Which statement about seat heater bonding is correct?

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

Answer: (C)

Bonding for a seat heater creates a low-impedance, continuous electrical path between the heater elements and the vehicle ground, and that path must stay intact even with movement, vibration, and exposure to moisture or upholstery materials. This keeps the seat at a predictable electrical potential relative to the chassis, so fault currents have a safe route to ground, reducing the risk of electric shock and preventing erratic heating behavior. It also helps prevent floating voltages that could cause hotspots or arcing if the bond were broken or corroded. When two statements describe these essential roles—providing a safe fault-path and maintaining bond integrity under real-use conditions—both aspects are true, which is why the correct choice asserts both. In practice, inspect for a continuous, corrosion-free bonding conductor or strap properly connected to the seat frame and to vehicle ground, routed and insulated appropriately.