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⚡ Do you want to be a successful electrician? Check out my complete training. Click here ???????? https://eletrica1.ead.eunaupmotors.co... --------------------------------------------------------------------------------------- Diodes rectify the alternating current generated by the alternator. They are located in the rectifier bridge and are 3 negative and 3 positive. It is normal to damage a diode when an overload or short circuit occurs in the car's electrical system. To identify if a diode is burned out, simply test with the multimeter if it is presenting a voltage of 430mv to 680mv in the correct polarity and the open signal in reversed polarity. I do not recommend replacing just one diode in the alternator's rectifier bridge because when removing the diode there is a great chance of damaging the aluminum structure of the bridge, then there is no longer any possibility of reusing it. In addition, the value of the unitary diode plus the cost of labor time to replace it exceeds the value of an entire new board with all new diodes. Thank you for following me this far, thanks. The most complete course in Brazil, no fuss. No more long and tiring courses, get to know our teaching method that has already been tested and approved by students all over Brazil. More than 2,600 students trained I know what works in practice within a workshop and I will teach you in a simple and online way, from basic to advanced. You will learn, even if you have no knowledge, until you perform the services just like the best professionals you know. Method tested and approved by thousands of students throughout Brazil. ⚡ Successful Electrician. Click here ???????? https://eletrica1.ead.eunaupmotors.co... ???? Car Sound System Installer. Click here ????????https://autosom.ead.eunaupmotors.com.... ▶ Facebook: / eunaupmotors ▶ Instagram: / eunaupmotors ▶ Telegram: https://t.me/Eletricista_UpMotors ▶ Website: https://www.eunaupmotors.com.br/