Our Plug-n-Play CAN/Bus Load Equalizers are needed to prevent rapid-flashing turn signal indicators and BCM trouble codes on 2011-Up HD CAN/Bus models when non-compliant turn signals are installed on the rear of the bike. Plug-n-Play SUPER Load Equalizer LEQ™ for use with non-CAN/Bus compliant LED's, (REAR SIGNALS ONLY) (Road King, Road Glide, Street Glide & Electra Glide 2014 to Current)