Computer and output circuit codes
Quick answer
Internal control module faults, reference voltage circuits, relay drivers and the outputs the computer commands. There are 24 codes in this group on the site.
- P0217Engine Overtemperature Condition
- P0219Engine Overspeed Condition
- P0480Cooling Fan 1 Control Circuit Malfunction
- P0481Cooling Fan 2 Control Circuit Malfunction
- P0600Serial Communication Link Malfunction
- P0601Internal Control Module Memory Check Sum Error
- P0602Control Module Programming Error
- P0603Internal Control Module Keep Alive Memory Error
- P0604Internal Control Module Random Access Memory Error
- P0605Internal Control Module Read Only Memory Error
- P0606ECM/PCM Processor Fault
- P0607Control Module Performance
- P0615Starter Relay Circuit Malfunction
- P0616Starter Relay Circuit Low
- P0617Starter Relay Circuit High
- P0620Generator Control Circuit Malfunction
- P0621Generator Lamp L Control Circuit
- P0622Generator Field Terminal Circuit Malfunction
- P0625Generator Field Terminal Circuit Low
- P0627Fuel Pump A Control Circuit Open
- P0645A/C Clutch Relay Control Circuit Malfunction
- P0646A/C Clutch Relay Control Circuit Low
- P0650Malfunction Indicator Lamp Control Circuit Malfunction
- P0685ECM/PCM Power Relay Control Circuit Open