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Do you see a key with a slash thru it on the dash? If so then you either have a bad key or bad SKIM module... The only choice you have will be to call a mobile locksmith and have him cut and program you a new key and see if it will start and of not then you will likely need a new SKIM module.. But the proper way to diagnose this will be to check the codes in the SKIM module.
I hope this helps,