Why don't my doors lock/unlock if my key fob does transmit a signal?

What is your question?

Took my key fob to get new battery cause doors were not locking/unlocking. After checking it, it was working fine and transmitting a signal but something was not allowing the signal to be received. What could it be? Does it have a fuse? Where?

What makes this problem better or worse?

Doesn't work at all, have to manually open

How long has your 2016 Toyota Tundra had this problem?

Since I got the vehicle, 4 months ago