Parts such as the Switch: Sw Stop Lamp, Sw,inhibiter, Washer,plain,6mm, Bolt,hex,6x20 are included in the Civic Sedan 1977 3dr1500 (kh,ka,kl) Switch parts fiche.
With a quantity of two pieces, the Key Comp,ignition is the most used part in the SWITCH diagram.
The Switch assembly is constructed from several parts from which the Cylinder Set,key. is the most expensive.