mazda b4000 starter does not crank over

Do you have any voltage at the start wire? If there is battery voltage at the start wire on starter solenoid with key on in the crank position most of the time it's the starter,solenoid and or wires to the solenoid/starter. If no voltage is present at the above mentioned, Check for voltage at fuse panel and starter relay and IF no voltage present at these locations check the ignition for voltage and always make certain grounds are confirmed and cleaned