Front Power Seat Control System (W/Memory): Description

When the power seat control switch is operated, a command signal is sent to the position control ECU. The position control ECU then activates the appropriate seat motor as needed. This memory system does not use a seat position sensor. The seat position is detected by counting pulses that are output when the motor turns. If there is no pulse output from the motor, the motor will stop operating. The ECU is designed so that a malfunction of the seat memory system will not interfere with manual seat control. The seat memory switch also signals the position control ECU to memorize a given seat position via the power window regulator master switch. Two seat positions can be memorized. The seat memory switch is later used to signal the position control ECU to return to one of the memorized positions.