Immobilizer system shutdown
 

Please someone help me. I bought a Mazda 8 almost a year ago. I love love love this car, however I got to drive in for only a week before having headlights put in at a local garage, unfornutaly something happened and my wiring harness melted together at the headlights. I made the decision to replace the wiring harness. I've done that and the immobilizer system is still shut down on it. Can someone help me and tell me what to do? I'm already so much money deep into it I got it I can't stop now. if is a garage I can take it to or someone I can take it to that knows what to do about it please let me know.
​​​​​​Big big thanks