disconnect the negative battery cable for 30 seconds and reconnect it.
install a new headlight bulb.
How do you reset check engine light for the 2009 Chevy trail blazer?
You can either bring it in to a Chevy dealer or use a programmer/tuner to reset the check engine light.
If the check engine light is blinking that means an engine cylinder misfire has been detected
Check
The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle.
It requires an engine scanner to do that.
No, only a problem that effects emissions will set the check engine light.
A flashing check engine light is an indication of a misfire.
That REQUIRES an ENGINE SCANNER to do that.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
ets and check engine light on in 98 Chevy cavalier