Charging voltage: high
The voltage for generator output is too high.
As most generators in the cars use a built-in regulator, it needs to
replace the generator assembly (some older cars which use external
regulators, please replace the regulator directly).
The limit of usual high voltage limit in a car regulator is 14.7v.
Charging too high will make the battery go through charging, thus
shortening the life of the battery and causing it to malfunction.
No voltage output:
The generator voltage output is not detected. Table check whether
generator connections and generator belts are normal.
Diode testing:
The tester can detect whether the diode is normal by charging
current waveform. If the diode wave voltage is too high, then at
least one diode has been damaged, please check and replace the
diode. So far, the test is completed.