Pontiac Grand Prix P0606:  ECM/PCM → Processor Fault

P0606 is a generic OBD II code.  Which means that it has the same meaning for the Pontiac Grand Prix that it would for any other vehicle.  If your Grand Prix 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 … Read more

Pontiac Grand Prix P0603: Keep Alive Memory → Error

P0603 is a generic OBD2 trouble code.  It indicates that your Pontiac Grand Prix’s keep alive memory has had an error. Keep alive memory is the data that your Grand Prix’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 … Read more