From FORD:

<TABLE style="WIDTH: 100%; mso-cellspacing: 0in; mso-yfti-tbllook: 1184; mso-padding-alt: 0in 0in 0in 0in" class=MsoNormalTable border=0 cellSpacing=0 cellPadding=0 width="100%"><TBODY><TR style="mso-yfti-irow: 0; mso-yfti-firstrow: yes"><TD style="BORDER-BOTTOM: #f0f0f0; BORDER-LEFT: #f0f0f0; PADDING-BOTTOM: 0in; BACKGROUND-COLOR: transparent; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #f0f0f0; BORDER-RIGHT: #f0f0f0; PADDING-TOP: 0in">Repairing Supplemental Restraint System (SRS) intermittent warning lights and faults can be frustrating. They come in a wide variety of configurations and extend to many different locations with many components, requiring a large number of electrical circuits and connectors.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o>
</TD></TR><TR style="mso-yfti-irow: 1"><TD style="BORDER-BOTTOM: #f0f0f0; BORDER-LEFT: #f0f0f0; PADDING-BOTTOM: 0in; BACKGROUND-COLOR: transparent; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #f0f0f0; BORDER-RIGHT: #f0f0f0; PADDING-TOP: 0in"><o></o>
</TD></TR><TR style="mso-yfti-irow: 2"><TD style="BORDER-BOTTOM: #f0f0f0; BORDER-LEFT: #f0f0f0; PADDING-BOTTOM: 0in; BACKGROUND-COLOR: transparent; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #f0f0f0; BORDER-RIGHT: #f0f0f0; PADDING-TOP: 0in">When a hard fault occurs due to a failed component such as an airbag module, an SRS repair can be straightforward. But intermittent faults with on again/off again airbag-warning lights can be harder to correct. A lesser-known cause can be the result of terminal fretting, a condition that can affect low voltage circuits such as those contained in the SRS. Fretting is caused by microarcing between the male and female terminals of a connector. When microscopic fretting occurs between connecting surfaces, insulating oxide wear debris can build up and produce high-resistance and/or intermittent connections.<o></o>
</TD></TR><TR style="mso-yfti-irow: 3"><TD style="BORDER-BOTTOM: #f0f0f0; BORDER-LEFT: #f0f0f0; PADDING-BOTTOM: 0in; BACKGROUND-COLOR: transparent; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #f0f0f0; BORDER-RIGHT: #f0f0f0; PADDING-TOP: 0in"><o></o>
</TD></TR><TR style="mso-yfti-irow: 4"><TD style="BORDER-BOTTOM: #f0f0f0; BORDER-LEFT: #f0f0f0; PADDING-BOTTOM: 0in; BACKGROUND-COLOR: transparent; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #f0f0f0; BORDER-RIGHT: #f0f0f0; PADDING-TOP: 0in">Severe fretting corrosion appears as little dark smudges on electrical terminals. To help prevent this, make sure connectors fit tightly together and that movement and shaking around them doesn't cause them to wiggle (which causes fretting.)<o></o>
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