Charging System - Overview

Overview 

The PCM gathers vehicle operating system data and determines the required charging rate. Based on that data, the PCM commands the alternator to provide a specific charging rate (voltage) between 12.5 and 15.8 volts, using 1/10th volt steps. In some operating conditions, the alternator may bypass PCM control and use a default value.

* Depending on the vehicle condition, the variable control is not activated.

Courtesy of HONDA, U.S.A., INC.

When the alternator is at fault, one or more of the following DTC is stored. Refer to the corresponding troubleshooting.