BIG EAZY

If your AC/Heater Blower speed always runs 1) low or 2) high, see attachment for fix.

The most likely cause is the linear controller module for 1) , and the resister (resistor) for 2).

It is rarely the $850 electronics module in the dashboard.

This is poorly documented in the available publications and even Lexus service was confused and provided incorrect info.

I will be happy to provide info in pdf, but was not able to attach. If you tell me how, I will.

I have a 91 ls400 and the blower only worked on high someone tole me to replace the resistor and i did and now it works on low and high but medium runs the same as low got any ideas!!!!!!!!!!!!

do you have floor mats? and or rear seat?