Hi i have a 2005 g35 sedan 3.5 awd. It was driving okay this morning until I wash the car at a local car wash. I drove off and by time I got down the street it started acting werid. The speed meter was dropping to 0 then jump back to the speed I was going but when doing so it had a kick. I pulled over at a local store and turn the car off and when I tried to start it again it wouldn't. I got it towed home and got the code read it showed u1000 p0462 and p1124. Also on dashboard it had no gear indicated the vdc,slip, brake, check engine soon, battery, and AT check lights were on when trying crank the car. But the weirdest thing is when I turn on high beam, turning signal, open a door, and emergency lights none of the dashboard lights for these appear. Why is it not cranking, does it has anything to do with faulty dashboard or the codes? Please help.

 

hmmm seems weird. i would assume maybe a connector or something got wet and shorted something out. i would let everything dry out and retry to start. might have to reset the ecu. if that doesnt work good luck looks like PITA.

 

It's actually been a week now. I did see a burnt pigtail connector but other then that it all seem same I check all fuse as well. The car seem like it turning over but won't catch. I tried applying started fluid it nearly started.

 

I have similar problem with my G35 had code u1000, for me was easy fix,the problem was ECM don't have good ground contact, check my early post how I fixed this problem. good luck

 

Would the ecm not having good ground contact prevent the car from starting?

 

Yes, my car would not start, and vdc, brake ,check engine light ect... all came on, I think there're 4 screws that held the ECM to the metal frame, clean and lightly sand the area to give good ground contact.. while you at it clean negative cable that contact to chassis ,that is all and solve my problem...