BD Diesel 1031312 Auto Transmission Control Module BD Diesel 1031312

The Allison transmission control strategy works very well, even allowing torque converter clutch lockup in second gear in some cases. However, in high horsepower applications lockup is sometimes inhibited due to increased torque converter stall speed. Because of this, auxiliary lockup control devices are required to reliably engage the clutch for racing or high performance applications. The BD Allison Lockup Controller gives you control over your torque converter clutch. The module is equipped with different automatic modes that will automatically engage the TCC when the truck is at high boost based on current gear or a set mile-per-hour. Additionally the module can be setup to use an override switch that will allow TCC operation at any speed as long as it won't stall the engine. TCC apply is firmer than stock but is cushioned by using PWM ramp up to prevent excessively harsh engagement.Allison transmissions (LML) utilize variable line pressure that adjusts to different engine load to reduce heat buildup in the transmission and improve fuel economy. The problem with this is that it drops line pressure after a shift, causing clutch slippage and failure in higher powered trucks. The BD module is equipped with a pressure controller that boosts line pressure up to 275psi when the engine is over 15psi boost and runs stock pressure under normal conditions to prevent harsh shifting.

Specifications:

Description_DES	Auto Transmission Control Module
Description_EXT	Auto Transmission Control Module; Lock-Up/Pressure Controller; Plug In Wiring Harness; OEM Sealed Connectors; Switches; Hardware;
Description_FAB	3 Automatic Torque Converter Lockup Modes
Description_FAB	Lockup Modes That Engage Based Upon Turbo Boost
Description_FAB	Enables Torque Convertor Lockup In 2nd Gear/3rd Gear
Description_FAB	Manual Lockup Switch That Uses Safe Engine Stall Protection
Description_FAB	Built In 275psi Line Pressure Booster Over 15psi Of Turbo Boost
Description_FAB	Leads To Increased Transmission Holding Power
Description_FAB	Plug In Wiring Harnesses
Description_FAB	OEM Sealed Connectors
Description_MKT	The Allison transmission control strategy works very well, even allowing torque converter clutch lockup in second gear in some cases. However, in high horsepower applications lockup is sometimes inhibited due to increased torque converter stall speed. Because of this, auxiliary lockup control devices are required to reliably engage the clutch for racing or high performance applications. The BD Allison Lockup Controller gives you control over your torque converter clutch. The module is equipped with different automatic modes that will automatically engage the TCC when the truck is at high boost based on current gear or a set mile-per-hour. Additionally the module can be setup to use an override switch that will allow TCC operation at any speed as long as it won't stall the engine. TCC apply is firmer than stock but is cushioned by using PWM ramp up to prevent excessively harsh engagement.Allison transmissions (LML) utilize variable line pressure that adjusts to different engine load to reduce heat buildup in the transmission and improve fuel economy. The problem with this is that it drops line pressure after a shift, causing clutch slippage and failure in higher powered trucks. The BD module is equipped with a pressure controller that boosts line pressure up to 275psi when the engine is over 15psi boost and runs stock pressure under normal conditions to prevent harsh shifting.
Description_SHO	A/TCntrlUnit

This Part Fits:

Year	Make	Model	Submodel	Notes
2011	Chevrolet	Silverado 2500 HD
2012	Chevrolet	Silverado 2500 HD
2013	Chevrolet	Silverado 2500 HD
2014	Chevrolet	Silverado 2500 HD
2015	Chevrolet	Silverado 2500 HD
2011	Chevrolet	Silverado 3500 HD
2012	Chevrolet	Silverado 3500 HD
2013	Chevrolet	Silverado 3500 HD
2014	Chevrolet	Silverado 3500 HD
2015	Chevrolet	Silverado 3500 HD
2011	GMC	Sierra 2500 HD
2012	GMC	Sierra 2500 HD
2013	GMC	Sierra 2500 HD
2014	GMC	Sierra 2500 HD
2015	GMC	Sierra 2500 HD
2011	GMC	Sierra 3500 HD
2012	GMC	Sierra 3500 HD
2013	GMC	Sierra 3500 HD
2014	GMC	Sierra 3500 HD
2015	GMC	Sierra 3500 HD