Ignition switch pin out. I'm using an FJ62 wiring harness to run the fuel injection, alternator, starter, gauges. I cut everything extra out and will be grafting in the FJ45 harness. I'm running an FJ40 later steering column and needed to graft the FJ62 ignition switch to the FJ40 column. As you can see there is a size difference and size does matter in this application. The FJ62 ignition switch has 8 positions of which 6 are used.
FJ62 has (the #'s will correspond with the FJ40 wiring harness) labeling the wires off the Fj62 harness
#1---Blk and Blk with Green stripe- Both go directly to battery fusable links.
#2---Blue with Red (accessory).
#3---Black with Blue stripe and Black with Yellow stripe (Ignition)
#4---Black with White stripe (Start circuit)
FJ40 harness has 4 pins. After tracing all the wires I have determined I can reduce to 5 pins by removing one of the wires directly to battery. So I removed all the pins out of the FJ62 ignition switch plug and all the pins out of the FJ40 plug. I reinstalled as follows.
#1 FJ40 Black with red stripe to Black on FJ62 harness
#2 FJ40 Blue with Red stripe to Blue with Red strip FJ62 harness
#3 FJ40 Black with Yellow stripe to Black with Blue strip and Black with yellow stripe (need to solder those together and install other pin jumping to two slots instead of one)
#4 FJ40 Blue with Red stripe to Black with white on FJ62 harness.
Should only need one solder joint to mate the two switches and it'll be plug and play. And saved the ignition switch as a spare for my wagon. Instead of removing the Black with Blue on the 62 harness I cut out one wire that wasn't used on the switch on the 62 and will solder that to the Black with Yellow and pin it into the plug. Why kill a perfectly good spare switch!
After I solder the last wire I"ll report back if it works or not. Should be fine just didn't finish it all last night.