Scion iQ P0203:  Injector Circuit Malfunction  | Cylinder 3

  P0203 is a common OBD2 trouble code.  It means the third cylinder in the firing order has a fuel injector that is malfunctioning.  It’s generic code, which means that it means the same thing for the Scion iQ as it would for any other vehicle. When the PCM sees that the voltage from cylinder … Read more

Scion iQ P0015: “B” Camshaft Timing  → Over Retarded

  P0015 is a generic OBD II trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Scion iQ can have VVT, and is known to develop this code. VVT changes the frequency and distribution of gases entering and exiting the combustion chamber. It allows the … Read more

Scion iQ: High Oil Pressure → Causes + Diagnosis

If your Scion iQ 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

Scion iQ P0606:  ECM/PCM → Processor Fault

P0606 is a generic OBD II code.  Which means that it has the same meaning for the Scion iQ that it would for any other vehicle.  If your iQ 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

Scion iQ P0603: Keep Alive Memory → Error

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