Regarding heated seat elements, which statement is correct?

• A. A only
• B. B only
• C. Both A and B
• D. Neither A nor B

Answer: (B)

Heated seat elements are resistive heaters built into the seat and run from the vehicle’s 12-volt electrical system, controlled by a switch or control module. The important detail that makes sense of the correct choice is how those elements are wired. They are wired in parallel, so each element receives the full supply voltage when the system is on. This gives consistent heat across the seat and keeps the remaining elements heating even if one path isn’t working. If they were wired in series, the voltage would be shared among elements, heat could be uneven, and a failure in one element could stop all current through the chain, making control and reliability much poorer. Safety features such as a temperature sensor or thermal cutoff and a fuse or relay are also part of the circuit to prevent overheating. So the statement describing parallel wiring (and independent operation of elements) is the correct one.