Q: 2006 RR 4.4l got a P0628 fuel pump low voltage, both relays are good both fuses are good no voltage to signal relay to close and r

asked by on

2006 RR 4.4l getting a P0628 low fuel pump voltage both relays are good and fuses are good not receiving voltage for relay to close and turn on pump. Also it is in a crazy cranking mode when you try to start won't shut off unless I turn key to off.

My car has 180000 miles.
My car has an automatic transmission.

If the relay is not being powered, trace the circuit backward to the power source using the factory wiring diagram. You will find the interruption, or the faulty control module, if applicable, using that strategy. A similar procedure has to be followed if the starter continues to function after you release the key. If you want these steps performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request an electrical circuit/component diagnostic and the responding certified mechanic will get this resolved for you promptly. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. 2006 RR 4.4l got a P0628 fuel pump low voltage, both relays are good both fuses are good no voltage to signal relay to close and r

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: DTC code P0106

Hello, thank you for writing in. The most likely cause of the issue is a bad MAP sensor. Before changing it out, you will want to check for any other obvious signs of problems. These would include frayed or damaged...

Q: Bad car thermostat

Hi there. The heating control valve or thermostat is responsible for sending recently heated coolant from the cooling tubes and to your heater core. As long as you keep your heater turned "off", it shouldn't impact the operation of your...

Q: Could tell me where telescopic steering fuse is located on 2002 BMW X5 E53. My telescopic steering is not working at all. Thank yo

On the BMW X5, the telescopic steering and the driver's side memory seat have the same controls. The fuse box is located behind the glove box. Check fuse numbers 26 and 32 which control both of these. If either of...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...