2015 Mazda 3 Alternator Testing/Replacement. How to test an Alternator

Today I show you how to test and replace an alternator on a 2015 Mazda 3. The vehicle had an intermittently low charging voltage that dipped when multiple electrical loads were turned on. When an Alternator cannot keep up with the amperage demand of electrical loads the battery will not be charged properly causing the battery to go dead. DISCLAIMER. Mr.B is not liable for any injuries or property damage caused by the use of tools, service procedures, or equipment shown in any videos. Use this information at your own risk. Mr.B recommends using safe practices while working on cars but cannot guarantee that users will do the same. None of the information in any video supports a vehicle’s factory warranty and cannot guarantee a particular result. The information in any video is not intended to spread hate or misinformation. Mr.B cannot guarantee against the misuse or manipulation of the information within any video and assumes no liability from the misuse or misinterpretation of such information.