Adding An Aftermarket Brake Controller To Replace The Factory Controller On A 2020 GMC 3500
Updated 07/31/2021 | Published 07/30/2021
Question:
how do you bypass the factory brake controller for and after market one on a gmc 3500
asked by: Elmer
0
Expert Reply:
When you add an aftermarket brake controller like the Tekonsha Prodigy P3 # 90195 to your 2020 GMC Sierra 3500, you will need to have the computer flashed by a GMC dealer to disable the factory brake controller. If you do not do this the computer will throw a trouble code and likely neither controller will work properly.
A Tekonsha Plug-In Wiring Adapter # 3064-P will allow you to plug directly into the connection on your Sierra.
expert reply by:
Bud M
0
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