Is there a way to leave lumbar heat on and turn off bottom heat?

[Cerwin D. Vega]

Are there two separate heating elements/circuits.

In the Colorado you can have lumbar heat without bottom heat by using the provided switch. I have no use for the bottom heat, the lumbar on the other hand is beneficial for the old back. I would like to disconnect the bottom heat if it is possible and leave the lumbar on.

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[Cerwin D. Vega]

I would like to see the circuit diagram. if there are two elements it seems like it would be as easy as disconnecting it.