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Home >> Dodge and Ram >> 2021 >> Durango R/T, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 43 ((Driver Memory Seat Module (MSMD) - Electrical Diagnostics)) >> DTC Troubleshooting >> B1D5B-00-Adjustable Pedal Switch Circuit Performance >> Theory Of Operation
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Theory Of Operation

WARNING: This page is about a different car, the 2021 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

The Memory System is made up of a Memory Seat Module-Driver (MSMD), Memory Switch, Driver Seat Switch, and multiple Seat Motors. If equipped the Memory System can also contain an Adjustable Pedal Motor, Adjustable Pedal Switch, Steering Tilt/Telescope Switch, Steering Telescope Motor and Steering Tilt Motor. The motors each contain a hall-effect position sensor. The hall-effect position sensor provides feedback to the MSMD in relation to the motors position.

The Adjustable Pedal Switch is a three position switch (forward, center, rearward). The MSMD monitors the forward and rearward circuits voltage. If a voltage change is detected, the MSMD will command the Adjustable Pedal motor to move the pedals in the requested direction as long as the Adjustable Pedal Switch is held in that direction or its stops have been reached.