The automobile dictionary meaning of the engine P0676 Code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 6 for Vehicle Speed Control And Idle Control System. 7 for Vehicle Speed Output Circuit and 6 for Cruise Control System – Vehicle Accel Too High. If you are an expert automobile engineer, you can solve the car engine problem with the automobile dictionary meaning of the code if you do not find the right meaning of the code. Find the car engine in proper way and do not add new problems in the car engine.