edehosse
Active Member
I see on a lot of the posts about calibration, the MX+ seems to be the interface of choice. Has anyone connected using the OBDLink EX (USB) interface?
Hi, I'd be interested in that CVPM - unless you're saying the up grade to UC5 is worth it! Was looking into that too but seems like all it really adds is wireless CarPlay? (I currently have the 12" UC4).I just successfully calibrated my CVPM after upgrading from UC4 to UC5 in my 2019. I had to get a 22+ CVPM to play nicely with the UC5 so I bought a new one and had to calibrate it via AlfaOBD. All of the info in this thread, plus a couple of assists from Jimmy07 and I finally got it done after 2 days. A couple of pointers (most of this is already elsewhere in this thread) that helped me out:
- The front camera was the hardest for me to get calibrated. I was able to get it done on the road in front of my house, which is unmarked (just a residential street in a neighborhood so no center line and no side lines). When doing the front camera, go as slow as the test will allow (basically idle at 2-3 mph). Make sure you're rolling before start the test. Also shadows seem to affect it, so try and do it in a clear area with uniform light.
- The right, left, and rear cameras seem to do better in a parking lot with lines/stripes on the road. I tried endlessly yesterday to get these cameras calibrated on my street but gave up after about an hour of trying. Today I went to a parking lot that had both a center line and parking spots (see image) and the right, left, and rear cameras all calibrated first try. For the right and left cameras, I used the center line to calibrate those, and for the rear I straddled the center line. I couldn't get the front camera to calibrate here because there were a lot of shadows. I noticed every single time I went from a shaded area into a sunny area the test would fail.
- I'm 99% sure the CVPM will hold successful calibrations until/unless you run another calibration on that camera. This morning I calibrated the right/left/rear cameras first then drove home and calibrated the front on my street.
View attachment 177531
In AflaOBD (android version) my procedure was: connect to the CVPM, read faults, clear faults, disconnect, reconnect, read faults, clear faults, then run the calibration on each camera individually. SGW bypass was in the truck. The slower the better, the front did 2-3 mph and the sides/rear I kept it at or below 5 mph.
Side note: if anyone is looking to add the surround view to their UC4 system, I have the stock CVPM from my truck (P/N 68318033AG) available for sale, already calibrated!
Anyone done this on a 2024 3500?
I have a 2021 ram 3500 HO Rambox Cummins Limited. I already had the 12” screen with surround view and trailer SV. I bought an upgrade to Uconnect 5 from Infotainment. They told me I would need to upgrade the CVPM to a newer one (56029967AF) to get the surround view working. This would require calibration of the cameras. The problem is, they now tell me they have been unable to get the cameras to be recognized in the new radio with alpha OBD. Very frustrated that I was told I would be able to calibrate the cameras with alpha obd after the install.
There are no soft keys available on the radio for cameras at all so I cannot get to the calibration in alpha OBD. Any suggestions would be appreciated.
Not well versed on the use of the MX+, but I'm assuming your using an OBD2 security gateway adapter (Y-harness)?Still no luck, I get "Failed. Conditions not correct or request sequence error." Everytime on every camera. I get this image after clearing faults, then fails as soon as I start the calibration. Do I need the MS-Can Blue adapter? I have the MX+ plugged into my gateway bypass, if it's not plugged into the bypass I get an error say it can't communicate with the CVPM. I'm at a loss.
Ahh. Gotcha. Sorry but I don't have a clue on that one. I lucked out and had each camera calibrate with no errors. I'm using a wired EX adapter though...I am using a gateway adapter. I was moving the correct speed, and never get to disconnect and reconnect between cameras, because I can't even get 1 camera to run a calibration. I do disconnect and reconnect after each failure. I only get that view after clearing faults as soon as I attempt to calibrate, it fails and goes back to all black around the top down view, and no backup lines.
I don't see why not. Should be the same as previous years.Is it possible to add these to a new '24 Bighorn?
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They never offered in the Bighorn. But I have a 2020 Bighorn and added it.I wasn't sure since they stopped offering it in the Bighorn. You never know when they may make a change where the BCM won't see the module...
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