Reno470

I am installing an aftermarket seat heater kit, as I needed new seat covers anyway (bought it with dog damage). It does have the factory heated seats, but only part of one seat works. I bought a kit that has switches to fit in the OEM slots, and has all the relays and wiring. I am looking for a schematic (06) to see if I can get power directly from the old switches. Each seat will need a 10A circuit. I wanted to see how the OEM switches are wired before I start running wires. Anyone have the wiring diagram for the OEM seat heaters posted?

JLee50

https://lexusgxor.com/general:manuals

There's a link to the electrical wiring diagrams there.

Reno470

Thanks, found exactly what I needed. 20 Amp circuit already there. I will post the whole step-by-step when I get it done.

chiph9

The passenger seat may (I haven't checked) heat only part of the seat, as there is a passenger detection system in it to disable the airbags (and in later VINs - handle the dual-stage front airbags).

If you have the red "passenger airbag" light on the dash when someone is sitting there with their seatbelt unbuckled, you have the detection circuit.

Chip H.