[mauritius]

I noticed that my 2003 Rav 4 L has 2 wires running under the 2 front seats , and there is a fuse for seat heater.

How do you activate the front seat heaters?
Checked on another thread whereby someone said that their is a button on the seat - could not find anything as such on my Rav 4.

 

[desinia]

If it's the same, the manual on my 2012 shows the switch up on the dash. If you only have two wires under the seat, maybe you're looking at the sensors that tell the vehicle that some one's sitting in the seat.