How To Check Alternator Wiring. If there are any leads which fit on to terminals marked with an earth symbol or E N or D do not test them. You need to access the alternator to test the field current.
Meter verify that the alternator is charging at least 138 volts 1000 engine RPMs. S is used by the regulator to monitor charging voltage at the battery. Httpwwwaskthemechaniccouk How to test alternator and wiring.
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Do not start the car yet. Conduct a Voltmeter Test. S is used by the regulator to monitor charging voltage at the battery. You can also check the amp volt meter by.
