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I had the fuel pump procedure done with BCM changes active. I didn't lose any BCM settings because that module doesn't need to be updated. However, I would let your service advisor know you don't want the BCM updated even if it's out-of-date without discussing it with you first.
It is ok to cut the harness. Just connect both ends to a bus bar. This will give you run/battery power in the cab, and you will still have run/battery at the back.
I made a video on the 2019 AUX upfitter system. It shows how to utilize run, battery, and switched power in the cab. The video description also contains a link to a PDF.
I cut the looped wires on the gray connector and installed two bus bars so I could connect multiple devices to run/battery...
I have a 2019 HO/Aisin. I had similar transmission shifting issues until the dealer updated the Transmission Control Module (TCM) with the latest version per TSB 21-020-22.
I am posting this for @Thorvald
TSB# 18-067-23
TSB description
See below
Models and years affected:
2020 (DJ) RAM 2500 Pickup
2020 (D2) RAM 3500 Pickup
This bulletin applies to vehicles equipped with a 6.7L I6 Cummins
Turbo Diesel Engine (Sales Code ETL) or a 6.7L I6 Cummins HO
Turbo...
Does anyone have the Canadian 12.1 UAX update files for versions 39.7, 39.9, and 40.1? I tried the USA files, but they were rejected.
Message me directly if you don't want to share publicly.
I got tired of relying on my dealership for updates and service bulletins, so I became an authorized Stellantis aftermarket independent operator. I purchased a Mopar diagnostic pod, a Tech Authority subscription, a wiTECH 2.0 subscription, and wiTECH ECU flash tokens. I have been updating my...
Mine didn't show up on the website either. It only showed up in the wiTECH 2.0 software. Definitely have your service manager check the DCU module to see if it needs a calibration update.
I also don't see any listed on the Ram website for my truck.
However, I am an authorized aftermarket Ram repair facility. When I checked my truck with the wiTECH 2.0 software, it said there was an update for the DCU calibration per the service bulletin. I think the Ram web site is possibly...
In March 2023, Ram released service bulletin ZDF for “Service DEF (Diesel Exhaust Fluid) system see the dealer”. It affects approximately 62,000 vehicles in these categories:
2019-2022 (DJ) Ram 2500 Pickup
(D2) Ram 3500 Pickup
(DD) Ram 3500 Cab Chassis
(DP) Ram 4500/5500 Cab Chassis
NOTE: This...