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2020 ram 1500 Aux switch bank install

alex1978

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Hi folks, I'm looking for help with AUX SWITCH BANK. I've ordered ASBM and trailer brake control module online, installed and programed brake controller. To program AUX SWITCH buttons I've stop by dealership to flash ECM with LHL sales code, after technician connect to my truck, hi find 2020 isn't in the list and no option to add LHL sales code to my VIN only 2021 and up. Any ideas? Thanks a lot.
 

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Probably need to swap to a 2021+ BCM.
 
I know there are youtube videos about the install and making them work. I think some have had issues with them not working, while others have gotten them to work.
 

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