Testing? Airbag lights?? Sensors?? Etc
 

OK ; for the feeble minded here trying to fix their VW without buying a new one; please enlighten me on how to go about testing the bumper crash sensor? and Next the clockspring?? No readings with an ohmmeter?? GOOD or bad?? I kind of need someone who can do a quick outline on testing various parts or where to find the info so I can test the parts my self-- Just replacing all of the parts is too costly and you never know if the replacement part is good or not!