Are you struggling more with placement and routing of the harness assembly or with understanding the individual wire colors and functions?
It does take a little while to get friendly with the wiring schematics. Start here: look at your schematic and identify the wire colors for some obvious connection points like starter, ignition coil, horns, headlights bulkhead connector. Don't worry about every color and every wire, just look for the obvious stuff.
Now lay your harness out and spread it across the floor. Locate the wire colors you traced on the schematic for starter, coil, horns, lights, bulkhead. You'll have to visually identify the plugs to make sure you've got the right wires. Once you've got these figured out, you can start to maneuver the harness on the floor into the approximate shape it will fit in the car; headlight plugs to the front, coil in center rear, starter in rear right, bulkhead in rear left.
Now you have a good feel for how the harness lays into the car and runs along the rad support, left fender and firewall. Lay it in the car and connect the components you identified. Now you can use the assembly manual to figure out specific routing. You can also go back to the schematic to figure out some of the other plugs that may not be so obvious.
It does take a little while to get friendly with the wiring schematics. Start here: look at your schematic and identify the wire colors for some obvious connection points like starter, ignition coil, horns, headlights bulkhead connector. Don't worry about every color and every wire, just look for the obvious stuff.
Now lay your harness out and spread it across the floor. Locate the wire colors you traced on the schematic for starter, coil, horns, lights, bulkhead. You'll have to visually identify the plugs to make sure you've got the right wires. Once you've got these figured out, you can start to maneuver the harness on the floor into the approximate shape it will fit in the car; headlight plugs to the front, coil in center rear, starter in rear right, bulkhead in rear left.
Now you have a good feel for how the harness lays into the car and runs along the rad support, left fender and firewall. Lay it in the car and connect the components you identified. Now you can use the assembly manual to figure out specific routing. You can also go back to the schematic to figure out some of the other plugs that may not be so obvious.
