Grand Caravan V6-3.3L VIN E Flex Fuel (2007)
Trunk / Liftgate Motor: Description and Operation
Liftgate Motor
Description
DESCRIPTION
Figure 1 POWER LIFTGATE COMPONENTS
The gear motor assembly (Figure 1) consists of a DC motor, hall effect sensor, engage actuator, full open switch, lift gear, aluminum housing, drive gears
and wire harness. The gears and motor portion of the assembly provides the power and torque required to open or close the liftgate. The hall effect
sensor is used to provide the liftgate control module with a speed reading, which is used to monitor the resistance of liftgate travel. This speed reading
also allows the power liftgate control module to detect obstructions and move the liftgate accordingly. The engage actuator is used to toggle between
power open/close mode and full manual mode when desired. The full open switch is used to let the power liftgate control module know when the liftgate
is approaching the full open position.
Serviceable components of the power liftgate gear/motor assembly are the complete gear/motor assembly, motor and wire harness, lift gear and control
rod, engage actuator, full open switch and the transverse bracket.
Operation
OPERATION
With the push of a power liftgate command switch (liftgate closed), the power liftgate control module will signal the latch assembly to release the liftgate
from its primary closed and latched position to the released and movable position. The liftgate motor-mounted engage actuator then engages the liftgate
motor assembly, which moves the liftgate into the open position. The liftgate motor provides the torque and power to move the door to its full open or
closed position.