With a scan tool.
I think you are talking about the secondary air check valve. Come to our enthusiasts forum and post your question there with the trouble code (Pxxxx) www.trailvoy.com All the Answers for your Trailblazer
No the check engine light will not come on
The check engine light on a 2005 Jeep Grand Cherokee looks like this... Here is a link Check Engine Light It looks like a little yellow engine.
Try taking the batter cable off for about a min and then replacing it... it should go off unless there is really a new or recuring component problem.
A flashing check engine light is an indication of a misfire.
That is the check engine light. Looks like a picture of an engine.
The usual issue with a 2005 Saturn Vue engine light is a problem with the EGR valve. It is best to have a mechanic check out the problem.
If the check engine light is blinking on your 2005 Dodge Stratus, you most likely have a sensor that is damaged or requires replacement. You can check this by accessing the diagnostic computer at the dealership.
If the check engine light is blinking on your 2005 Dodge Stratus, you most likely have a sensor that is damaged or requires replacement. You can check this by accessing the diagnostic computer at the dealership.
One way to reset a 2005 Honda Element check engine light is to disconnect the battery. The battery will need to be disconnected for about 5 minutes for the light to reset.
how do you reset the check engine light on a 2005 Toyota tundra