Memory Positioning Systems: Description and Operation

DPMS

How the Circuit Works

In the driving position memory system, the driver's seat and the power mirrors have a memory feature. The four driver's seat adjustments (forward and back, front up and down, rear up and down, and seat back angle) and the power mirror adjustments can be regulated separately. All of the adjustments can be memorized at the same time by pressing the MEMO button of the driving position memory switch, and then (within five seconds) pressing one of the two position buttons. If the same position button is pressed after the adjustments are memorized, the seat and the mirrors will move to the memorized positions.

NOTE: Disconnecting the battery will cancel the memorized positions.

Remote Transmitter Operation
The driving position memory system is directly connected to the remote transmitters 1 and 2. When the doors are unlocked using either the remote transmitter 1 or remote transmitter 2, the corresponding memory position 1 or 2 is activated.

Power Seat Position Sensors
Each driver's power seat motor has a corresponding sensor, which sends a pulse to the power seat control unit when the motor rotates. The power seat control unit then stores the number of pulses for that seat position in its memory.

Power Mirror Position Sensors
Each power mirror has a tilt position sensor and a swing position sensor to detect the changes in voltage caused by the movements of the mirror. The power mirror control unit then stores the voltage changes for that mirror's position in its memory.

Reverse Mirror Control
When the transmission is shifted into reverse with the mirror selection switch in LEFT or RIGHT the corresponding mirror tilts down automatically. If the mirror selection switch is in the neutral position, the reverse mirror control is disabled. When the transmission is shifted out of reverse, the tilted mirror will return to its previous position.