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S.R.S. Code #42

7K views 3 replies 2 participants last post by  Johnny Mullet 
#1 ·
I have a 2003 Expedition 5.4l which recently started flashing code 4 - 2 with the
air bag icon, all the connectors look to be intact. The odd thing is that I had just replaced the air filter which may be a coincidence.

Anyone know what the fault is or where to track down the codes?

:driver:
 
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