Leaderboard

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.