Memory Seat System Components
The memory seat system consists of the following components:
• | Driver seat adjuster switch |
• | Driver seat front vertical adjuster motor |
• | Driver seat horizontal adjuster motor |
• | Driver seat rear vertical adjuster motor |
• | Driver seat recliner adjuster motor |
• | CLAMP 15 CRUISE 15A fuse |
Memory Seat System Controls
The memory seat system is controlled by the following components:
• | Driver seat adjuster switch |
Memory Seat Operation
The memory seat module controls all of the memory seat functions through
the use of inputs and outputs which are hardwired to the module. The keyword
82 serial data circuit provides a communication line between the module and
a scan tool and is used for diagnostic purposes and module programing only.
The memory seat module controls the seat adjuster motors by providing
voltage and ground through the adjuster motor supply circuits. The seat adjuster
motors are reversible and the direction travel is determined by of the polarity
of the supply circuits. The memory seat module uses position sensors for storing
and recalling memory seat position settings. The position sensors are internal
parts of the adjuster motors. The memory seat module provides a 5 volt reference
circuit and a low reference circuit to each of the position sensors, and monitors
position sensor signal voltages which vary from 0 to 5 volts depending on
the seat position.
The memory seat module monitors resistance through the driver seat adjuster
switch. Switch inputs to the memory seat module are determined by continuity
through a combination of driver seat adjuster switch circuits. Driver seat
adjuster switch circuits are shared among individual switches, this limits
the ability of the memory seat module to interpret simultaneous switch inputs.