Crank no start issue someone has cut the converters off?

DAVID_LEE

MEMBER
2011 NISSAN FRONTIER
4.0L
6 CYL
4WD
AUTOMATIC
225,000 MILES

I bought this truck with a crank no start issue someone has cut the converters off of it so I was gonna make sure I could get it running before pouring all this money into it ok so I first put a code reader on it it was showing camshaft sensor bank 2 I changed the sensor and erased the code but still crank no start I ran the code reader again no camshaft code but now it’s showing a U1001 no comm with the tcm ok so I borrow a buddies code reader it’s showing the same cam sensor that I changed and the tcm code and two converter codes when you crank it the rpm gauge moves you can unplug the crank sensor it doesn’t move any more so I know it’s atleast communicating me myself I’m thinking it’s the ecm what do you think?

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
48,296 POSTS

Yep, I think the ECM might be bad, but with the systems on I would check the fuses for power this guide can help, (ignition on)

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If all fuse are okay I would try replacing the ECM, you can get a preprogrammed unit by searching Google or Ebay. I can tell you I have seen the IPDM go out on these trucks and cause this issue as well, you will see many fuses without power letting you know this is the problem. Check out the images (below). Please let us know what happens.

Image (Click to make bigger)