How to re-program volvo's icm and keys?

Christine_S80_Christine_S80_ Member Posts: 1
edited November 2018 in Volvo
I changed the ICM in my 2000 s80 volvo and then put the original one back in because it wouldn't start. So now it won't start or crank over. And it cranked over and ran before I took the original one out, I was trying to clear transmission codes.
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  • thecardoc3thecardoc3 Member Posts: 5,823
    ICM? Infotainment control module?

    At this point you need to start fresh as if nothing has been touched. List of all the codes showing up in every module.
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