System Overview: Signals

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The table below summarizes the input signals to and output signals from the power seat module, left (PSL) (3/26) and power seat module, right (PSR) (3/27). The signal types are divided into directly connected signals and CAN communication. The illustration below (Fig 1) displays the same information with the Volvo component designations.

Input signals	Output signals
Directly connected:	Directly connected: (power supply unless otherwise stated)
Hall sensor (x 4, integrated in the seat motors) Switch for easy-entry	Seat motors (6/16, 6/17, 6/18, 6/19)
Via Controller Area Network (CAN) communication:	Via Controller Area Network (CAN) communication:
Central electronic module (CEM) (4/56).	Driver door module (DDM) (3/126) Passenger door module (PDM) (3/127)

Fig 1: Identifying PSL & PSR Door Modules & Components

Courtesy of VOLVO CARS CORPORATION