Mazda B2300 is a mini truck produced by Mazda in collaboration with Ford and equipped with 2.3L OHC I4 engine to produce 112hp power output. This vehicle is integrated with 5-speed Mazda M50D-R1 manual transmission with optional automatic transmission to bring excellent acceleration performance during driving activity. Some customer complains on the starting system of this vehicle which has common problem due to the heavy duty vehicle application. Here we have a solution on Mazda B2300 electric diagram which explain the starting system circuitry to prevent any problem during the vehicle operational. This electric diagram is dedicated to bring excellent vehicle starting system performance with simple readability configuration. Mazda B2300 electric diagram is consisting of ignition switch, fuse panel, starter interrupt relay, remote anti theft personality module, engine compartment fuse relay box, clutch pedal position switches, transmission range sensor, starter relay, starter motor, etc. Mazda B2300 electric diagram is also completed with wire color code in alphabetical symbols, with voltage direction to provide comprehensive guidance during the maintenance process. All the components on the Mazda B2300 starting system are powered by battery power source connected through wires.