Hi, I have my 2011 G37 coupe.
I had a problem with central panel, there’s black screen and A/C is stuck and blowing hot air. I’ve replaced all parts( a/c control panel, display, cd radio, av unit, climate module and check all the fuses and replace all fuse boxes, BCM is clean). My car is going to 4th electromechanic because everybody don’t know nothing. I’ve been struggling with this for almost a year and I got no ideas right now. Previous owner said that after he crashed, he switch some parts to his friend’s G, but never installed it - he said he’ll send me photos of this parts because maybe I have wrong parts( I checked on manual and everything supposed to be all right) but now he doesn’t reply.
Something strange happens when I’m plugging one connector to av unit (all gauges turns darker, start button doesn’t work, lights are still on even if button is on off and many strange things happen)[im sending photo of what connector is making that stuff]
Usb and lighters don’t work. When G arrived to me it has water under driver floor, I immediately clean and dry it up but maybe search for some flooded module or wiring? I’ve searched from the internet that the radio tuner is under driver seat in coupe because there’s no such thing in the trunk. Do you have any solutions or advices? I would appreciate your help because I have enough of this thing. Maybe I need to check by wiring through this connector from av unit?

 

Did you make sure the AC Amp is plugged in correctly? This is the white, plastic box that is mounted to the AV headunit. See this post. There are two connectors with YELLOW tape that MUST be plugged into the amp. It is, unfortunately, very easy to mix these connectors up.

 

Yes, I’ve plugged this connectors(blue matched). There’s no positive voltage towards av unit and there’s problems that I’ve been writing about when I plugs green matched connector to av unit