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FuelSeverity High: diagnose before driving on

P0628Fuel Pump "A" Control Circuit Low

What it means

The fuel pump control circuit reads too low a voltage.

Symptoms

  • No start
  • Stalling

Common causes

  • Control wire shorted to ground
  • Faulty relay or module

What to check first

  1. Check the control wire
  2. Test the relay or module
  3. Check fuses
Can I drive with P0628? Not recommended. P0628 can lead to stalling, limp mode or engine damage; diagnose it before driving further.

Generic OBD-II meaning. Manufacturer-specific meanings and checks can differ; always check the service information for the car.

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P0628: questions and answers

What does P0628 mean?

P0628: Fuel Pump "A" Control Circuit Low. The fuel pump control circuit reads too low a voltage.

What are the symptoms of P0628?

No start. Stalling.

What causes P0628?

Control wire shorted to ground. Faulty relay or module.

How do you diagnose P0628?

1. Check the control wire 2. Test the relay or module 3. Check fuses

Can I drive with P0628?

Not recommended. P0628 can lead to stalling, limp mode or engine damage; diagnose it before driving further.