Hello!
if there is no service engine light on the dash with the key on, the next step would be to check all pwers and grounds going into the computer.
If you need a diagram, let me know!
Ok...
On the white connector, pin 10, 15, and 16 should have power with the key on.
On the white connector, pin 12 and pin 13 should be ground
ASE MASTER TECH
CAR TECHNICIAN ADVANCED LEVEL SPECIALIST ALL MAKES AND MODELS