I would start with the easy stuff, check wires, fuses and make sure the battery has a full charge and putting out the correct voltage. As you may know, these units are extremely sensitive to battery charge.
Is this the same bike as in your 420 thread? If so, this is your 2nd duplicate thread (I deleted your 1st dup) opened for the same issue. Your other thread is active. Many members have offered help and are awaiting your response there. This thread is now closed.
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