ASE A6 Electrical Electronics Practice Test

Heated Seat Circuit

59. There is excessive resistance at point A in the heated seat circuit above. Technician A says the two heated seat elements are part of a series circuit. Technician B says this resistance will affect both heating elements. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B
Heated Seat Circuit


Answer A is wrong. This is a diagram of a series circuit; series circuits are different from parallel circuits. In parallel circuits, one of the components can fail without affecting the others.

Answer B is wrong. In a series circuit, an open or resistance in a wire or plug affects both elements.

Answer C is correct. Both technicians are correct.

Answer D is wrong. The module uses the signal from the NTC sensor for safety and to regulate temperatures for HI and LOW settings. Learn more about this circuit in the read more section.