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Edward
Edward, Service Technician
Category: Dodge
Satisfied Customers: 2874
Experience:  20 + years experience on various makes and models.
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I insert the key in my 2012 2500 and when I turn the key

Customer Question

I insert the key in my 2012 2500 and when I turn the key nothing happens
JA: Is the car in "Park" or "Neutral?" Do you know if your car has a "wheel lock" feature?
Customer: I just replaced both batteries and it didn't help the problem
JA: Are you fixing your 2500 yourself? What have you tried so far?
Customer: tried jump in and charging batteries that didn't work so I replaced them and it didn't help and it won't start in park or neutral
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 4 months ago.
Category: Dodge
Expert:  Edward replied 4 months ago.

Hello and thanks for your question. My name is ***** ***** I will do all I can to help.

Expert:  Edward replied 4 months ago.

When you turn the key on, the instrument cluster lights up like it should, the headlights are bright as usual? Just want to make sure there is good battery voltage available. Any other odd electrical symptoms happening besides the no crank? thanks.

Expert:  Edward replied 4 months ago.

And what make is this 2500? and model. thank you.

Customer: replied 4 months ago.
Ram longhorn diesel
Customer: replied 4 months ago.
Lights are fine head lots strong power windows and locks work
Expert:  Edward replied 4 months ago.

I follow you, When you just turn the key on, Do you see a flashing red light? any security lights on with key on? Did the alarm go off recently?

Customer: replied 4 months ago.
No no and no
Expert:  Edward replied 4 months ago.

Alright, I'm pulling the starting system wiring diagram now.

Expert:  Edward replied 4 months ago.

Alright, here is the diagram, you see fuse J 17 up top there. its in the fuse box under the hood, can you check that one for me?

Expert:  Edward replied 4 months ago.

Or, if you have a 12 volt test light, the small wire that is the YELLOW/GRAY wire that goes to the starter motor, it should be HOT with the key in START position.

Customer: replied 4 months ago.
Fuse is good
Expert:  Edward replied 4 months ago.

If you don't have a test light, I have gotten somebody inside before, have them HOLD the key in START position, and then smack the starter motor with a hammer a few times. Sometimes if the starters jammed up, it will free it up to crank.

Customer: replied 4 months ago.
No luck hitting starter
Expert:  Edward replied 4 months ago.

Is that box labelled to where you can see which relay is the starter relay, it's in position K5 fyi. I'd like to swap it with another one.

Customer: replied 4 months ago.
Ok switched it out
Nothing
Expert:  Edward replied 4 months ago.

I'm sorry it's K3. not K5. Swap k5 with K11. Refer to this diagram.

Expert:  Edward replied 4 months ago.

I mean it's K3, not K5, I'm sorry, swap K3 with K11. and then try it. forget about K5.

Customer: replied 4 months ago.
Ok still nothing
Expert:  Edward replied 4 months ago.

Alright, do you have a volt meter or 12 volt test light by chance?

Customer: replied 4 months ago.
Not with me I'm in a parking lot
Customer: replied 4 months ago.
I think I'll just call a tow, I was hoping it was maybe something simple
Customer: replied 4 months ago.
I'm on the road so my resources are limited
Expert:  Edward replied 4 months ago.

I understand completely, It's got 5/100K powertrain warranty still left or you've got over 100K on it?

Expert:  Edward replied 4 months ago.

Try a spare key as well if you have it.

Customer: replied 4 months ago.
Ok thanks I'll try that
Expert:  Edward replied 4 months ago.

If there is any warranty left on it, you can try 1-***-***-**** Chrsyler 24 hour roadside assistance. Give them the VIN and see if it has coverage. Best of luck . Thanks.