Referring to the following figure, the mirror heat does not function on either side of the truck, but the back-up lamps illuminate with the transmission in reverse. Which is the least likely cause of the inoperative mirror heat?

A) Both of the mirror heat ground circuits are open.
B) The mirror heat switch is defective.
C) There is an open circuit between the fuse and the mirror heat switch.
D) There is an open circuit between the switch and the splice in the wiring harness where the left and right side mirror heat circuits separate.

Question

Referring to the following figure, the mirror heat does not function on either side of the truck, but the back-up lamps illuminate with the transmission in reverse. Which is the least likely cause of the inoperative mirror heat?

A) Both of the mirror heat ground circuits are open. 
B) The mirror heat switch is defective. 
C) There is an open circuit between the fuse and the mirror heat switch. 
D) There is an open circuit between the switch and the splice in the wiring harness where the left and right side mirror heat circuits separate.

Quizplus · Accepted Answer

The Answer of Referring to the following figure, the mirror heat does not function on either side of the truck, but the back-up lamps illuminate with the transmission in reverse. Which is the least likely cause of the inoperative mirror heat?

A) Both of the mirror heat ground circuits are open. 
B) The mirror heat switch is defective. 
C) There is an open circuit between the fuse and the mirror heat switch. 
D) There is an open circuit between the switch and the splice in the wiring harness where the left and right side mirror heat circuits separate.

Referring to the Following Figure, the Mirror Heat Does Not