02 2.9 nonturbo immobilized
 

Car won't start. Has immobile- see manual.
What causes this to happen?
Have error 025 srs airbag on and service light on.
Ran fine. Got 400 miles to a tank with it up to this. I live in mn and times are tight right now so dealership isn't an option...

Usually that means CEM cannot read key transponder or keys are lost.