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Home >> Saab >> 2007 >> 9-7X 4.2i >> Repair and Diagnosis >> Electrical >> Charging Systems >> Engine Electrical >> Description and Operation >> Charging System Description and Operation >> Engine Control Module (ECM)/Powertrain Control Module (PCM)

Engine Control Module (ECM)/Powertrain Control Module (PCM)

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The ECM/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 ECM/PCM:

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