Question about Cars & Trucks
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
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jun 30, 2015 | 2009 Nissan Xterra
Mar 04, 2015 | Cars & Trucks
Mar 15, 2013 | 2001 Chevrolet Blazer
Sep 28, 2010 | 1999 Toyota Avalon
Jun 01, 2010 | 2003 Nissan Altima
Jul 02, 2009 | 1995 Ford Econoline
May 22, 2009 | 2005 Dodge Caravan
114 people viewed this question
Usually answered in minutes!