2025 Vista 29V Rear Camera Harness Access

[nschoenebeck]

Thank you for this Norbert. It definitely helps. I also determined it is the cable. My equipment indicates an open 50' from my transmitted source. I think the cable is 20 meters long which places the fault pretty close to the end of the cable, same issue you had.

Is your system a Sony also and did you plug in the cable you purchased directly to the switch? How did you cross the Winnie P/N to the one you bought in order for it to mate with Winnie connectors?

Thanks again for the response.
Frank

Hi Frank..

it took me a little while to research this as available documentation is not perfect... the rear camera is connected to a video switch in the dashboard through a short adapter cable and the long 66' cable. the adapter cable was no issue for me.. (theoretical this was another potential point of failure)... in my case the 66' cable was the issue... I did order a camera and the cable to test.. there is no clear cross reference between the Winnebago p/n and what I ordered.. but it was the exact part needed. Ordering it through Winnebago would have taken too long so I used a small company in LA, RV CAMS... very recommended. The original camera had a manufacture part number attached which matched the one I ordered.

These are the 2 items i ordered:

https://www.rvcams.com/p/15/RV-PCAM-BS2.html

https://www.rvcams.com/p/15/RV-HAR-PCAM-GX66.html

The camera I kept as a spare.. was not needed to fix my issue.

Yes I do have a Sony system in the coach... it is connected through an RCA video cable to the video switch in the dashboard. The switch is getting its video feed from the left and right, as well as the read camera. I attach the wiring diagram showing the switcher and the adapter cable.

https://www.winnebago.com/Files/Files/Winnebago/Resources/Diagram/2022/000218103.pdf

let me know if I missed anything... Norbert

 

[Mosnowman]

Looking for help accessing the rear view camera in a 2025 Vista 29v. It looks like the top rear roof trim has to be removed to access the wiring and remove the camera. However, I don't want to remove, possibly destroying the weather seal that probably exists for this large trim piece. Has anyone did this? Read further for background.

The coach was purchased in February and still under warranty. The dealership is trying to fix but mostly likely won't be able to finish in time before a planned cross country trip in 3 weeks. They proved the problem is in the harness which is very strange. The camera worked perfectly for about a month then gradually started to loose video for short periods of time, getting worse until now not working at all. The tech claims he removed the camera and plugged it in directly at the video switch under the dashboard where it worked perfectly. He also claimed the small cable felt warm to the touch which might indicate being pierced by a screw during the coach's assembly. Since I am a techie as well, I'm also giving it a try by trying to find the source of the problem. The dealership just wants to replace the harness which I'm sure is not a stock item (Haven't heard back from Winnebago yet) which is a major repair and not likely to be completed soon. Therfore, towing a vehicle for several hours a day for most of the summer, I have no other choices. I have tried two wireless cameras with solar powered batteries as a temporary measure but returned them both. Despite their ratings and good reviews, they are simply not reliable for that kind of demand. Solar can't keep up charging the battery for operation more than 5 hours a day. Reception that far away is also full of interference and dropouts.

Looking for help or other recommendations.

Greetings Frank,

I know this probably isn't that helpful, and I'm tech challenged, so please take this with a grain of salt. I purchased a new 2023 Vista 29V and had the exact same experience. Camera worked fine for a month or so, but after bouncing down those great interstates it started cutting out and then coming back on to the point of driving me nuts. Took it back to Lichstinn in Forest City where I bought it, and they ended up fixing it under the front dash. Loose wiring, or harness issue of some sort was the explanation. Anyway the only reason I posted was to let you know it seems to be a very common problem with our Vistas based on conversations with others. For me it turned out to be more of a simple fix than I expected. Good luck and safe travels...

 

[AZFrankP]

Hi Frank..

it took me a little while to research this as available documentation is not perfect... the rear camera is connected to a video switch in the dashboard through a short adapter cable and the long 66' cable. the adapter cable was no issue for me.. (theoretical this was another potential point of failure)... in my case the 66' cable was the issue... I did order a camera and the cable to test.. there is no clear cross reference between the Winnebago p/n and what I ordered.. but it was the exact part needed. Ordering it through Winnebago would have taken too long so I used a small company in LA, RV CAMS... very recommended. The original camera had a manufacture part number attached which matched the one I ordered.

These are the 2 items i ordered:

https://www.rvcams.com/p/15/RV-PCAM-BS2.html

https://www.rvcams.com/p/15/RV-HAR-PCAM-GX66.html

The camera I kept as a spare.. was not needed to fix my issue.

Yes I do have a Sony system in the coach... it is connected through an RCA video cable to the video switch in the dashboard. The switch is getting its video feed from the left and right, as well as the read camera. I attach the wiring diagram showing the switcher and the adapter cable.

https://www.winnebago.com/Files/Files/Winnebago/Resources/Diagram/2022/000218103.pdf

let me know if I missed anything... Norbert

Thanks Norbert. I'll give it a go and let you know. Already in an email conversation at RVCams through another recommendation. This forum is awesome. I'll post results when done.
Frank

 

[Hermes2]

FWIW, I've a 2021 Adventurer 29B. Same floorplan as yours. Havent had any issue with the backup cam. First thing I did was add a wireless camera setup to monitor our toad and traffic. The camera is wired into the headlights for power, so, always on. Since then we've covered 40,000 miles without a hiccup. The wireless cam works very well, although I think its starting to show some "burn in" from long use.

Here's what I used. Amazon.com

Here's what it looks like.

 

[Morich]

To review it seems your test equipment says there is a problem at the end of the cable. When I think of cables, where I find most trouble on long or short cables is at the ends!
And many of those troubles are simple things like plugs not fully set or loose.
But I think you mentioned this problem started and then got worse over time?
That certainly makes me jump to one of the most common wiring problems in RV!
We get a lot of corrosion and it is one thing that DOES often build gradually and it is at the cable ends where there is a connector!
You seem to have done some of the hard things but I would first want to check the simple stuff like opens, grounds and shorts in that cable. I look at this cable as a set of simple wires, maybe one of them is an outside braid of some sort as a shield.
If contact cleaner and looking at the ends is not helping, I would default to checking each wire is good from one end to the other.
I would have to invent some way to get contact at teh connectors on each end, depensinf on what form you have. Maybe it needs a pin of some shape to get a test point brough out to connect the meter and some alligator clips on a jumper, but than is certainly going to be easier than replacing a cable the length of the RV!
I favor checking for ground on any of the wires first as that is a semi-simple one man job to probe each pin at one connector. Second, I would verify there are no opens. This quicker with less running back and forth if you can get a helper for the far end. Put a ground on one wire at one end and see if the person at the other end see a ground show on that wire. While that ground is left there, have the far end check for ground on more than one wire. That will let you know if there is a short beteewn wire one and any other wire.
If you find no ground, shorts, or opens, the cable is likely good and you have to consider other parts, but right now it seems your testing says there is a problem at the connector at one end!