September 2, 20205 yr +1 for this fix for a 2008 outback. Airbag light was intermittent, sometimes fail, sometimes pass though lately it was failing consistently. Reflowed all components on both sides of the board using just enough heat to flow the solder completely, including the wire junctions to the board. The bad joints in my case seemed to be the 330 ohm (labeled 331) chip resistors on the back side of the board, had cracks in two places at the solder joint, probably from mechanical stress/temperature cycling. The 000 resistors are just that, zero ohms. Should be a dead short across them no matter what else is in that circuit. The airbag light went off immediately after power on self test without using a scanner to reset it.
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