System Overview: Signals

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 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