
DTC P0603 – Internal Control Module Keep Alive Memory Error
P0603 indicates a fault in the ECM Keep Alive Memory (KAM).
Related products
Related fault codes
P0601 indicates a checksum error in the ECM internal memory.
DTC P0602 – Control Module Programming ErrorP0602 indicates a programming error in the ECM.
DTC P0604 – Internal Control Module RAM ErrorP0604 indicates a problem with the ECM Random Access Memory (RAM).
DTC P0605 – Internal Control Module ROM ErrorP0605 indicates a Read Only Memory (ROM) error in the ECM.
DTC P0606 – ECM/PCM Processor MalfunctionP0606 indicates an internal processor malfunction within the ECM/PCM.
DTC P0A1F – Hybrid Battery Pack Voltage Sensor CircuitP0A1F indicates a problem with the high voltage battery pack voltage sensing circuit.
