Hello all. Recently bought a 770D John Deere grader that didn’t come with all lighting options. I’m trying to add a beacon but the switch does nothing. The fuse is in place but has no power. The relay has power. Does anybody know if programming is required? I can’t get ahold of a wire diagram.
Welcome to HEF Bzdrifter . You have to access service mode through the monitor and enable the beacon option in machine setup. Check your messages.