My powder window and fan motor stopped and the air bag light come on. on 2001 Chrysler PT Cruiser

someone told me to check ground wire by the fuse box but I can't find it. Could you please tell where to look. He said something about a Bus Bar Thank You

Asked by for the 2001 Chrysler PT Cruiser
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check your fuses first if they are ok then check for power and ground at your blower motor connector also scan test for codes
I check all of the fuses and all ok. Somebody told me to check bus bar which I don't know where that would be. Where would the ground be for the blower motor be I found the one by the fuse box under the hook and everything look good there Thanks for your help