Acura RL P0603: Keep Alive Memory → Error

P0603 is a generic OBD2 trouble code.  It indicates that your Acura RL’s keep alive memory has had an error. Keep alive memory is the data that your RL’s PCM (Powertrain Control Module) has learned about how your engine conditions.  All of this sensor and driving input data is used to keep it operating efficiently. … Read more