Wiper/Washer System IPO: BC1

A ground signal from the BC1 energizes the wiper relays (both for the front and rear wipers).

The BC1 also provides a ground signal for the headlamp washer relay. Washer pump operation (front and rear washers) is controlled by the BC1 through a reversing of polarity to the washer pump.

Inputs to the BC1 include:

• Wiper Switch - Front Wiper Speed Request

  Front Washer request

  Rear Wiper Request

  Rear Washer Request

• Headlamp Switch (For headlamp wash functions)
• Tailgate position Switch (For rear wiper functions)
• K-Bus - Vehicle speed

  AIC Status

• Park Contacts - Front Wiper Motor (Park Position and Stall Protection)

  Rear Wiper Motor (Park Position and Stall Protection)