My heated seats on my Acura CL 3.0 sometimes work but not always. Please help. on 1998 Acura CL

I have an Acura CL and the heated seat lights work fine. But sometimes the seat heater will stop working. When one seats goes off they both do. Usually while I am driving and it stops working, it won't start again till the next day. The light in the switch will stay on and is green. Fuse is fine. What can I do myself with out paying 100$$ diagnostic fees. Thanks.

Asked by for the 1998 Acura CL