So I recently joined the g35 club, I got a 2004 G35 Coupe, and not long after buying the car all power lock functions seem to have stopped working. The key fob and the interior lock/unlock switch both don't work, though the key fob still makes the lights flash so I know it's alive. I don't think it's likely that both lock actuators went out at the same time, but I'm not sure what else it could be. Would there be a fuse that I could check?

 

Well yeah, usually when one system goes out like that it's a fuse. And the ones you should check first are #18 and #21 in the fusebox near the driver's left foot. (see below)

And hey, the factory service manuals for your car are here - thanks to the NICO club:
http://www.nicoclub.com/FSM/G35/Coupe/2004/
"idx.pdf" is the index...

 

^^^^
What he said!

Check fuses with your multimeter.
If the fuses are good check the connections in the BCM and the wiring harness as well as checking for a broken/missing ground

Was this vehicle a salvage or ever involved in a flood.?
Look for corrosion in wiring harness connectors

Telcoman

 

Nope, the car itself is in pretty fantastic condition other than this stupid problem, but I'll definitely get to checking the fuses for the power locks and the rest later today and come back with updates asap.

 

Bad news, I took it to a mechanic and both actuators decided to **** the bed. Guess I'll be using the key to lock my car for a while.