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There is a scanner that says it resets airbag codes to remove the light on your system if it comes on is this true?

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No.
A scantool that specifically is programmed to read the SRS system on a vehicle likely has the ability to clear the code that turned on the lamp if it faulted once and then the root cause never happened again. However in most cases (think 99.9%), when a warning lamp comes on...be it Check Engine, ABS, SRS/Airbag, or whatever else; there is a fault that needs to be checked/repaired. Any competent scantool that specifically supports your vehicle's enhanced systems will likely have the ability to command the computer to erase the fault, but unless the cause of the fault is repaired, the light will return immediately or as soon as the conditions of the fault re-occur and you not only will have gained nothing, but valuable saved fault data and information that a technician can use to diagnose and repair the fault may be lost in the clearing procedure making the diagnostic/repair much more difficult and the chances of misdiagnosis much higher.
Further. since its an SRS related fault, if the code is set due to CRASH DATA STORED (Meaning the SRS computer activated safety systems due to an accident or a perceived accident and deployed airbag, seatbelt tensioners, or active headrests), then no conventional scantool can clear the lamp without significant repairs. The Airbag computer on modern vehicles has a "BLACK-BOX" memory circuit similar to what airplanes use, When a crash occurs (Or what it thinks was a crash), the computer stores the memory permanently and writes it to a location that cannot be cleared by plug-in tooling. WHile there are ways to clear it, they will require custome erase and reprogram of the SRS module using specialized equipment. No scantool is natively capable of this function, as it is a law that the black box data be automatic and UN-eraseable in the event followup investigation is needed by law enforcement or fire or insurance agencies. It also is designed to withstand fire or total destruction of the chassis.
If the problem was caused by a lateral repair, there is the possibility the repaired part is not compatible or not properly programmed to work with the other modules on the vehicle, or that the newly repaired system now is activating a test or system that wasnt correctly operating or self testing when the previous problem existed. It may not be the fault of the technician, and may merely be a case of repairing one problem allowed a previous problem to become visible.
If the replaced module is showing the lamp/fault, the installing tech should have furnished an explanation as to why his repair to the airbag system did not result in normal operation and continued diagnosis or provided an estimate for additional repairs to finalize the repair.

Posted on Apr 07, 2015

  • Gloria J. Allen Apr 07, 2015

    This is helpful but I am puzzled. Chrysler put in a new PCM I did not have this issue before they did that. The day I picked up my car it was there the tech told me it was there he could not explain why. I called back but have not gotten a straight answer and on their Web sight I see so many others having problems like this but I was not one till now and I did not do this they did and I want it gone.

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Sadly, you will need a scan tool for this reset. On most vehicles, the airbag light should come on for @6 seconds, and then go off if the system is working properly. If there is a fault or a problem in the system, the light will remain illuminated, or flash continuously. If the airbag light does not work properly, some vehicles have an audible tone that sounds indicating a problem with the airbag light system. When the light is on (or the tone is sounding), the airbag will NOT deploy, even in an accident. This website gives you the procedure for diagnosing and resetting airbag lights on the ...scanlist.aspx page listed below.

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Some vehicle manufacturers accommodate systems without a scanner (like Toyota, Lexus, Nissan, Infinity, Honda, Acura, Ford, Lincoln, Mazda & Mercury) . Most all other vehicles require a scan tool for the diagnosis. Here is a link to the list of vehicle and scanner requirements.
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