Electrical Problem

[jdk714]

i ahve SC440 '94 model .. i dont know why all electrical computer stuf not working ..such as like heat,a/c ,time, and the place( i dont know what is call ) its in top in car audio .. not display LCD .. anyone cant help me ...

[AWJ]

Greatings - that is the climate control unit or whatever. Do you get air? Or absolutely nothing?

[SKperformance]

do the climate control diag

as someone posted it works for the sc if not al lexus

press the recirc button and the auto at the same tiem and hold then turn the key forward

to the on position

post the code