Airbag deployment light flashes
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Fleet Mechanic
Joined: Jun 2007
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From: Ohio
Airbag deployment light flashes
The airbag deployment light on the left side of the dash in my 96 f150 had been flashing now for no apparent reason for a couple weeks now. It flashes in a sequence of 3 blinks, a pause for about 6 seconds then repeats. I have no idea why it's doing this and would like to stop it from doing it anymore. If anyone could help that'd be great!
Junior User
Joined: Mar 2013
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The light is flashing out a code. depending on how it is flashing it as to what code it is. The codes are two digit, the light will flash the first digit pause for a sec then flash the next digit, pause for a few secs and then flash the first digit of the next code... ect. So if it flashes two times pauses then flashes one time that would be a code 21, but if it flashes one time, pauses then flashes two times that would be a code 12.
Tell us exactly how it is flashing and should be able to point you in the right direction.
Tell us exactly how it is flashing and should be able to point you in the right direction.
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Fleet Mechanic
Joined: Jun 2007
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From: Ohio
Sorry I tried to watch it while I was driving. It's actually four flashes. Here's a vid to help:
100_2026_zpsce1f392d.mp4 Video by nw150 | Photobucket
Looks like it's three then one?
100_2026_zpsce1f392d.mp4 Video by nw150 | Photobucket
Looks like it's three then one?
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Fleet Mechanic
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From: Ohio
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Fleet Mechanic
Joined: Jun 2007
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From: Ohio
Sorry for such a late response but I've been busy with work and haven't had a chance to check this until now. What exactly am I checking again? I found the two sensors up front and the box lookin things are rusty. I unhooked each line where there's that white clip and the prongs looked good. Just any guidance on how to go about checking everything would be great!
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Joined: Apr 2011
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From: Hartland, WI
SRS wiring is generally yellow (so people know to use caution around it). The sensor itself may have failed or been tripped. There's a gold plated ball on a ramp on one end inside the sensor, and gold plated contacts on the other. In a collision, the ball gets dislodged and rolls down the ramp, completing the electrical circuit. When the impact sensor inside the truck (two must be tripped to deploy the airbags) is also tripped the airbag control module then sends the signal to fire the airbags, either at full power or reduced power (for the "next generation" or "second generation". "First gen" ones only have full power). Check the wiring to make sure there's no rubbed through spots where it could be shorted. Do not use a power probe or voltmeter on SRS systems unless the diagnostic flow chart specifies to. Static electricity is enough to cause an airbag to deploy.
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