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Home >> Hummer >> 2007 >> H3 Automatic >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Description and Operation >> Charging System Description and Operation >> Charging System Components >> Powertrain Control Module (PCM)
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Powertrain Control Module (PCM)

The PCM provides information over the class 2 serial data circuit to the generator battery control module. The generator battery control module monitors the following data parameters provided by the PCM:

The generator battery control module uses these data parameters for different charging system modes depending on the required voltage needed.