I need of a wiring diagram to install a fuel pump relay bypass

Tiny
JUSTINRAMJUSTIN
  • MEMBER
  • 2010 DODGE RAM
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
I want to be sure I’m wiring my relay correctly (this time) I’m trying to hard wire in a fuel pump relay bypass to the tipm. After hours and hours of research and voltage testing and burning out a fuel pump do to my wiring my relay incorrectly, I want to be 100 percent sure I’m all wired correctly before plugging in my $500 Delphi fuel pump. Is there an image you can share with wire colors and which slot on the relay those wires belong? I can not find a kit specific to the 2010 ram 2500 4x4 Laramie nor a video specific to that year. I have the tipm 7 model I believe. Produced in Mexico.
Thursday, October 3rd, 2024 AT 11:14 PM

9 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
I cannot recommend you to bypass the fuel pump controls but I will give you the wiring diagrams so you can see how the system works. Also, if the fuel pump does not turn on a bad MAF sensor can cause this FYI. I would try unplugging the MAF sensor to see if it makes a difference. The brown wire goes to the PCM. Check out the images (below). Please let us know what happens.
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Friday, October 4th, 2024 AT 12:22 PM
Tiny
JUSTINRAMJUSTIN
  • MEMBER
  • 7 POSTS
Thank you so much for your response. I am a YouTube Mechanic and do my best to save myself money doing my women work. This is by far the largest out of my realm project I’ve done. Any suggestions would be much appreciated. This is also my first Dodge. What is the MAF sensor and why would you suggest not song the bypass? My truck started acting funny with starting, had a crank no start that left me stranded. I came back the nest morning, it ran fine for about a week, shut off at a stop light, crank no started until I got it to start with a miss wired relay bypass. Died, pump never worked again. It was an $80 pump I installed 2 months ago. That’s why the $500 one this time. I’m trying my best with little knowledge, so you won’t hurt my feelings by telling me I’m wrong. I need to get this thing going.
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Friday, October 4th, 2024 AT 5:57 PM
Tiny
JUSTINRAMJUSTIN
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  • 7 POSTS
I’m sorry for the typos. Hopefully you can make that out. “Doing my own work was the first typo. I think you can make out rest hopefully. My screen protector is scratched badly from work.
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Friday, October 4th, 2024 AT 9:28 PM
Tiny
JUSTINRAMJUSTIN
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  • 7 POSTS
Also, I did not have any symptoms of a failing MAF sensor. I googled it.
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Friday, October 4th, 2024 AT 9:29 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Okay, I would go over this video which can help rule out the easy stuff:

https://youtu.be/lXLJbuAZ4CE?si=RW5g0LA3cfJJEi3S

Please go over this guide and get back to us.

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Saturday, October 5th, 2024 AT 9:42 AM
Tiny
JUSTINRAMJUSTIN
  • MEMBER
  • 7 POSTS
I have already tested all the things in that video. Everything checks out and I did get the half type start spraying the starter fluid into the air Flo tube. I should mention I am getting a p0463 fuel level sensor a circuit high input code.
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Saturday, October 5th, 2024 AT 9:56 AM
Tiny
JUSTINRAMJUSTIN
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No fuel pump noise at all.
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Saturday, October 5th, 2024 AT 9:56 AM
Tiny
JUSTINRAMJUSTIN
  • MEMBER
  • 7 POSTS
Also when it first did the crank no start, I had no voltage at the fuel pump fuse. Fuse was good.
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Saturday, October 5th, 2024 AT 9:57 AM
Tiny
KEN L
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To confirm you have no power at fuse m2 correct? If so the TIPM might be bad. Can you check for power at these other fuse I have listed below? Check out the images (below). Let us know how it goes.
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Sunday, October 6th, 2024 AT 5:56 PM

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