Possible causes
– Powertrain Control Module (PCM) not programed
– PCM program
– Faulty PCM
– Wrong PCM
– PCM program
– Faulty PCM
– Wrong PCM
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0602 DODGE OBD Code Description
This diagnostic trouble code (DTC) indicates a programming error within the Powertrain Control Module (PCM).