Originally Posted by VitViper

If you remove the factory ABS system you lose the wheel speed inputs as they are acquired over CAN from that unit. You can get them back in over CAN if the motorsports controller sends wheel speeds as 16 bit values. Or you can share the wheel speed sensors with the M1 ECU directly (in the digital inputs). THe TC needs at least 1 front and 1 rear wheel speed sensor to function.