2003 G35 won't start.
Diagnostic codes :
P1212
P1612
U1000
U1001
I jumped the gun and replaced the battery - (not it and the old one was good). I checked the battery terminals, grounds in the engine bay and the interior I could find. Several months ago replaced both cam sensors and the crank sensor. These codes have me baffled on what to do.
Any help would be appreciated!! 97dyna

 

P1612 is the NATs system

Some more info on your other codes

http://www.titantalk.com/forums/tita...001-p1065.html

Google around, there is a bit of info on those codes.

Good luck

 

I had U1000 and U1001 recently I think, I think. I dont have a great memory but Im really trying here. Check all your grounds. I had a problem that was throwing a CEL and the car would shut down mid drive. It was a loose ground on the engine bay (Dealer replaced the throttle body, dont go to them for work any more, just parts)

I cant remember if that was the same CEL though.

 

Everything I have read points to an open ground. I have cleaned and tightened the engine bay grounds that I can see from above. Pulled panels and looked for grounds under the dash, both sides, did not find any grounds. Pulled the radio, from the dash, nothing there. I'm going to look under the car today.

 

My loose ground was underneath the 350Z engine cover. Bolted directly onto the engine. I loosened it myself earlier (Doh) when I was cleaning up my grounding wire kit, and I forgot to put them back.