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HOW TO: Add Digital Rearview Mirror

My BCM is 2021. I wonder if a 2023 will have that option in the BCM.
you won’t see it unless you choose 2023 body computer to connect to. Make sure the box for do not verify ECU is checked in the alfaobd settings.
 
the ecu box is not checked but when pressing 2023 it says my 2021
 
the ecu box is not checked but when pressing 2023 it says my 2021
That’s why you have to check the box that says “do not verify ECU”, so it doesn’t automatically connect as a 2021 when you try connecting as a 2023
 
You were right, I found it but in 2022 the bcm 2023 does not show anything to change or enable the cameras
 
Here are the instructions for installing the digital rearview mirror in the RAM.

Part List:
Mirror with 1 Video Input Channel, no FCW or ACC - 68448639AB

Mirror with 1 Video Input Channel, with FCW or ACC - 68448641AB

Mirror with 2 Video Input Channel, no FCW or ACC - 68519111AA

Mirror with 2 Video Input Channel, with FCW or ACC - 68519222AA

Center high mounted stop lamp with camera - 68551077AB

10' Fakra Z - Female to Female
Amazon.com[/TD]


Parts if you have a 2019/2020:
2021+ BCM - 68496414AD
Wiring Harness from Jimmy07

You only need one of the mirrors. Just choose the one that fits your vehicle and if you want to have 2 inputs or not. You only need the 2 inputs if you plan on adding another camera like cargo, trailer, etc. For the 2019/2020 you will need a 2021+ BCM and the wiring harness from Jimmy07. You can get a used one from a junkyard. You can then stash this under the driver's side dash or the front seats.

Installation is fairly simple. Replace the CHMSL with the new one. Run the cable in the headliner from it to the mirror. Replace the mirror with the new one. Connect the mirror, truck and BCM using the wiring harness. Start the truck and enjoy your new mirror.

2019/2020s will lose auto dimming side mirrors. You can swap your BCM for a later new one (not used), but you would need the dealer to restore your configuration. If you swap it yourself, you'd need to do it at the dealer because it won't work right until the restore is done.

For 2021+, use AlfaOBD to set the following settings for auto dim mirrors to work.

LIN & Misc: CRVMM Present to NO

CBC Config I/O Usage: RVDM Present to YES

Curious if you lose any other factory features other than the dimming side mirrors?
 

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