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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 102 (Mirror System) >> Diagnostic Information and Procedures >> DTC B1544, B1600, or B1605 >> Circuit Description

Circuit Description

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

The driver door switch (DDS) and passenger door switch (PDS) supply battery positive voltage and ground on opposing mirror motor control circuits upon receipt of a mirror switch activation or a GMLAN message commanding mirror control, memory recall or mirror tilt in reverse functions.

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