P0564 P0564 code definition The P0564 code means that the powertrain control module (PCM) has identified an electrical fault in the cruise control (https://www.yourmechanic.com/article/how-cruise-control-works) (https://www.yourmechanic.com/article/how-cruise-control-works) multi-function input circuit. What the P0564 code means The P0564 code is a generic OBD-II...