Here is Toyota Corolla wiring diagram for model year 1970. This wiring schematic is for 1100 and 1200 Corolla series. Following are wiring harness Corolla color codes; the first alphabet indicates the basic color of the wire and the second alphabet indicates the spiral line color. R=red, W=white, L=light purple, G=green, Y=yellow, B=black, O=orange. Example RG is for red and green line. Full 1970 Corolla 1100-1200 wiring diagram here.
