CL TYPE S V6-3.2L SOHC (2001)
Multiplex Control Unit: Description and Operation
DRIVING POSITION MEMORY SYSTEM (DPMS)
How the Circuit Works
The power mirrors and driver's seat have a memory feature. The two outside mirror adjustments and the three driver's seat adjustments (forward and
back, up and down, seat back angle) can be regulated separately. All of the adjustments can be memorized at the same time by pressing the MEMO
button on the driving position memory switch, and then (within five seconds) pressing one of the two position buttons. If you press that same position
button after the adjustments are memorized, the seat will move to those memorized positions.
NOTE: Disconnecting the battery for more than 30 seconds will cancel the memorized positions.
Power Mirror Position Sensors
Each power mirror has two Hall-effect type sensors to detect the changes in voltage caused by the movements of the mirror. The power mirror control
circuit in the passenger's multiplex control unit then stores the voltage changes for that mirror's position in its memory.
Power Seat Position Sensors
Each power seat motor has a reed switch 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 Seat Recline Limit Switch
The power seat recline switch consists of two switches. One of the switches detects the position, and the power seat control unit makes the seat move
forward by sending power to the power seat slide motor. Another switch detects the position, and the power seat control unit sends power to the power
seat slide motor.
When you push one of the position buttons, the driving position memory switch commands the power seat control unit and the power mirror control unit
to retrieve the corresponding power seat and outside mirror positions. This function is disabled at speeds above 6 mph (10 km/h).
