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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 300 (Fixed And MOVEABLE Windows) >> Diagnostic Information and Procedures >> DTC B1956-B1959 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

For an overview of the component/system, refer to: Power Windows Description and Operation 

Circuit Description
B+ - M74 Window Motor Supplied from a fuse.
Ground Chassis Ground
Component Description
M74 Side Door Window Regulator Motor The motor M74 is a bidirectional DC motor that moves the component: Front Power Windows & Rear Power Windows