there is no power supply getting to the brake lights, there is no brake lights when a trailer is on either. All the bulbs are fine and the fuses under the passenger side dash, is there anything else i can check? iveco daily MWB hi roof
check your switch it should be near your brake pedal, if its moved or broken then it wont open the connection and let the power though to your lights and this will be the same for your trailer.
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