Diagnosing camera is issue.

[TDot]

Having very odd and annoying backup camera issue.

This winter I started noticing issues with the backup camera. It would look really dim and like wavy like an old tube tv going bad, mostly in the mornings. I attributed to the cold winter, because it would warm up and display fine eventually. It happened today now.

The thing that has me perplexed is when I tap the nav screen when in reverse the camera image would jump. There's absolutely no reason that should happen. I get out and tap the camera the image would jump as well. Again, no reason why tapping the screen and camera should produce the exact same thing. Switch to park and tap the screen and no jumping. I get fed up and go into the diagnostic mode and the camera image is showing perfectly. I run the diagnostic test and no errors pop up. I come out of the diagnostics and everything is now working perfectly, even tapping the screen and the camera while in reverse nothing is jumping.

Thoughts on what's going bad?

[Ilya]

Hmm...that's an interesting one for sure. Perhaps your last tap help a wire seat better and thus all the test passed, etc.? Is it only the camera or do you see the waviness in other screens?

I have a sporadic issue with my '11 where the screen flickers ever so slightly (I can barely detect it but I see it) every now and then.

[TDot]

It looks like going into the diagnostic screen didn't actually help, it was just a coincidense. I did it again and it didnt help.

Yes this ONLY happens on the screen when in reverse showing the camera.

What I did notice this time around is if I apply pressure to the screen with my finger while the screen is dim and dead in reverse, the screen brightens up and is clear. Which again makes no sense because tactile interaction with the screen when the camera is showing should not produce any type of results because there is no reason to press the screen at that Time. Usually I would venture to believe the camera was bad or a wire short is causing this if it wasnt for pressing the screen corrects the issue. It's not the screen because it only happens in reverse. I cant see it being the module because again,pressing the screen corrects the issue and the module...I believe...shouldnt be getting or looking for any type of tactile feedback.

In reverse while the screen is acting up.



Applying pressure to screen while in reverse.



The screen in park during the time it's acting up while in reverse. (No issues)

[Ilya]

Maybe the camera cable in the back of the screen is loose so when you push it, it pushes it in and thus works better? This is the only thing I can think of...you're just applying pressure to a connection back there. Only way to know is to take the screen out and reseat the connections.

[TDot]

For the past four months things have been getting worse with the backup image. Everyday there are issues. The screen is always dark, scrambled, or blacked out when in reverse. For the past two days I had the heat on full blast 90', and for the past two days...the only two days in the past four months...the backup screen looked crystal clear EVERYTIME I put the car in reverse. It even lookd better than the image I have in the previous post with my finger on the screen. It's either the display unit or the av control unit. I tested out another camera control unit a month ago and that didnt change anything. It's a matter of which is cheaper to try first I guess, and where to get them with a return policy.