P600 - P699 OBD II Diagnostic Codes

PO600 - PO699 Numbered Code Identification Chart

P0600  Serial Communication Link Malfunction  P0601 Internal Control Module Memory Check Sum Error  P0602 Control Module Programming Error  P0603 Internal Control Module Keep Alive Memory (KAM) Error  P0604 Internal Control Module Random Access Memory (RAM) Error  P0605 Internal Control Module Read Only Memory (ROM) ErroR  P0606 PCM Processor Fault  P0609 Control Module VSS Output "B" Malfunction  P0620 Generator Control Circuit Malfunction  P0621 Generator Lamp "L" Control Circuit Malfunction  P0622 Generator Field "F" Control Circuit Malfunction  P0641 5 Volt Reference Voltage Incorrect  P0645 A/C Clutch Relay Circuit (CHRYSLER)  P0650 Malfunction Indicator Lamp (MIL) Control Circuit Malfunction  P0654 Engine RPM Output Circuit Malfunction  P0655 Engine Hot Lamp Output Control Circuit Malfucntion  P0656 Fuel Level Output Circuit Malfunction