Dakota 2WD V8-4.7L VIN J (2005)
Power Window Motor: Description and Operation
The power window system allows each of the door windows to be raised and lowered electrically by actuating a switch on the trim panel of each
respective door. A master switch on the driver side front door trim panel allows the driver to raise or lower each of the passenger door windows and to
lock out the individual switches on the passenger doors from operation. The power window system receives battery feed through a circuit breaker in the
Junction Block (JB), only when the ignition switch is in the On position.
The power window system includes the power window switches on each door trim panel, the circuit breaker, and the power window motors inside each
door.
The power window motor and mechanism is integral to the power window regulator unit. If the power window motor or mechanism is inoperative or
damaged, the entire power window regulator unit must be replaced.
A permanent magnet reversible motor moves the window regulator through an integral gearbox mechanism. A positive and negative battery connection
to the two motor terminals will cause the motor to rotate in one direction. Reversing the current through these same two connections will cause the motor
to rotate in the opposite direction.
In addition, each power window motor is equipped with an integral self-resetting circuit breaker to protect the motor from overloads. The power window
motor and gearbox assembly cannot be repaired and, if inoperative or damaged, the power window regulator must be replaced.
