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Charging System (NGC)

The charging system is turned on when the engine is started. The Generator Field is controlled by the PCM using a 12-volt high side driver and a body ground. The PCM determines the Generator output voltage by an input from the Battery Temperature Sensor. The PCM applies a longer duty cycle on time to the Generator Field Control Circuit when more system voltage is needed. When a lower system voltage is needed, the PCM shortens the duty cycle on time of the high side driver.

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