Now the following is my assumption and NOT based on any one document. If anyone knows better, please chime in, If it is anywhere close, chime in.
I think it would be a cool addition o add padel shift to Cobalts.
Now what i am trying to learn is the 04-08 Malibu tap shift.
Please correct my understanding.
BCM is programed to monitor the switches (gear shift & paddles) based on singles, instructs TCM to shift (up, down, or stay) or execute its normal programbased on shift cable, & PCM input.
The BCM is programed with a Tech2 but not as a Cobalt (product code A. I would correct this if I could see the old photobucket images)
Bcm need to be programed as a Malibu. What product code?
The TCM may need to be loaded with a Malibu 4T45E table values.
For better transmission, the valve body & solenoids may need to be upgraded to reduce shift time (transgo kit )