Hello, If we operate the main light on the Honda both main lights become dark. That means the dipped light switches off correctly, but the main light does not come. New bulbs on both sides have done nothing. In the further search I am a bit perplexed now. When the dipped light is switched on, you hear the relay clack, but when switching to the main light nothing clacks. It is also no relay in the respect named. How is this circuit built up? Thanks already for your suggestions. Hartmut