Check if OVP is the new upgrade
New -000 540 67 45
Old -000 540 52 45
If not , change it
Brake sw for ASR can not be checked for limp as it is intermitant contact problem.
Again , due to high use, low cost and fail rate , advisable to change it .
Other suspects are sticking cable and possible odd tire sizing/pressures.
Sizing probs on asr are ususally coupled with higher speed kick-out of CC.
Also, if yuu lift the EA from under the hood by hand , you will put the ASR into limp.