Toyota Prius: High Oil Pressure → Causes + Diagnosis

If your Toyota Prius is experiencing unusually high oil pressure, you need to find out what’s causing it right away. Unusually high oil pressure can indicate serious problems, such as a blocked oil passage, or a broken pressure relief valve.  It should be treated like you have no oil pressure until you verify what is … Read more

Toyota Prius P0606:  ECM/PCM → Processor Fault

P0606 is a generic OBD II code.  Which means that it has the same meaning for the Toyota Prius that it would for any other vehicle.  If your Prius has P0606 it’s highly likely that the ECM/PCM (engine or powertrain control module, they mean the same thing) has failed. The PCM regularly performs a self … Read more

Toyota Prius P0603: Keep Alive Memory → Error

P0603 is a generic OBD2 trouble code.  It indicates that your Toyota Prius’s keep alive memory has had an error. Keep alive memory is the data that your Prius’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

Toyota Prius P0522: Oil Pressure Sensor/Switch → Low Input

  P0522 is an OBD2 diagnostic code that is triggered when your Toyota Prius detects that the value being sent from the oil pressure sensor is below its normal operating ranged. It is typically caused by a bad oil pressure sensor or an issue with the oil system, and should be diagnosed and fixed right … Read more

Toyota Prius P0308: Misfire Detected → (cylinder 8)

  P0308 is a fairly common trouble code with the Toyota Prius. It’s and OBD2 code and means that a misfire has been detected in the 8th cylinder in the firing order.  You should only be seeing this code if you have an engine with at least 8 cylinders.  So, it’s mostly a code for … Read more

Toyota Prius P0307: Misfire Detected → (Cylinder 7)

P0307 is a fairly common trouble code with the Toyota Prius. It’s and OBD2 code and means that a misfire has been detected in the 7th cylinder in the firing order.  You should only be seeing this code if you have an engine with at least 7 cylinders.  So, it’s mostly a code for V8 … Read more