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Dodge RAM 1500 4x4 My OBDII port is not getting power, my My…

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Dodge RAM 1500 4x4...

Dodge RAM 1500 4x4 My OBDII port is not getting power, my My OBDII port is not getting power, my dome lights only work when the ignition is on and my door locks will only work when the ignition is on and doors are closed? What could be causing this?

Mechanic's Assistant: Have you checked the vehicle's manual for this?

Checking now

Mechanic's Assistant: What year is your Ram 1500?

2003

Mechanic's Assistant: Are you fixing your Ram 1500 yourself? What have you tried so far?

I tried check all fuses and yes fixing myself

Submitted: 7 months ago.Category: Dodge
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Answered in 1 minute by:
12/21/2017
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago
Jaybird61
Jaybird61, ASE Certified Master Technician
Category: Dodge
Satisfied Customers: 2,312
Experience: Automotive Instructor at Palm Beach State College
Verified

Hi, My name is Jay

What engine size do you have so i can bring up the correct vehicle on my system?

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Customer reply replied 7 months ago
4.7
Customer reply replied 7 months ago
I can type
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

give me a minute to look up your vehicle.

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Customer reply replied 7 months ago
No problem...
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

Check fuse number 51 in the engine compartment fuse box to see if it is good and then see if it has power to it? Let me know?

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Customer reply replied 7 months ago
my tester light shows it works when the truck is on and off
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

This fuse powers the data link connector and as long as the engine computer is working then you should have communication with it. What kind of scanner are you using and have you used it before on this truck?

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Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

Are you having any issues with the instrument cluster? The cluster controls the door locks.

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Customer reply replied 7 months ago
I attempted to get my inspection done in NY and they stated my odb2 was not reading. My scan is a maxi scan however. I saw an post someone made prior and I have the same issues. But so far I haven't located any bad fuses. My battery was bad and a changed it. When the truck is shut off the truck will not turn on its headlights or unlock door buttons will not work either.
Customer reply replied 7 months ago
The cluster won't work when the truck is shut off
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

Check fuse number 28 in same box for power only when key is on? Also make sure fuse is good?

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Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

Also check fuses 18, 20, 22, 51 and they should have power all the time.

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Customer reply replied 7 months ago
Ok one sec
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago
Ok.
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Customer reply replied 7 months ago
All show power when on, however 28 only when truck is on
Customer reply replied 7 months ago
When off 28 is the only one that doesn't
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago
All others have power? And are not blown?
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Customer reply replied 7 months ago
have power, when truck is on and off. Doesn't show any blown
Customer reply replied 7 months ago
28 is the only fuse with no power when truck is off
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago
I think you have a defective cluster but would need to verify that you have power to all these power fuses at the back of the cluster first. It is not communicating as it should. This is pretty common to go bad on these vehicles.
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Customer reply replied 7 months ago
I notice that my radio isn't working either
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

There is circuit breaker 2 in fuse box and may be bad and also fuse 51 powers radio. Check both of there. The circuit breaker also goes to cluster.

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Customer reply replied 7 months ago
I took out circuit breaker 8 and placed it in 2 and see if a difference. Since both are 30a....made no difference. 51 looks fine no issue.
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

You sent me the picture of door controls?

When did all these problems start happening? Were they all at once?

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Customer reply replied 7 months ago
Sorry wrong pic..within a month it all occurred...radio stop working...it would flicker. My battery was bad I was informed yesterday and replaced it. The major concern is that my odb2 won't read. Unsure if it all occurred at once. I don't think so.Normally if a vehicle is off you can still see the break light if you step on it or unlock doors/ turn lights on. Truck will not
Customer reply replied 7 months ago
https://www.justanswer.com/dodge/5h25w-dodge-ram-1500-4x4-obdii-port-not-getting-power.htmlThis person had same issue but found it was a fuse.
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

This all goes through cluster module and may have went bad.

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Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

Let me look at it and will get back to you in a minute.

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Customer reply replied 7 months ago
Ok
Customer reply replied 7 months ago
This light makes a sound. I don't have an alarm and it would stay on with the bad battery. Now since I placed the new battery it shuts off but blinks before shutting off when. Truck is on...Not sure if that helps at all.
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

i tried to see what they did to the other vehicle but it did not show what fuse they are talking about that i can see.

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Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

Do you see a push button in the fuse box or next to it that is resettable?

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Customer reply replied 7 months ago
Let me check
Customer reply replied 7 months ago
No I don't
Dodge Mechanic: Jaybird61, ASE Certified Master Technician replied 7 months ago

I will have to opt out for another expert that may be able to help you better. I an out of anymore help and do not want to hold you any longer. I will now opt out and when you get another response from another expert then you can respond back or it locks question back to me. Have a great Holiday.

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Customer reply replied 7 months ago
Thanks for the assistance sir, I know this could be so dam challenging.
Dodge Mechanic: Amedee, Dodge Technician replied 7 months ago
Amedee
Amedee, Dodge Technician
Category: Dodge
Satisfied Customers: 28,147
Experience: ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector
Verified

Hello and welcome.

Different tech here.

Do you still need help?

Would you be willing to speak on the phone?

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