I recently crashed my 04 TL. The only damages on the car is the front bumper and any parts that are directly behind it. When i put in the key all electronics work perfectly fine. My question is what could have been damaged preventing my car to start.

 

Does the starter work, or turn when you turn on the ignition?

If not, look at the starter's ground wire to see if it is connected; then hit the starter casing with a breaker bar or metal bar to see if the starter will turn.

Report back once you've done that.

 

Any luck, getting it started. Since the battery, is in a vulnerable position, I would double check the cables. A loose, or corroded cable, could create the symptom, you describe.

 

airbag sensor is behind the front bumper. I think there are 2. But I can't remember for sure , 1 or 2.