Circuit Description
WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
As a result of a short circuit, overcurrent may occur in the Peltier element of the seat climate controller, fan motor or rear seat heater. If this happens, output from the Peltier element, fan motor, rear seat heater and idle-up signal (not including the front passenger side) will be stopped and the indicator illuminates according to blinking pattern 1.