Manual Open/Close Function
When the ignition switch is in the ON position and the driver’s power window switch is pulled halfway, a manual UP signal is input to the IC and the following change occurs:
Tr: ON
UP relay: ON
DOWN relay: ground circuit
As a result, the driver’s power window motor revolves in the UP direction. When the switch is released, the UP relay turns off and the motor stops.
When the driver’s power window switch is pushed halfway, a manual DOWN signal is input to the IC and the following change occurs:
Tr: ON
UP relay: ground circuit
DOWN relay: ON
As a result, the driver’s power window motor revolves in the DOWN direction.
HINT:
Some models are equipped with a PTC thermistor or circuit breaker in order to prevent excess current to the motor.
One Touch Auto Open/Close Function
When the ignition switch is in the ON position and the driver’s power window switch is pulled fully, an auto UP signal is input to the IC. As the IC has a timer circuit and the circuit maintains ON condition for a maximum of 10 seconds when the auto UP signal is input, the driver’s power window motor continues to revolve even after the switch is released. The power window motor stops if the driver’s window completely closes and the IC detects motor lock from the signals from the speed sensor and limit switch of the power window motor or the timer circuit turns off. Auto close operation can be stopped by pushing the driver’s power window switch halfway for opening.