Code P0628

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Riccochet

Senior Member
Joined
Aug 14, 2013
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1,796
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Location
Somewhere around Charlotte
Ram Year
2020 2500 Laramie Longhorn
Engine
6.4
Truck is throwing a P0628. Says low voltage to the fuel pump control module. Do I need to replace that module or something else? If I do get a replacement module will a dealer need to program it to work with my truck?

first code my truck has thrown in 89k miles. I can't complain about that.
 

BossHogg

Senior Member
Joined
Feb 23, 2014
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1,932
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Location
Oakland Township, Michigan
Ram Year
2015
Engine
6.7L Cummins
Truck is throwing a P0628. Says low voltage to the fuel pump control module. Do I need to replace that module or something else? If I do get a replacement module will a dealer need to program it to work with my truck?

first code my truck has thrown in 89k miles. I can't complain about that.

Before you star throwing parts and money at it first understand the many problems it could be signaling.

P0628 – Fuel pump control -circuit low – OBD2 Trouble Codes
 

RamCares

Senior Member
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Jan 21, 2016
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3,782
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Location
Michigan
Ram Year
n/a
Engine
n/a
Truck is throwing a P0628. Says low voltage to the fuel pump control module. Do I need to replace that module or something else? If I do get a replacement module will a dealer need to program it to work with my truck?

first code my truck has thrown in 89k miles. I can't complain about that.

Hi Riccochet,

Sorry to hear about this! If you end up deciding to visit your local dealership for further diagnosis I'd be happy to assist if needed. Just PM our page with your VIN and let me know.

Andrea
Ram Social Care Specialist
 
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