An alternator voltage regulator is essential for sustaining the correct voltage output of an alternator, which is answerable for charging the battery and powering electrical elements in a automobile. A defective voltage regulator can result in overcharging or undercharging of the battery, which might trigger harm to the battery and different electrical elements.
Checking the alternator voltage regulator is a comparatively easy process that may be executed with a number of primary instruments. First, disconnect the unfavorable terminal of the battery. Then, use a multimeter to measure the voltage between the constructive terminal of the battery and the output terminal of the alternator. The voltage ought to be between 13.5 and 14.5 volts. If the voltage is under or above this vary, the voltage regulator could also be defective and should be changed.