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Old 03-12-2017, 04:50 PM   #2
vannatta20
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Join Date: Oct 2011
Location: Las Vegas, NV
Posts: 290
Re: Gen V Engine swap info

13-Body Control Module

It is needed. This is mostly only needed for the brake pedal sensor, tap shift, power modes, and communicates with the ECU and TCU. It tells the transmission how much brake is applied and downshifts and rev matches accordingly. A tap shift switch can be installed as well but its uses multiplex signal and is complicated. The power mode is just a analog ground signal.
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