2009 Jeep Patriot Q&A

2009 Jeep Patriot Question: 2009 Jeep Patriot check engine light on, no code

Do you need to turn the car on to get the code? Or can it register with just power on? I had someone put the diagnostic machine on to read the code, but he did not turn the engine over. -
Answer 1
NO POSS NEEDS A BETTER SCANNER TO RETRIEVE CODES -