Post by
marctronixx »
https://forums.nicoclub.com/marctronixx-u191356.html
Sun Jan 22, 2017 11:14 pm
the "AUDIO,VISUAL AND NAVIGATION CONTROLL UNIT" [sic] is the CCU i spoke about. "CCU" is not the proper nissan technical term for that (it means Camera Control Unit in television speak and I work in film and television).
when speaking about the backup camera:
it has the camera itself and the CCU which is this "AUDIO,VISUAL AND NAVIGATION CONTROLL UNIT" [sic] thingy.
i think i touched on this earlier but a quick troubleshooting thing is to put the car in reverse, and view the screen.
if you see the backup lines but no image, its possible its JUST the camera that needs replacing. the backup lines are generated from that CCU and powers the camera once it gets the proper signal from the BCM and TCM through the canbus.
if you dont see the lines and no image (black screen) its most likely the CCU. coujld also be the camera as well but since the cuu is not working you will have to get it repaired/replaced before you can test the camera.
and above all,
if the instrument cluster is faulty, it can send mixed signals down the can bus to the bcm and tcm ands cause other issues, so even though your cluster is working, you mentioned its flakey/intermittent, and this will also need to be replaced or you will /may continue to have issues.