Moin together..Now I have a problem with my instrument cluster..The complete lighting is no longer possible.Also the one of the heater controller is dark… I know in the search there is a lot..But a lot of tests.. Allso license plate light is burning in the back..Also in the glove compartment is burning light..Sicherung 14 is NEW and also otherwise I checked all. When I turn on light with open door also the summer goes on…At the clock the lighting…Also Zingallünder gets hot.. At the yellow Stec I measured the dimming controller.. Open it has zero ohm..Allso passage..But I also bridged it from the outside to the nuts..No success unfortunately.. What else can it be???? What I have to say is:I installed the additional instruments yesterday but without the voltage amplifier for the 3 bulbs because I wanted to build Leds there today..Then this one is no longer needed….Hope You can use t help me