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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Fixed And MOVEABLE Windows) >> Diagnostic Information and Procedures >> DTC B3820 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

The body control module (BCM) grounds the control side of the left rear power window down relay upon receiving a class 2 message from the driver door module (DDM).

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