The sport light flashes as soon as I shift into drive. The code I retrieved was seven(solenoid A lock up). I removed solenoid, cleaned it, and tested it. I put it back on, cleared the code. And I still have the same problem. Do I need to get a new solenoid or TCM or other? Any suggestion will be appreciated.

Thank you.

 

Test the solenoid, it has one power lead and the base is ground.
When you energize it you should hear a STRONG CLICK.

 

I energized both solenoids and they click strong.