Magnum V8-5.7L VIN 2 (2007)
Wiper Motor: Description and Operation
Operation
OPERATION
The front wiper module operation is controlled by the battery current inputs received by the wiper motor through the wiper on/off and wiper high/low
relays. The wiper motor speed is controlled by current flow to either the low speed or the high speed set of brushes. The park switch is a single pole,
single throw, momentary switch within the wiper motor that is mechanically actuated by the wiper motor transmission components. The park switch
alternately opens and closes the wiper park switch sense circuit to ground, depending upon the position of the wipers on the glass. This feature allows the
motor to complete its current wipe cycle after the wiper system has been turned Off, and to park the wiper blades in the lowest portion of the wipe
pattern. The automatic resetting circuit breaker protects the motor from overloads.
The wiper motor crank arm, the two wiper linkage members, and the two wiper pivots mechanically convert the rotary output of the wiper motor to the
back and forth wiping motion of the wiper arms and blades on the glass.
