I have a 2003 Kia Sedona. The light was on, but my code reader would not read the code. So, I brought the car to the dealer who found the gas cap was loose (actually the retaining strap had caught under the cap). I would like to know why my code reader that I bought from Harbor Freight could not read the code (it said error). The reader works fine on America cars and Hyundai's. You bought A CODE READER!!!!! Not a scantool/it's like night and day. If it is a Vehicle manufacturer specific code it will not show on a aftermarket code reader unless you buy the good stuff!
A bulb would cause it to illuminate!!
The airbag light would have nothing to do with emissions. If they are doing a safety inspection, it would fail.
Any fault that affects emissions will turn the light on. You need to have it checked for codes to know possible causes.
No. If your vehicle can pass an emissions test, chances are that it's just a bad sensor.
No. It would cause the check engine light to illuminate and fail an emissions test but it would start and run.
The check engine light comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, a check engine light is lit when there is a problem in the emissions or somthing that is affecting the effectiveness of the emissions.
A blinking Check Engine light indicates a serious problem with the emissions system. Have this repaired immediately.
This would be indicated by a "blue shift" of spectral lines in its light emissions.
Yes, I blown head gasket will definitely effect the emissions.
A problem with the emissions will sometimes shut off the traction control, thus illuminating the light.