Front Wiper Lo Operation

• BCM transmits the front wiper request signal (LO) to IPDM E/R via CAN communication according to the front wiper LO operating condition.

Front wiper LO operating condition

• Ignition switch ON
• Front wiper switch LO or front wiper switch MIST (while pressing)

• When detecting that front wiper request signal changes from OFF to LO, IPDM E/R turns front wiper main relay ON. Power supply is supplied to LO terminal of front wiper motor. Being connected to ground by wiper reverse relay, front wiper motor operates clockwise at LO.
• When detecting that front wiper request signal changes from HI to LO, IPDM E/R performs HI operation (front wiper motor rotation is counter clockwise) until detecting that front wiper position signal from front wiper motor is in near range of the upper or lower reversal position. When detecting the upper or lower reversal position, IPDM E/R turns front wiper main relay ON, front wiper HI/LO relay OFF, and wiper reverse relay OFF. Front wiper motor operates clockwise at LO.