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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1688 (Hybrid Engine Electrical System 2.4L (Hp7)) >> Diagnostic Information and Procedures >> Charging System Test

Charging System Test

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The accessory power module (APM) supplies the energy that flows between the high voltage (42 volt) direct current (DC) and low voltage (14 volt) DC to charge the 12 volt battery and power accessories. To test the charging system, refer to Charging System Description and Operation .