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Can you please provide me the trouble codes you are getting ???
The fault you have listed is because you are loosing communication to the abs control module and the reason the airbag light also comes on is because the communication between the airbag module and the abs module is getting lost . Have you replaced the abs control module ??
Ok you need to see if you have communication with the abs control module check this with a scan tool and wee which faults you have in the abs module not the ecm , start there if you cannot communicate with the abs module and you have all good fuses then you will need a new abs control module . I hope this helps
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I am saying things will need to be checked to see if you need a new abs module , modules are about $ 550 and are different from a sensor . I hope this helps please dont forget the feedback ill sill help you after the feedback