 10:33 pm
by effienut2
I saw the previous replies on this subject but my problem is trying to match up with the EZ Wire harness I installed in the truck.
Maybe I too am making this too hard but I could use some more info.
Thank you for responding
Posted: September 25, 2007, 1:19 pm
by BlueGhost
This has been a real help. I just rewired my truck and plan to go back to the stock ignition switch, instead of the aftermarket "tractor" one I have in there now.