Jeep Grand Cherokee P0606:  ECM/PCM → Processor Fault

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