Hey guys I’m new on this, i read many forums but never registered. So bare with me,,, i bought this truck @as is” from a company i worked for. It was parked for 3 months and ran good, now i can’t start it, it won’t turn over. The only thing i noticed today is that the PRND321 is not illuminated anymore, nothing at all where it should indicate over the mileage.... any idea what to check for? I assume it’s not getting signal that the truck is in park or neutral and won’t crank... where do i start???
2007 Ram3500 6.7 cumm

 

There is a sensor on the trans that tells the PCM what gear you are in. Check the connection there first, If you can find wiring diagrams, see if you can put a jumper in the connector to convince the PCM the trans is in Park, see if it will start.

 

Ok, will try that tomorrow morning, i found some wiring diagrams online...
tks man

 

Let us know what ya find.

 

hey you.. i removed the 10 pin connector on the trs and cleaned it and i also jumped pin 4 and 9 who according to a wiring diagram should gave the ok to the pcm from the position it’s in and nothing, it stayed the same... i can’t see anything else that is missing except the prnd321 lights... the door open chime is a little weird do... it will start and stop whenever it wants for no reasons....

 

How is your battery???

Unfortunately, I don't know a lot about the newer transmissions, and even less about the diesels.

 

I am new to diesels also, i have a friend who knows about them quite a bit and he is coming Saturday to check it out, hopefully he can get it going
ill post the results!