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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 >> DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 >> 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:Memory Seats Description and Operation 

Circuit Description
Signal - All The control module input circuit has an internal resistance connected to 12 V.When the switch is closed it will pull the signal voltage low.
Component Description
S64D Seat Adjuster Switch - Driver The assembly S64D has 4 switches.Each switch has 2 normally open contacts that close to ground when selected.When the switch is closed it will pull the signal voltage low.
K40D Seat Memory Control Module - Driver Depending on the version, the control module can support different functions:
  • Seat Motors
  • Adjustable Pedals
  • Outside Rearview Mirror

The control module also reads various switches and sensors and makes their values available via serial data.