Worked on wiring this morning (nice and 65 degrees)
Mounted the new coil on the firewall (MSD Blaster 2)
Took off the tape on the passenger side wiring harness.
ID'd the ignition, TACH, wiper motor, washer, headlights, EVAP control, parking lights, REVERSE, 4x4 and STARTER leads.
(Been looking at the wiring diagram for 1985, from Chassis doc)
Here are the (starting at the top and going clockwise):
Loads:
---headlight feed lines (3 wires),
---alternator control (red loom),
---horn/parking lights/headlight washer (3 oclock),
Power Input to system:
------(white) main power line to electrical system mains,
------(black) power to IGN switch,
------(red) power to HEAD LIGHT relay and HORNs,
Load:
---and finally the AC on the bottom (green).
Here are 3 other connectors:
white circular -> washer pump
brown (2 wire) -> Unknown - other cruisers have that just hanging not connected (anyone know what that does???)
green -> EVAP control line - might put in an EVAP and use that in the future
Draped on the valve cover:
black cap -> Oil pressure wire to OEM sending unit
green connector -> TACH line
Switched IGNITION wire??? (maybe GROUND - comes from ST2 on IGN switch).
This is an interesting setup. The IGN wire has a connector to connect to the OEM ignitor/coil but also has a lead that goes to the small BLACK condenser with the fork (which is bolted to the coil bracket). The other lead of the small BLACK condenser is a ground wire.
QUESTIONS:
From the wiring diagram, there are the two wires going to the COIL
IG (BY) (Is this the HOT IGN wire)
ST2 (Br) has condenser on end - comes from IGN switch (Is this a switched ground?)
Two wires from the coil to the dizzy, one is the HIGH Voltage line, and there is a line that goes to a smaller wire on the dizzy, and that is connected to the TACH. mmmm, can't find that wire from the firewall.
Finally the STARTER lead middle top of pic, the 4x4 Light connector and the REVERSE connector, all lying on the frame (yeah the reverse is missing its outer shell for the connector)
Going to re-route wires to each of their destinations (most didn't move, but some did), re-wrap with vinyl tape, and put new loom on them. 12v will get RED loom. Others BLACK. This side wasn't so bad, but I did have a couple of other FJ60s I went and examined in depth.