Hi I have an 04 Dodge Ram and and the "Ignition- Run Only" fuse keeps blowing everytime i turn the ignition on... It is the pink 30 amp fuse..
Does anyone know what this fuse does?? The truck still seems to start fine..
I did notice the AC controls seem non responsive.. not sure if this is related but i think it is..
Any help with this problem or suggestions would be GREATLY appreciated. Thanks for your time and help.
Just to verify that we are not going in the wrong direction, can you -
a) Disconnect the battery
b) check for continuity between the Pink/Yel at the ignition switch and Fuse 37. Also check the continuity between that very circuit and ground. I'm of the feeling the IPM has some strange wiring, so want to make 100% sure we don't chase ourselves in circles. LOL
You may have to disconnect some of the other connectors to get to C5. this is not a problem, as cycling the connectors is actually a good thing to do while you have it out. There have been many intermittent issues that have been corrected by this procedure.
That is bad news......unless moving the IPM moved the harness enough to remove a ground short.
Look along the harness and see if you can see where it might have rubbed through and shorted the Pink/Yel to ground.
Rats! Well, before I jump to conclusions, you'll have to reconnect C5 and run the ground test. I sure hope it shows open......IPM's are expensive. :158:
Possible....Hmmm....hadn't thought of that option.
Since I can't get drawing on the IPM, and still haven't found anyone to sell me a bad one to play with, I can't comment based on knowledge of it's internal wiring.
But it is electronic and a computer to boot, so....Yup....possible. LOL
The Pink/Yel wire from the ignition switch travels through a huge multipin connector (C219) on the firewall (AKA bulkhead connector) to the IPM and connects via C5-pin1.
Computer attitude aside, I am concerned that the problem could be in the wiring harness and/or the bulkhead connector, and the operation of removing the IPM pulled enough on the harness to relieve this ground short. It could be in the harness, as there are ground wires in the harness too. I could be at the bulkhead (far shot, but possible) where something got into the pins and caused this problem.
Right now I'm hoping it goes back together without issue, and the original problem never returns....but then again....I would not know for sure what the issue was. Rock/Hard Place. :dork:
ok after i put all the other fuses back in.. ground came back
i removed 36 the one that was showing ground on both sides.. and the ground went back away.. do you think it's just "seeing" ground but its not really ground??
because before when i removed 36 it still showed ground..
Fuse 36 is for the fan, so will likely look like ground, but for testing purposes, leave it out until the truck is running and Fuse 3 is staying intact.
you have NO IDEA how grateful i am to you.. if i was a billionaire you would have a couple million being sent to you.. unfortunately im not lol
but i put the fuse back in.. including 36..
and it showed ground but when i gave it ignition it stayed on power
the only fuse i have to put back in is the airbag fuse.. any tips on getting that yellow thing down?
isnt it REALLY late over there??
please email me or contact me somehow so I can try and reimburse you somehow.. maybe if you have paypal?? ill PM you my email so we can discuss that portion privately.
Thanks again SO much. you are literally a lifesaver..
The safest way to install the airbag fuses -
Disconnect a battery cable and touch it to the other battery cable. This will drain all the residual power in the system.
Then plug in the airbag fuses (since the system is void of power, you can fiddle with it and not worry about what might happen. Then re-connect the battery and test the truck.
Take note of the airbag check light when you first turn the truck on. I should light for a while.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
DODGE RAM FORUM
2.2M posts
201.9K members
Since 2008
We’re the ultimate Dodge RAM forum to talk about the RAM 1500, 2500 and 3500 including the Cummins powered models.