what causes my 2007 pontiac solstice to jerk when slowing down. Hard jerks on 2007 Pontiac Solstice

when slowing down my car has a hard jerk as if the breaks are locking up,
I have diagnostic codes p00700 p2637 and p0014. How do I repair my car without taking it to the dealership?

Asked by for the 2007 Pontiac Solstice
I just went through this. The problem are engine solenoids, have them checked and the bad ones replaced.