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Hi, an update.. so after 3 mechanics, it was the meter/ac amp that wasnt working, the first mechanic just said to take it to the dealer, after the 2nd mechanic i thought about buying one, but decided to take it to the 3rd one just to be done with the problem, infiniti/nissan specialists, referred by the 2nd one... they charged me $330 just to check it, they said a used unit with 1 year warranty was $300, so that wouldve been $600.. luckily i had already searched for one that i got for $40 with the radio included... after installation the car turns on/off normally now, the cluster is working too, but now i have no radio and none of the buttons work, the AC turns on after a few seconds and stays like that, cant turn it off or do anything, only button that works is the emergency lights.. before i took it to the 2nd mechanic the radio was working, they said they swapped some cable and in 1 position the radio worked but not the AC, and in another position the AC worked but not the radio.. so im wondering if the damaged something else doing that... there was a blown fuse on the floor from the 3rd mechanic, i replaced all fuses from the lower driver side since the old ones are not very clear to see if they were good or not.. and the audio one by the battery, i saw a lot of posts here about the exact same problem fixed usually by a fuse.. another said disconnecting "rear center speaker" fixed it but idk what speaker they were talking about.. i swapped the new radio just in case but didnt work either..
Could it be possible that the new module is not working? i really bought the radio, it just had the unit mounted on top, looking for just the unit some can go from $75 to $200.. if anything ill have to take it to the guy again, probably gonna be very expensive, mostly GTRs there..
yes it does.. its 27760 jk700 although there are another numbers below that are different, according to the mechanic, as long as the top one match then the others shouldn't matter.. so even if the part number is the same it has to be specific for my 37S coupe? the radio i thought it could have something to do and since i had it there i thought it was worth a try..
Edit: the unit came from a 2008 G37 Coupe with Nav just like mine
What matters most is the last 5 digits of the part number which identifies the vehicle the part is applied to. In this case JK700 which tells me it is for a pre-2010 G37.
So, as long as the 27760-JK700 matches what was in your car before this fiasco began, you should be good to go. The odds that the "replacement" amp is shot is low especially being that everything else works now.
Originally Posted by JUANPCM
...before i took it to the 2nd mechanic the radio was working, they said they swapped some cable and in 1 position the radio worked but not the AC, and in another position the AC worked but not the radio...
... sounds to me they don't know which end is up, IMO. What cable?
When you changed radio units, are you using the same switch panel (the one with the clock)?
Does the radio/NAV headunit, even the screen, exhibit any signs of life? What happens when you press any of the NAV buttons (the dial one)?
Again, we are flying blind here. I am stymied that you are having all of these issues from simply swapping out a dashboard.
Sadly yes, all started after swapping the dash.. yes, the part number its exactly the same, it is a 08 G37s Coupe.. everything works but the radio and AC, well, like i said the AC works but cant control it..
Yeah they dont know where the cables go.. thats what they said and thats why they sent me to the 3rd mechanic..
Yes, im using my panel, the old one, the radio came without the faceplate, just head unit and meter/Ac amp.. already bought one.. because the 2nd mechanic scratched some of the buttons..
Nothing happens, only button that works is emergency light.. AC is always on at 75..
I don’t remember exactly, im on my way home and i can check, but the screen is on and i think only showing the temp at both sides, i had my head unit installed, just installed the meter unit.. since it didnt work I installed the new head unit, but pretty much the same thing..
It has some reminders, i can clear them by pressing the screen this is how it looks after clear them, the temp is not showing, i think it was my head unit showing the temp
Based on those images it seems the headunit is working which then leads me to the preset switch panel (the clock one). Out of curiosity, do any of the switch LED's light up? (A/C, defrost, fresh air, etc.)? What about the steering wheel / voice command switches?
You can try to enter the diagnostic mode (thread) and see what the status is and run some tests, however, if the switches are non-responsive it might not work. If you do access the diagnostic menus, DO NOT SELECT "RESET," or "INITIALIZE SYSTEM SETTINGS", either press the BACK button to exit or turn the car OFF.
I am still leaning toward either a power or a wiring issue. With all the manhandling that has been done what with the dash swap and ironing out the issues, it wouldn't take much for a wire to get pinched/ cut/ etc. This would require physically checking each wire for the appropriate signal value (based on the factory manual).
Unfortunately, there is not too much else I can think of for you to check.
Possibly a damaged ribbon cable from the radio/Ac controls?
Possible, but even if that ribbon was damaged, OP should still be able to control the HVAC system. Being that the AC has failed-safe to a constant 75° leads me to believe there is a CAN/AV-COM issue (wiring) between the preset switch panel (the clock one) and the rest of the car. Or something else entirely...
That said, OP can try performing the multifunction switch diagnostic which would tell us if the switches are good or not:
Also, as mentioned above, if OP can access the diagnostic menu and check the AV-COM status we would know more, but... without thorough testing, which we can't do here, there's just no way of knowing at this point.
Last edited by ILM-NC G37S; 05-18-2022 at 07:50 PM.
so the radio is working, the buttons are not lighting up, but i could pretty much doing everything with the steering wheel..
i can now see the AC at 75, i was thinking that cable too, because is the front panel and the one around the screen that are not working, those 2 are connected with that cable..
i can try that the method on that image, but it seems none of the buttons there are working
If the preset switch panel (the clock one) does not work, then the multifunction switch (the dial one) will not work either. The multifunction switch has nothing to do with HVAC functions.
The hazard lights work so that tell me the multifunction switch & ribbon are probably good.
Do any of the buttons light up when you turn the headlights on? (ie. nighttime illumination)
Last edited by ILM-NC G37S; 05-18-2022 at 08:47 PM.
For the "button test, " key from OFF to ACC. Engine OFF.
My bet would be on the preset switch panel failing. These have a (small) history of going bad and perhaps with all the connector pulling and fuse popping something in the switch panel shorted out.
No guarantees, but everything points to that being the culprit.
Last edited by ILM-NC G37S; 05-18-2022 at 09:14 PM.
05-18-2022, 11:46 AM
