[brcidd]

Well let me answer my question myself--- seems the Tech II I borrowed shows a codes C0710 which is a steering wheel angle sensor code-- since no plugs are unplugged, I look at the "live" data- and steering wheel reads -526 deg when straight ahead-- whoops- I had removed the steering column to do the evaporator job and it must be vitally important to not turn the steering wheel out of synch with the column by 360 degrees. So I unbolt the steering shaft and center the steering wheel so it is straight ahead and near 0 degrees- with rotation now, left reads negative and right reads positive- and viola- the traction control and stabilitrac systems are happy again....I knew it had to be something easy- so always remember to not let the steering wheel rotate (relative to the column) when removing the steering column for any reason.

A Tech II is a marvelous resource- otherwise I'm flying blind in a case like this..