The following wiring diagram and electrical schematic apply for Mazda RX-3 1974 – 1977 model years. Here you will find brief yet detail information about the entire electrical system, schematic and wiring diagram illustration, also troubleshooting and service for problems related to the electrical functions of the vehicle. It covers discussion on battery, starter system, charging, lighting, ignition system, fuse, instruments, and windshield wipers.