Review Of 2006 Check Engin Light Went On Then Turned Off Ideas. Web something caused that light to turn on in the first place, and the technicians can read the trouble codes with an obd scanner to see what and why the test failed. So, should you be worried when the check engine light turned off by itself?
For now, here are four possible causes worth considering. Web by nick kurczewski updated: If the gas cap isn’t sealed completely, it can set a code because of an evap leak.
