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A last problem with my is250, when reconnecting the battery the copilot window does not go down just flashea the switch, I have done all the steps that come out in manual and continuous, check fuses and that the engine works and everything is ok
Since you disconnected the ECU from power, the windows must be "relearned" Use the switch on the passenger side and roll the window up and down several times. After doing this, the driver's switches should work to lower all windows.