Lexus LS460 dim and fading triple beam headlight unit possibly due to circuit board issue on Lexus LS460

Some Lexus LS460 owners report experiencing dim and fading triple beam headlights potentially due to circuit board issues. These problems may stem from damaged wiring within the headlight unit, which can affect the functionality of the circuit board. In some cases, a faulty Headlight ECU may need to be replaced to restore proper operation. Additionally, owners should ensure that the correct headlight assembly is installed, as using the wrong one can lead to further complications. Some owners also find that a malfunctioning height control sensor impacts their headlight performance, necessitating replacement. Updating or reprogramming the headlight system software may also be required to resolve underlying issues. If these steps do not alleviate the problem, consulting a professional mechanic is advisable, as addressing these electrical concerns promptly is vital for maintaining visibility and safety while driving.