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What does abnormal voltage in Auman ECM mean?

1 Answers

SanColin

07/30/25 2:48am

Abnormal voltage in Auman ECM may be caused by a malfunctioning generator voltage regulator, loss of control in the generator regulator, or abnormal voltage detection circuits. This can lead to excessively high generator output voltage, which is then fed back to the generator's braking module ECM, causing it to also display abnormal voltage. Below is an introduction to battery charging voltage and current: 1. Voltage: The car charging voltage is 12V. During the charging process, the charging voltage is mostly between 13.5-14.5V. When charged on the vehicle via the rectifier, it should not exceed 15V. If using a charger, the charging voltage is typically 14V. 2. Current: During the vehicle charging process, the charging current should not be too large. It is recommended that car owners avoid using fast charging. When charging, use a current that is half the rated charging current and extend the rated charging time by double.

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