Power Seat System Components
The power seat system for the driver and passenger consists of the following
components:
• | Seat Front Vertical Motor |
• | Seat Rear Vertical Motor |
Power Seat System Operation
Two power seat systems are available in this vehicle. The AR9 system
is deluxe heated bucket seats with driver memory, and utilizes driver and
passenger seat control modules. For the driver memory seat operation refer
to
Memory Seats Description and Operation
. The A51 system is 8 way power
adjustable bucket seats with power lumbar, and all of the adjuster motors
are directly controlled through the switch assemblies.
A51 Power Seats
Battery voltage is supplied to the power seat switch through the power
seat circuit breaker. While the seat adjuster switches are in an inactive
state the switch contacts are closed to the power seat switch ground circuit.
When a power seat switch is pressed to an active state the switch contact
is closed to the battery voltage supply circuit. Each seat adjuster motor
is controlled by the power seat switch through 2 motor control circuits. The
seat adjuster motors are bidirectional and the direction of adjuster motor
rotation is determined by which of the adjuster motor control circuits is
switched to battery voltage while the other remains grounded.
AR9 Front Passenger Seat
Battery voltage is supplied to the passenger seat module through the
power seat circuit breaker. The passenger seat module supplies the seat adjuster
switch assembly with a battery positive reference voltage. While the seat
adjuster switches are in an inactive state the switch contacts are closed
to the adjuster switch ground circuit. When a seat adjuster switch is pressed
to an active state the switch contact is closed to the reference voltage circuit.
Battery voltage on a switch signal circuit indicates to the seat module the
switch status is active. Each seat adjuster motor is controlled by the seat
module through 2 motor control circuits. While the seat adjuster motors are
in an inactive state the motor control circuits are closed to ground circuit
contacts within the seat module. The seat module operates the seat adjuster
motors by switching one of a motor's control circuits to battery voltage.
The seat adjuster motors are bidirectional and the direction of adjuster motor
rotation is determined by which of the adjuster motor control circuits is
switched to battery voltage while the other remains grounded.