FixVault
Home
›
Jeep
›
2025
›
Grand Cherokee Summit
›
Repair and Diagnosis
›
Engine Performance
›
System
›
3.6L - DTCS P054C To P0602
›
DTC Troubleshooting
›
P0602 Control Module Programming Error/Not Programmed
›
When Monitored
When Monitored
This diagnostic runs continuously when the following conditions are met:
Each time the ignition is turned on the PCM internal identification is checked.