I have an 07 KW W900 that I attempted to put in dot led headlights. The low beams had a resistor diode. When I hook either low beam up they work but as soon as connect high everything goes out. It seems to mess up something because when I put the originals back in nothing works right, like right now I only have low beams. Could the control module be bad? Everything will work then nothing then... where could I start? Thanks
W900 LED headlights
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Cornhauler, Jan 3, 2022.
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