The power seat system for this vehicle includes the
following major components:
•
Power Seat Adjuster - The power seat adjuster
is made up of the upper and lower power seat
adjuster assemblies. The upper power seat
adjuster contains two reversible motors that are
connected to worm-drive gearboxes that move
the seat adjuster through a combination of
screw-type drive units. These motors are the
height adjust motor and the front tilt motor. On
vehicles equipped with non-memory power seats,
each
motor
contains
a
self-resetting
circuit
breaker to protect it from overload. On vehicles
equipped with memory power seats the motor
overload protection is a function of the Memory
Seat Module (MSM). Consecutive or frequent
resetting of the circuit breakers may damaged the motors.
The height adjust motor is located on the rear of the upper power seat adjuster assembly and controls the up
and down movement of the entire seat. The height adjust motor can be serviced separately from the power
seat adjuster assembly.
The front tilt motor is located on the front of the
upper power seat adjuster assembly and controls
the up and down movement of the seat front
only. The front tilt motor can be serviced sepa-
rately from the power seat adjuster assembly.
The lower power seat adjuster contains one
reversible motor that is connected to a worm-
drive gearbox that moves the seat adjuster
through a screw-type drive unit. On vehicles
equipped with non-memory power seats, the
motor will contain a self-resetting circuit breaker
to protect it from overload. On vehicles equipped
with memory power seats the motor overload
protection is a function of the Memory Seat Mod-
ule (MSM). The motor is part of the lower power
seat track unit and must be replaced as an
assembly, (Refer to 23 - BODY/SEATS/SEAT
ADJUSTERS - REMOVAL).
•
Power Seat Recliner - The power seat recliner replaces the manual seat recliner.
8N - 186
POWER SEATS - SERVICE INFORMATION
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