Do you mean the check engine light does not come on when you turn the ignition on? Possibly the bulb is burnt out.
You can take it to a professional, or you can check the reading yourself. A check engine light can mean many things.
My rpm light came on but not my check engine light so what does that mean when the rpm light is on
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.
Supplemental Restraint System
What year is your car? Did you mean the CHECK ENGINE light? The battery gauge?
An engine cylinder misfire has been detected if your check engine light is flashing
take it to the autozone they check the engine light for free
A flashing check engine light is an indication of a misfire.
my check engine light stays on and the o/d light blinks....what could this mean?
An engine light check means some fault in the engine . Check the handbook to get more details to find what and where the fault is.
it means you need to check the engine
The check engine light stays on when the engine computer has detected a malfunction and set a trouble code.
This could mean any number of things. I have a 98 Tacoma and the "check engine" light has only come on once in 8 years ... and that was because I didn't have a gas cap at the time!
you should check your engine...like now...
A flashing check engine light normally means you have a misfire.
A flashing check engine light is an indication of a misfire. Immediate catalytic converter damage is possible.
check engine light. it means you should eather check your "codes" or go to an auto shop and tell them your check engine light is on. sometimes its free.
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
Connect an OBD2 scan tool which will retrieve the codes set by the ECU. If you mean how to check to see if the light is working just turn the key on without starting the engine. The check engine light will illuminate.
The check engine light comes on when the engine computer has detected a malfunction and set a trouble code.
why does the engine light remain on after starting
When the check your engine light comes on in a vehicle it can mean various things. The light is part of the vehicles diagnostic system and acts as a warning that something may be wrong with your vehicle.
your engine is stuffed