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 Control Module VSS Output "A" Malfunction 
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 
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 

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