Touching the terminals together will not get you a code. OBDII stand for On Board Diagnostics 2. How did you come up with code 65 ? P is always the prefex in OBDII. I can check the service manual for you if you like. but I need the correct code.
The data connector is not under the dash. This connector is located in front of the shifter under the coin tray. You pull the little cover out. You won't get the codes with out a reader. In addition the code will not go away if you disconnect the battery. Hard code lights will stay on even if the problem goes away for at least 3 run ins.