When this code kicks in usually on accel from a lite it goes into a limp type mode and shifts are far apart, the vehicle will go 58 mph, painfully.
I have changed the battery, starter, alt, brake pedal, map sensor and throttle body.
No other codes present however the dash shows stabilatrak.
Cleared the code and reset the computer, may last a day or so.
Ty for any help.

Tags: chevy, , po697

Update: were replaced the transmission has it had 200k on it.
The same issue came back one day after install.
Agh....

I have determined there must be a power supply issue of some sort.
Got schematics and am pouring thru them.
The trigger seems to be from a stop, then hit the accelerator, vehicle goes into limp
mode and sets the code immediately.
Will keep you posted.

Appreciate that however not the problem.
The update right now is I have re-done all the ground cables and ends.
My latest driving has only set the TCM comm code ???
May try and re-flash the TCM and see how that goes.
I will keep you updated.

Final post..for the most part it was the ground cable, I re-did all of them.
The finishing fix for the trans was getting it remarried to the ECM.
Chevy admitted some issues with the power cables as well.
Always always always check you powers and grounds first.
Ty

I wish more people would tell us the solutions to there problems.
Hope I start a trend....it helps.