New to this forum but i am lost and need some help.
The alternator on my 09 G37s was not charging and i changed it today. Once i lowered it back down and went to start it it clicked for a second then stopped.

After charging the battery longer and a couple more tries with no success, my g wouldn't even go to acc .

So now when i get in the car with my intelligent key, the orange light saying it recognized the key is on as well as the red alarm light blinking. When i hit the push button to start car or put into acc nothing happens.

Key fob works and i can unlock and lock doors, set alarm and all that stuff.

Any help would be much appreciated, thanks

 

Hmmm. Do you think your battery is still alive? I believe unlocking the doors would function even if the voltage is quite low - but anything else, particularly cranking the starter would need a fully functional battery. I'd think about replacing it if you can because some batteries have difficulty recovering from a full discharge.

If you're battery is still good, I'd at least try disconnection it for a few minutes and then reconnecting while carefully checking the terminals, cables, and of course all the fuses - starting with the very large ones directly mounted on the + battery cable.

Your service manuals are here:
Index of /FSM/G37/Sedan/2009

By the way, if the car recognizes your iKey the light on the dash should be green not orange. Maybe THAT is the reason for your main problem?

 

Can you lock/unlock the car with the key?
If yes, then the orange key light on the dash may indicate a problem with the Steering Lock module on the car.
If there is a problem with the SL module, then the car won't go to ACC mode.