Question1996 cadillac deville 4.6 northstar.
Tom, how do I clear out the service transmission code PO741 TCC. The tranny seems to run fine and I have had it checked out. Thanks
AnswerRe-enter into diagnostics and after the code displays you will see PCM.
2. Push and release the HI (^) button and you will see DATA
3. Continue pushing and releasing the LO (v) button until you see CLEAR CODES.
4. Push and release the HI (^) button and you will see CODES CLEAR.
5. Wait 3 seconds and turn OFF the ignition.
This will clear the code from the computer.
Drive the car and see if the code returns.