P0748 on 1998 Cadillac Catera

Shift solenoid A is inside the transmission on the main control
(or 'valve body"). Typically inside the transmission oil pan. I TRY TO ORDER THIS PART CAN SOME ONE HELP IF IS CALL Shift solenoid 1 AND 2 I WILL BE SO THANKSFULL TO YOU

Asked by for the 1998 Cadillac Catera
It is called the shift solenoid . I got one for my wife's car at NAPA Auto Parts.