P0629
Fuel Pump A Control Circuit High
Generic code
Computer Output Circuit
High severity
Hard repair
Free on OBD DashX
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What P0629 means
- The fault code P0629 indicates a high voltage condition in the control circuit of fuel pump 'A'. This fault code typically points to a problem with the control module or wiring associated with the fuel pump.
Possible symptoms
- Malfunction Indicator Lamp (MIL) or Check Engine Light illuminated
- Engine may not start or have difficulty starting
- Loss of engine power
- Fuel pump may run continuously or at a higher speed than normal
- Fuel pump may not deliver adequate fuel pressure to the engine
- Fuel economy may be affected
Possible causes
- Faulty fuel pump relay
- Malfunctioning fuel pump control module
- Wiring or connection issues in the fuel pump circuit
- High resistance or short circuit in the fuel pump circuit
- Faulty fuel pump
Related parts
- Fuel Pump: The fuel pump takes fuel from the fuel tank and delivers it to the engine. Problems in this car's fuel pump may lead to engine misfire, poor fuel economy & poor acceleration
Possible solutions
- Check and replace the fuel pump relay if it is determined to be faulty
- Inspect the wiring and connections in the fuel pump circuit for any damage or loose connections, and repair as needed
- Test and replace the fuel pump control module if it is found to be malfunctioning
- Inspect for high resistance or short circuits in the fuel pump circuit and address any issues
- Test the fuel pump functionality and replace it if necessary
Free on OBD DashX
P0629 on OBD DashX
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