Exam 58: Horn, Wiper, and Blower Motor Circuits

Which of these should never be used as windshield washer fluid?

Most horns are grounded through a fusible link.

All of these could cause the wiper motor to run but NOT move the wipers, EXCEPT ________.

Horn circuits are generally protected by a ________.

The electronics in the rain-sense wiper module can detect the presence of rain drops under various lighting conditions. Which of these solid state components is used to sense rain drops?

The horn relay is controlled by the horn button and/or the BCM.

Refer to the wiring schematic. A burned open R2 in the blower resistor pack would have what effect on the blower operation?

Technician A says that most horn circuits use a relay and the current through the relay coil is controlled by the horn switch or body control module. Technician B says that most windshield wipers use a two-brush, three-speed motor. Who is right?

The rain sense module (RSM) can turn on the wipers by communicating with ________.

A typical blower motor draws about ________ amperes on high speed.

Two-speed wiper motors generally use ________ to achieve the two speeds.

A bidirectional scan tool allows the technician to run the wiper motor forward and backwards.