If anybody could advise me it would be appreciated, i have a security light flashing never had a security system since the car was new, now I dont have any power to the following items power doorlocks,headlights, interior lights, keyless remote doesn't work either I dont want to pay for a visit to the dealer thanks bob

 

yea, dealers can get pricey real quick. I'm sure this is a simple fix, I'll move it over to the durango section for you.

welcome to DF!

 

it could be the ctm (i think thats what its called) it controls all of those things unfortunately you will have to go to the dealer to get it programed so that your remotes work, take them both with you

 

CTM is correct Sharp!

Try to reset the PCM as seen in here:
Engine Code Index (Check Engine Light?)