02 bonneville heated seat

Looking for a direction or answer to a heated seat problem in my 2002 bonneville. Something doesnt work. When heat switch is activated it starts and shuts off in a few seconds. I noticed a black box mounted under the seat clicks when you activate the seat. Would I look at replacing this relay box or could the elements be burned out. Dont know where to start. Thanks

I'm guessing here as I don't have heated seats. The controller monitors the temp and will cycle power to the elements just like an electric blanket or heating pad. Can you heat the relay(s) cycle on/off frequently (faulty temp sensor)? Have you noticed a problem with the passenger's side (control module problem)?

I'm guessing here as I don't have heated seats. The controller monitors the temp and will cycle power to the elements just like an electric blanket or heating pad. Can you heat the relay(s) cycle on/off frequently (faulty temp sensor)? Have you noticed a problem with the passenger's side (control module problem)?
I have cycled the switch many times but allways shuts off after 3-4 seconds. I'm mostly trying to find out if its a relay problem or element problem. No problems with the pass seat, but doesnt get the constant use the drivers seat gets in MN here. Thanks for your reply.

Looking for a direction or answer to a heated seat problem in my 2002 bonneville. Something doesnt work. When heat switch is activated it starts and shuts off in a few seconds. I noticed a black box mounted under the seat clicks when you activate the seat. Would I look at replacing this relay box or could the elements be burned out. Dont know where to start. Thanks


realjoe2000, did you ever find a solution to this problem. I am having the same problem with my 2001 SLE. I turn the heated seat on and it goes off in a few seconds, the passenger side works fine.
Thanks.