07 m35x nav screen freeze then goes out, radio stops working, heat/ac stuck at last settings

[arcolino]

I have an 07 m35x my nav screen freeze then goes out, radio stops working, heat/ac stuck at last settings. Happens 5 to 10 minutes after I get in the car in the morning and the screen does not come on at all at lunch time. temperature controls stuck at last settings (cant change them) radio goes in and out. per the dealership screen issue. I had that switched out same issue. I researched and saw that it is the "control module" but how do I know for sure? I also saw that a bulletin number itb07-038a that came out about "center display screen image frozen" "IF YOU CONFIRM The image on the center display screen (front display unit) will not change (is frozen) when operating the radio,
A/C, and/or navigation system controls" this is similar to the problem I am having but not exactly. When I spoke to the mechanic about the on going issue and what I found in my research I asked him if it could be the controller vs the control module. he said control module. How do I confirm what each of those devices does?

online it says the replacement part for control module is part number 25915-EJ37B for the 07 m35x infiniti. does the part 25915-EJ36C also be a replacement part?

[tbright]

I think either will work: 36c was replaced by 37b.
(http://www.infinitipartssuperstore.com/ ... -ej36c.htm)

25915EJ37B is the Control Module/DVD ROM in the glove compartment and 28346EH50A is the Controller in the dash.

http://www.discountinfinitiparts.com/pa ... mCallOut=1

Right? I hope the prices are a typo looks like Ebay might be your friend.

[Rogue One]

The dealership should be able to test your system to determine which part is failing. As for which of the two part numbers is the correct control module part number, you can go to Infiniti Parts Deal, and enter your VIN to search for the correct part for your vehicle.

[arcolino]

@tbright correct, the replacement part is at a ridiculous price and it’s on 6 different websites with the same 3000.00 dollars plus price (crazy!) for that part!? already checking ebay. that’s why I am trying to do my due diligence on the part before taking it to the dealership.
@rogueone they already tested and said it’s the screen but all the symptoms were not given to the tech such at the initial testing, they go by symptoms as well as the test to make their determination. Other symptoms hvac controls stuck on last position, radio cutting in and out, when the screen goes out, so three things happening at the same exact time each and every time. I read bad screen does not affect other systems, plus switched out screen and same exact symptoms which is rare! that infinitipartsdeal.com helped, its saying of all that is on ebay claiming to work in the 07 m35x only two came up in green “this part fits the vehicle you selected” the 25915-EJ26C and the ridiculously priced replacement part 3k plus part number 25915-EJ37B you would think the part number that is closest to the replacement part would be it, part number 25915-EJ36C but no the ipd.com site says “sorry this part does not fit the vehicle your selected” another one one ebay saying it works for the 07 m35x 25915-EJ20E gets a message that says “cannot determine if this part fits vehicle” I am betting currently in the car is the EJ26C but no way to tell until the tech pulls it out. The miss diagnosis by the dealership has cost me time and money.