I installed after marker heated seats into my ride and works awesome. Recently found a shifter cover off of a 1994 SC400 with the heated seat buttons with it and wanted to know if any of you guys had the electrical experience or wire diagram to tell me what the 2 white, blue and black wires going into the heated seat buttons are so i can wire the aftermarket seat heaters up to these oem switches.

 

Which aftermarket heated seat kit did you get?

As for the switch, you can get a meter and test the existing switch to see what circuits/switch position turn the seats on and off. Do the same with the switch you have and wire accordingly.

 

I got the aftermarket heaters at (www.sportsimportsltd.com) I do believe it was the GM style i got with the high low range. As for time of heating about 5 to 10 minutes before you turn it off or low cause fo the heat compared to the OEM seat heaters lexus comes with.