Charging System Description - Overview Civic

Charging System Description - Overview

Overview

Depending on the vehicle condition, the variable control is not activated- 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 14.5 volts, using 0.1 volt steps. In some operating conditions, the alternator may bypass PCM control and use a default value-

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

Detection Item

P0562

Charging System Low Voltage

P065A

ACG No Charging Malfunction

P1549

Charging System High Voltage

P16BB

Alternator B Terminal Circuit Low Voltage

P16E2

PGM-FI-ACG LIN Communication Error

P16E4

ACG High-temperature

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