Airbag Testing

Posted by Doug Montgomery
Doug Montgomery
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on Wednesday, 22 February 2012
in Airbag
Airbag Testing Airbag and seat belt detonator assemblies don’t use a separate removable resistance sensors, however they do have an intrinsic resistance value that the airbag ECU uses to “sense” a defective airbag circuit. With that in mind we can substitute a potentiometer (pot’) in place of the actual airbag assembly in order to determine if the airbag resistance itself is out of specification or if there is a defect within the harness going to the suspect airbag circuit or the module itself.I typically use 0 - 25 Ohm range pot to test airbag systems. You only need two of three...
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