What does code P0627 mean?

Q: What does code P0627 mean?

Fuel Pump 'A' Control Circuit /Open. P0627 indicates that the powertrain control module (PCM) has detected an open circuit on the fuel pump control circuit, meaning the electrical path that commands the fuel pump to run is broken or has excessive resistance. The PCM monitors the control wire for expected voltage or current feedback and sets this code when the signal falls outside the normal range, often resulting in a fuel pump that does not receive power.

DTC codes / P06xx · Computer and output circuits / P0627

P0627Fuel Pump 'A' Control Circuit /Open

P0627 indicates that the powertrain control module (PCM) has detected an open circuit on the fuel pump control circuit, meaning the electrical path that commands the fuel pump to run is broken or has excessive resistance. The PCM monitors the control wire for expected voltage or current feedback and sets this code when the signal falls outside the normal range, often resulting in a fuel pump that does not receive power.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyIntermediate

AreaComputer and output circuits

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.