the fan, check for power at the resistor, they go bad, if you got power test at the fan plug, if still no power it could be the ignition harness, that could aslo afect the dic and hud and the no power to the fan.
the air bag, the radio have steering wheel controls? if so do they light up and work? if not the colck spring is bad. or theres a dirty plug under the seat, or under the dash by the obd2 port. any yellow plugs to see are air bag related. or the air bag module under the pass side front seat and carpet could be bad.
the abs light, check for play in all 4 wheels lugs tight jack it up and grab the top of the tire and push and pull firmly, if you feel play that hub could be bad. if you cant find play or a bad wire, just have it scanned for codes at the local garage, its better then tossing parts at it.