Question about 2008 Chevrolet Silverado 1500
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Posted on Jan 02, 2017
First of all you need to get this problem fixed ASAP. While the airbag light is illuminated, your SDM (Sensing and Diagnostic Module aka: the brain of your airbag system) shuts of power to the airbags. In which, if you are in an accident your airbags will not deploy while this light is illuminated. You need to take your vehicle to a GM dealership. A Tech 2 scantool is needed to retrieve the code from the SDM. Hopefully it won't be a costly repair, but is something that defineatly needs to be corrected soon. Good luck and hope all works well.
Posted on Jul 04, 2009
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you may have to drive it several days for the light to go off, or have the codes cleared. personally I would just drive it. if the computer tests it, and it passes the test, it will go off on its own.
Posted on Sep 21, 2009
Just disconnect the battery (negative terminal) and turn the headlight switch on for about 15 minutes. This should reset the PCM. Otherwise go to Advance and have them hookup the code reader and reset the codes. Thanks
Posted on Nov 04, 2009
Hi. the recommended action is to use a diagnostic CPU. Once attached to the in-car port under the dash, you can use this CPU to clear, and reset the DTC. There is another way, as well. You can , simply, pull the negative battery cable for 5 to 10 minutes. This will force the DTC to be cleared, thus, causing the light to shut down for a short time.
Posted on Nov 12, 2009
When the light comes on without flashing, it just means an emissions problem, when it starts to flash it has become more serious. I suspect that there was an error putting the plugs and or wires. That computer can determine if there is a misfire and it will put out a P040X, code where X represents which cylinder is the problem. This will help you not have to take each one apart. If there are more than one, check each number.
Ex. P0401 means there is misfire on cylinder number 1
P0400 is a random misfire detected.
If you take it to an Advance or Autozone they will usually scan if for free.
By the way, if you used cheap plugs instead of platinum plugs that could do it too.
Hope this helps.
Posted on Nov 25, 2009
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