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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 107 (Power Seat System) >> Diagnostic Information and Procedures >> Lumbar Support Malfunction >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

For an overview of the component/system, refer to: Lumbar Support Description and Operation 

Circuit Description
B+ Supplied from a fuse.
Control - M53 Seat Lumbar Support Motor The output circuit is switched from ground to 12 V to activate the component.
Ground Chassis Ground
Component Description
S65 Seat Lumbar Support Switch The switch provides power and ground to the motor. When the switch is in an inactive state, all contacts are closed to ground.
M53 Seat Lumbar Support Motor The motor M53 is a bidirectional DC motor that moves a seat.