Airbag light issue 1990 - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 7 Old 11-30-2017, 07:11 PM Thread Starter
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Airbag light issue 1990

Iím having an issue with my airbag on a 90 fox. First, I noticed that there was no airbag light coming on when I start the car. Then started hearing that annoying chime when thereís a airbag problem. I checked and tested the bulb, then realized that thereís no power going to the cluster from the plug. Did some reading about it, and removed a larger blue box from behind the A/C control which looks to be some kind of computer for the airbag. Thereís also a smaller blue airbag power supply somewhere that I canít find. Not sure what is causing this issue.. Any help would be greatly appreciated!! Thanks guys!!

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post #2 of 7 Old 11-30-2017, 11:52 PM
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the audible tone occurs when the bulb does NOT work and there is a fault

there is a backup power supply on rail behind the a/c controls

the bulb only comes on during prove out, or a fault, if the module lights a bulb but there is faulty wiring then it will think the bulb is out.

best start doing circuit integrity tests


89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
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post #3 of 7 Old 12-16-2017, 07:51 AM Thread Starter
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Ttt. Does anyone know if the module can power the airbag light? Still have no power going to the cluster.
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post #4 of 7 Old 12-16-2017, 11:08 AM
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it provides the GROUND to light IT

the power that goes to the light is paralleled off at the input of the light

are you not looking at the wiring diagram and see that?

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
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post #5 of 7 Old 12-16-2017, 11:22 AM
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Indy - why are you always being rooster about things?
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post #6 of 7 Old 12-16-2017, 03:25 PM
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Quote:
Originally Posted by JakeC707 View Post
Indy - why are you always being rooster about things?
are you butt hurt?

or are you going to help, and tell the poster exactly where the power comes from?

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
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post #7 of 7 Old 12-17-2017, 11:48 AM Thread Starter
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Quote:
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it provides the GROUND to light IT

the power that goes to the light is paralleled off at the input of the light

are you not looking at the wiring diagram and see that?
Thanks indy2000. Iíll check it out
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