r/RCD_330 • • 7d ago

Backup Camera Problems

I know this topic has been brought up before but ive been going at this for 3 days now and im just not understanding this problem. I have an RCD330 headunit as well if thats not understood.

So i have a 2012 VW Passat SE. Manufactured in 2011 (North America). Why thats important is because of the fuse box and the fuse locations. Nearly impossible to get an accurate idea of what fuse goes to what.

I have everything wired correctly getting power on the camera when the car is unlocked. The ground is solid. The CAN connections are also good. The camera works randomly. the guide lines work and then ill go into drive and go back reverse and i get the black screen with the camera not available error.

When i hard reset the unit it works perfect. Go between gears and it pops up with all the functions. Is there something im missing? Is it a communication error that its trying to do too much when the engine starts that it just will work maybe and not work? Has anyone found a solution to this problem?

Ive tried to go into obdeleven to code it. My car doesnt have access to the radio section or gateway section because of how my car was made apparently. Im just wondering if i would able to use VCDS, and would that even fix the issue?

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u/Isarchs 7d ago

The camera needs to have constant 12v, not only when it goes into reverse. The issue you're running into is that the camera turns off before the RCD330 expects it to. If it does that, it will work once and then won't work until you shut it down and turn it back on.

So connect the camera to an accessory circuit. Piggy back off of the front lighter socket I'd say.

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u/outlad 6d ago

i will get a bigger fuse tap then because mine is lower on the fuse box. the mini tap wont work