Thank you for using just answer. 3 fuses power this circuit.
1- 30A POWER fuse
2-10A DOME fuse
3- 15A ECU-IG fuse
Double check the fuses, if the fuses are good you would need to test the switch, is it possible that this system IS working but you need to rememorize the positions??
There are several fuse blocks in this vehicle, this is shown in your owners manual if you are not sure about locations or click the link i posted below:
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Former Lexus Master technician
Master Certified with lexus, 6 years experience
Hi Many thanks for this
I have checked the fuses and they are all fine
Will test the switch box next
You have said about rememorizing the position, How do you do this?? as the buttons on the switch are dead, does this need to be done by lexus on a computer
Thanks Simon